MARKET STUDY All analysis covers resale homes only. New construction appears once, in its own section. Click any dot on the map for that sale.
Resale sales, 365 days
46
single-family resale homes
Median net sale price
$517,250
average $504,613
Median net price per SF
$185
average $182
Median days on market
56 days
average 87 days
1. SummaryResale homes · 46 sales · October 26, 2025 – October 25, 2026
This study looks at the 46 resale homes sold in Blackhawk in the 365 days to October 25, 2026. A full year is used because only 24 resale homes sold in the last 180 days. New construction is left out and shown on its own in section 7. The homes are compared four ways: by price, by living area, by year built and with or without a view. The first three are split into four equal groups (quartiles), each named by its range.
Each comparison has its own section (3–6) with everything about it in one place: the key differences, a table of every measure at a glance, the charts and the numbers.
2. Where the resale homes sold46 resale homes · colored by price range
Each dot is one resale home, colored by its price range. Use the buttons to show one price range at a time. Click a dot for that sale: address, close date, original and last list price, net sale price, living area, net sale per SF and days on market. Scroll or pinch to zoom.
3. Quartiles by net sale priceResale homes · 46 sales · October 26, 2025 – October 25, 2026
Sales ranked by net sale price and cut into four equal groups. This is the usual way to read a market by price.
Bottom line
Homes over $572K are about 1,550 SF (74%) larger than homes under $395K.
Homes over $572K are about 12 years newer than homes under $395K.
3.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under $395K$395K–$515K$520K–$572KOver $572K
Higher-priced homes Over $572K
Are much larger.
Tend to be newer.
Lower-priced homes Under $395K
Are much smaller.
Tend to be older.
3.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under $395K
$395K–$515K
$520K–$572K
Over $572K
Real difference?
Net price per SF
$170 per SF
$186 per SF
$189 per SF
$183 per SF
unclear
Living area
2,095 SFSmallest
2,513 SF
2,918 SF
3,650 SFLargest
✓ large
Year built
2007Oldest
2017
2017
2018Newest
✓ large
Days on market
88 days
58 days
47 days
49 days
unclear
Discount from original list
10.1%
6.7%
6.5%
7.7%
unclear
Price cut before sale
83%
64%
36%
42%
unclear
Seller paid closing costs or repairs
67%
64%
55%
50%
unclear
Has a view
17%
18%
9%
8%
unclear
How to read this section. Each heading gives the finding. The gold box says whether the gap is real (✓, with its size) or could be chance (–). The section ends with its numbers; the tests are in section 8.3.
3.3 Net price per SF: no clear difference
The average is $183 per SF for homes over $572K and $170 per SF for homes under $395K. It does not move in a straight line; homes $520K–$572K are highest. Defined in 8.1.2.
– No clear difference · could be chance
3.4 Homes over $572K are about 1,550 SF (74%) larger than homes under $395K
The average is 3,650 SF for homes over $572K and 2,095 SF for homes under $395K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
✓ Real difference · large
3.5 Homes over $572K are about 12 years newer than homes under $395K
The median is 2018 for homes over $572K and 2007 for homes under $395K. It rises step by step from the lowest range to the highest. Defined in 8.1.4.
✓ Real difference · large
3.6 Days on market: no clear difference
The median is 49 days for homes over $572K and 88 days for homes under $395K. It does not move in a straight line; homes under $395K are highest. Defined in 8.1.5.
– No clear difference · could be chance
3.7 Discount from original list: no clear difference
The average is 7.7% for homes over $572K and 10.1% for homes under $395K. It does not move in a straight line; homes under $395K are highest. Defined in 8.1.6.
– No clear difference · could be chance
3.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
42% of homes over $572K had a price cut before sale, against 83% of homes under $395K. Defined in 8.1.7.
50% of homes over $572K had the seller pay closing costs or repairs, against 67% of homes under $395K. Defined in 8.1.8.
8% of homes over $572K have a view, against 17% of homes under $395K. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
3.9 The numbers: price and size
Under $395K12 sales
$395K–$515K11 sales
$520K–$572K11 sales
Over $572K12 sales
All46 sales
Real difference?
Net sale price average
$351,498
$462,091
$543,776
$660,808
$504,613
by design
Net price per SF average
$170
$186
$189
$183
$182
unclear
Living area average
2,095
2,513
2,918
3,650
2,797
✓ large
Year built median
2007
2017
2017
2018
2016
✓ large
3.10 The numbers: selling
Under $395K12 sales
$395K–$515K11 sales
$520K–$572K11 sales
Over $572K12 sales
All46 sales
Real difference?
Days on market median
88
58
47
49
56
unclear
Discount from original list average
10.1%
6.7%
6.5%
7.7%
7.8%
unclear
Price cut before sale
83%
64%
36%
42%
57%
unclear
Seller paid closing costs or repairs
67%
64%
55%
50%
59%
unclear
Has a view
17%
18%
9%
8%
13%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.1.
4. Quartiles by living areaResale homes · 46 sales · October 26, 2025 – October 25, 2026
Sales ranked by living area and cut into four equal groups, from the smallest homes to the largest.
Bottom line
Homes over 2,996 SF sell for about $270K (73%) more than homes under 2,390 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 2,390 SF2,390–2,738 SF2,784–2,996 SFOver 2,996 SF
Larger homes Over 2,996 SF
Sell for much more.
Smaller homes Under 2,390 SF
Sell for much less.
4.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under 2,390 SF
2,390–2,738 SF
2,784–2,996 SF
Over 2,996 SF
Real difference?
Net sale price
$372KLowest
$459K
$546K
$642KHighest
✓ large
Net price per SF
$188 per SF
$179 per SF
$191 per SF
$170 per SF
unclear
Year built
2010
2012
2017
2018
unclear
Days on market
56 days
98 days
55 days
70 days
unclear
Discount from original list
7.4%
9.7%
4.6%
9.3%
unclear
Price cut before sale
75%
73%
18%
58%
unclear
Seller paid closing costs or repairs
58%
73%
55%
50%
unclear
Has a view
25%
9%
9%
8%
unclear
4.3 Homes over 2,996 SF sell for about $270K (73%) more than homes under 2,390 SF
The average is $642K for homes over 2,996 SF and $372K for homes under 2,390 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
✓ Real difference · large
4.4 Net price per SF: no clear difference
The average is $170 per SF for homes over 2,996 SF and $188 per SF for homes under 2,390 SF. It does not move in a straight line; homes 2,784–2,996 SF are highest. Defined in 8.1.2.
– No clear difference · could be chance
4.5 Year built: no clear difference
The median is 2018 for homes over 2,996 SF and 2010 for homes under 2,390 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.4.
– No clear difference · could be chance
4.6 Days on market: no clear difference
The median is 70 days for homes over 2,996 SF and 56 days for homes under 2,390 SF. It does not move in a straight line; homes 2,390–2,738 SF are highest. Defined in 8.1.5.
– No clear difference · could be chance
4.7 Discount from original list: no clear difference
The average is 9.3% for homes over 2,996 SF and 7.4% for homes under 2,390 SF. It does not move in a straight line; homes 2,390–2,738 SF are highest. Defined in 8.1.6.
– No clear difference · could be chance
4.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
58% of homes over 2,996 SF had a price cut before sale, against 75% of homes under 2,390 SF. Defined in 8.1.7.
50% of homes over 2,996 SF had the seller pay closing costs or repairs, against 58% of homes under 2,390 SF. Defined in 8.1.8.
8% of homes over 2,996 SF have a view, against 25% of homes under 2,390 SF. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
4.9 The numbers: price and size
Under 2,390 SF12 sales
2,390–2,738 SF11 sales
2,784–2,996 SF11 sales
Over 2,996 SF12 sales
All46 sales
Real difference?
Net sale price average
$371,852
$458,750
$545,636
$641,810
$504,613
✓ large
Net price per SF average
$188
$179
$191
$170
$182
unclear
Living area average
1,977
2,565
2,864
3,768
2,797
by design
Year built median
2010
2012
2017
2018
2016
unclear
4.10 The numbers: selling
Under 2,390 SF12 sales
2,390–2,738 SF11 sales
2,784–2,996 SF11 sales
Over 2,996 SF12 sales
All46 sales
Real difference?
Days on market median
56
98
55
70
56
unclear
Discount from original list average
7.4%
9.7%
4.6%
9.3%
7.8%
unclear
Price cut before sale
75%
73%
18%
58%
57%
unclear
Seller paid closing costs or repairs
58%
73%
55%
50%
59%
unclear
Has a view
25%
9%
9%
8%
13%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.2.
5. Quartiles by year builtResale homes · 46 sales · October 26, 2025 – October 25, 2026
Sales ranked by year built and cut into four groups, from the oldest to the newest. Homes built in the same year always stay in the same group, so group sizes can differ a little.
Bottom line
Homes built after 2019 sell for about $196K (53%) more than homes built before 2011.
Homes built after 2019 sell for about $33 per SF (20%) more than homes built before 2011.
Homes built after 2019 are about 590 SF (27%) larger than homes built before 2011.
5.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Before 20112011–20162017–2019After 2019
Newer homes After 2019
Sell for much more.
Sell for more per square foot.
Are much larger.
Older homes Before 2011
Sell for much less.
Sell for less per square foot.
Are much smaller.
5.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Before 2011
2011–2016
2017–2019
After 2019
Real difference?
Net sale price
$370KLowest
$525K
$552K
$565KHighest
✓ large
Net price per SF
$170 per SFLowest
$178 per SF
$171 per SF
$203 per SFHighest
✓ large
Living area
2,202 SFSmallest
2,991 SF
3,255 SFLargest
2,789 SF
✓ large
Days on market
71 days
52 days
100 days
47 days
unclear
Discount from original list
9.9%
6.9%
7.5%
7.0%
unclear
Price cut before sale
73%
46%
56%
54%
unclear
Seller paid closing costs or repairs
45%
62%
67%
62%
unclear
Has a view
18%
15%
11%
8%
unclear
5.3 Homes built after 2019 sell for about $196K (53%) more than homes built before 2011
The average is $565K for homes built after 2019 and $370K for homes built before 2011. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
✓ Real difference · large
5.4 Homes built after 2019 sell for about $33 per SF (20%) more than homes built before 2011
The average is $203 per SF for homes built after 2019 and $170 per SF for homes built before 2011. It does not move in a straight line; homes built after 2019 are highest. Defined in 8.1.2.
✓ Real difference · large
5.5 Homes built after 2019 are about 590 SF (27%) larger than homes built before 2011
The average is 2,789 SF for homes built after 2019 and 2,202 SF for homes built before 2011. It does not move in a straight line; homes built 2017–2019 are highest. Defined in 8.1.3.
✓ Real difference · large
5.6 Days on market: no clear difference
The median is 47 days for homes built after 2019 and 71 days for homes built before 2011. It does not move in a straight line; homes built 2017–2019 are highest. Defined in 8.1.5.
– No clear difference · could be chance
5.7 Discount from original list: no clear difference
The average is 7.0% for homes built after 2019 and 9.9% for homes built before 2011. It does not move in a straight line; homes built before 2011 are highest. Defined in 8.1.6.
– No clear difference · could be chance
5.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
54% of homes built after 2019 had a price cut before sale, against 73% of homes built before 2011. Defined in 8.1.7.
62% of homes built after 2019 had the seller pay closing costs or repairs, against 45% of homes built before 2011. Defined in 8.1.8.
8% of homes built after 2019 have a view, against 18% of homes built before 2011. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
5.9 The numbers: price and size
Before 201111 sales
2011–201613 sales
2017–20199 sales
After 201913 sales
All46 sales
Real difference?
Net sale price average
$369,739
$525,094
$552,021
$565,435
$504,613
✓ large
Net price per SF average
$170
$178
$171
$203
$182
✓ large
Living area average
2,202
2,991
3,255
2,789
2,797
✓ large
Year built median
2006
2013
2018
2020
2016
by design
5.10 The numbers: selling
Before 201111 sales
2011–201613 sales
2017–20199 sales
After 201913 sales
All46 sales
Real difference?
Days on market median
71
52
100
47
56
unclear
Discount from original list average
9.9%
6.9%
7.5%
7.0%
7.8%
unclear
Price cut before sale
73%
46%
56%
54%
57%
unclear
Seller paid closing costs or repairs
45%
62%
67%
62%
59%
unclear
Has a view
18%
15%
11%
8%
13%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.3.
6. View and no viewResale homes · 46 sales · October 26, 2025 – October 25, 2026
Sales where the MLS lists a view (greenbelt or park, trees, golf course, hill country, water and similar) against those listing none or only the neighborhood. 3 sales whose MLS view entry is only “See Remarks” are left out.
Bottom line: no measure differs enough between the groups to rule out chance.
6.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
6.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
View
No view
Real difference?
Net sale price
$492K
$501K
unclear
Net price per SF
$187 per SF
$181 per SF
unclear
Living area
2,638 SF
2,786 SF
unclear
Year built
2012
2016
unclear
Days on market
52 days
58 days
unclear
Discount from original list
8.8%
7.6%
unclear
Price cut before sale
83%
54%
unclear
Seller paid closing costs or repairs
67%
59%
unclear
6.3 Net sale price: no clear difference
The average is $492K for homes with a view and $501K for homes without a view. Defined in 8.1.1.
– No clear difference · could be chance
6.4 Net price per SF: no clear difference
The average is $187 per SF for homes with a view and $181 per SF for homes without a view. Defined in 8.1.2.
– No clear difference · could be chance
6.5 Living area: no clear difference
The average is 2,638 SF for homes with a view and 2,786 SF for homes without a view. Defined in 8.1.3.
– No clear difference · could be chance
6.6 Year built: no clear difference
The median is 2012 for homes with a view and 2016 for homes without a view. Defined in 8.1.4.
– No clear difference · could be chance
6.7 Days on market: no clear difference
The median is 52 days for homes with a view and 58 days for homes without a view. Defined in 8.1.5.
– No clear difference · could be chance
6.8 Discount from original list: no clear difference
The average is 8.8% for homes with a view and 7.6% for homes without a view. Defined in 8.1.6.
– No clear difference · could be chance
6.9 How often: price cut before sale, seller paid closing costs or repairs
Each bar is the share of homes in the group, in percent.
83% of homes with a view had a price cut before sale, against 54% of homes without a view. Defined in 8.1.7.
67% of homes with a view had the seller pay closing costs or repairs, against 59% of homes without a view. Defined in 8.1.8.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
6.10 The numbers: price and size
View6 sales
No view37 sales
All43 sales
Real difference?
Net sale price average
$491,917
$500,545
$499,341
unclear
Net price per SF average
$187
$181
$182
unclear
Living area average
2,638
2,786
2,765
unclear
Year built median
2012
2016
2016
unclear
6.11 The numbers: selling
View6 sales
No view37 sales
All43 sales
Real difference?
Days on market median
52
58
55
unclear
Discount from original list average
8.8%
7.6%
7.8%
unclear
Price cut before sale
83%
54%
58%
unclear
Seller paid closing costs or repairs
67%
59%
60%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.4.
7. New constructionBasic statistics · 63 sales · October 26, 2025 – October 25, 2026
Homes sold new by the builder in the same 365 days. They are left out of every other section and shown here as basic figures only: 63 sales, no groups, no tests.
Note: these are only the new-construction sales reported in ABOR MLS. Builders often sell homes without listing them in the MLS, so these figures do not necessarily represent all new-construction sales in Blackhawk.
Measure
Average
Median
Sales
63
Net sale price
$584,456
$572,000
Net price per SF
$208
$206
Living area (SF)
2,838
2,898
Days on market
116
106
Discount from original list
7.5%
7.0%
Price cut before sale
68% of sales
Seller paid closing costs or repairs
41% of sales
Year built
2023–2026
Same definitions as the rest of the study (section 8). New construction = NewConstructionYN true, or PropertyCondition “New Construction” or “Under Construction”.
8. AppendixMeasures, methods and tests
Each measure and method three ways: in plain words, as statistics, and with the data from this study.
8.1 Measures
8.1.1 Net sale price
In simple terms
What the seller actually kept: the closing price, less money the seller gave back to the buyer for closing costs or repairs. It is the truest price for comparing homes.
Statistically
Net = ClosePrice − ACTRIS_BuyersClsgCostPdbySell − ACTRIS_RepairsAmount (a blank counts as $0). Summarized by the arithmetic mean in the slices.
The data
46 resale sales. Average $504,613; median $517,250; standard deviation $131,791; middle half (25th–75th percentile) $387,312–$574,250; lowest $242,750, highest $965,000. 27 sales had a seller payment; their median payment was $5,500.
8.1.2 Net price per SF
In simple terms
Net sale price divided by the heated and cooled square feet. It puts homes of different sizes on the same footing: did buyers pay more for each square foot, not just for more square feet?
Statistically
psf = Net ÷ LivingArea, per sale; summarized by the mean of the per-sale ratios.
The data
46 resale sales. Average $182; median $185; standard deviation $24; middle half (25th–75th percentile) $169–$198; lowest $135, highest $230.
8.1.3 Living area
In simple terms
The heated and cooled space, as listed in the MLS. Garages and porches are not counted.
Statistically
RESO LivingArea, in square feet. Sales under 400 SF are treated as entry errors and left out.
The data
46 resale sales. Average 2,797; median 2,761; standard deviation 726; middle half (25th–75th percentile) 2,366–3,035; lowest 1,526, highest 4,689.
8.1.4 Year built
In simple terms
The year the home was finished, as listed in the MLS. It shows whether a group leans to older or newer phases of the community.
Statistically
RESO YearBuilt; summarized by the median, with the 25th–75th percentile (middle half) on the charts.
The data
46 resale sales. Average 2015; median 2016; standard deviation 6; middle half (25th–75th percentile) 2011–2020; lowest 2000, highest 2023.
8.1.5 Days on market
In simple terms
How many days the home was on the market before the buyer's offer was accepted, counting any earlier listing periods (relists). This is the days on market agents and clients quote.
Statistically
CDOM = max(CumulativeDaysOnMarket, DaysOnMarket, PurchaseContractDate − ListingContractDate). The MLS counter can freeze at a price change, so the contract-date gap is a floor. Summarized by the median, because a few homes that sat for months pull an average up.
The data
46 resale sales. Average 87; median 56; standard deviation 75; middle half (25th–75th percentile) 32–131; lowest 2, highest 284. 0 sales went under contract on their listing date (0 days).
8.1.6 Discount from original list
In simple terms
How far below the first asking price the home sold, after seller payments. It measures how much negotiating room sellers gave up. A negative figure means the home sold above its first asking price.
Statistically
Discount % = (OriginalListPrice − Net) ÷ OriginalListPrice × 100, per sale; summarized by the mean.
The data
46 resale sales. Average 7.8%; median 5.2%; standard deviation 7.1%; middle half (25th–75th percentile) 3.0%–11.0%; lowest −0.2%, highest 29.6%. 1 sales closed above their first asking price.
8.1.7 Price cut before sale
In simple terms
The asking price was lowered at least once before the home went under contract.
Statistically
Indicator: ListPrice at close < OriginalListPrice. Reported as the share of sales (%).
The data
26 of 46 resale sales (56.5%).
8.1.8 Seller paid closing costs or repairs
In simple terms
The seller paid some of the buyer's closing costs or repairs.
Statistically
Indicator: ACTRIS_BuyersClsgCostPdbySell + ACTRIS_RepairsAmount > 0. Reported as the share of sales (%).
The data
27 of 46 resale sales (58.7%).
8.1.9 Has a view
In simple terms
The MLS says the home looks over something: a greenbelt or park, trees, golf course, hill country, water and similar.
Statistically
View = the View field holds any entry other than “None”, “Neighborhood” or “See Remarks”. No view = only “None” and/or “Neighborhood”. A record whose only entry is “See Remarks” cannot be classified and is left out of the view slice.
The data
6 sales with a view, 37 without, 3 unclassified. Most common View entries: None 25, Neighborhood 12, Pond 4, See Remarks 3, Park/Greenbelt 3, Pool 1, Creek/Stream 1, Panoramic 1.
8.2 Methods
8.2.1 Data source
In simple terms
Every figure comes from the Austin Board of REALTORS® MLS, read live by ALEX. No figure is estimated or typed in.
Statistically
Bridge Interactive RESO Web API (OData), ABOR dataset, every field returned. Filter: StandardStatus = Closed, PropertyType = Residential, City = Pflugerville, SubdivisionName contains any of “blackhawk”, “park at blackhawk”, “grove at blackhawk”, “park at blackhawk vi”, “park at blackhawk ii”, “the park at blackhawk”, “lakeside at blackhawk iii”, “lakeside at blackhawk ii” (case-insensitive). A record is kept when its subdivision name belongs to the Blackhawk family, the same rule comparable sales use (it includes Park at Blackhawk, Grove at Blackhawk, Park At Blackhawk Vi Sec 1 The, Park At Blackhawk Ii Ph 3B Th, The Park at Blackhawk, Lakeside At Blackhawk Ii Ph 2, proven adjacent and priced alike).
The data
Pulled October 26, 2026: 109 closed Blackhawk records over the prior year, in ZIP 78660. 22 subdivision spellings kept, the most common: Blackhawk (44); Grove at Blackhawk (29); Park at Blackhawk (4); The Park at Blackhawk (4); Park At Blackhawk (3); Park At Blackhawk Sec 05 (3); Park At Blackhawk Vi Sec 1 The (3); Park At Blackhawk 4 (3); Lakeside At Blackhawk Ii Ph 2 (2); Park At Blackhawk 06 Sec 01 The (2); Park At Blackhawk Sec 06 The (1); Park At Blackhawk Ii Ph 3B Th (1); and 10 more (10 records). Names found by the search but not part of Blackhawk, left out: Meadows Blackhawk Ph 06 (5); Meadows Blackhawk Ph 01 (5); Meadows Blackhawk Ph 05 (4); Fairways Blackhawk Ph 04 (3); Park At Blackhawk Iv Ph 6A (3); Fairways Of Blackhawk Ph 5A (3); Meadows Blackhawk Ph 02 (2); Lakeside At Blackhawk Sec 02 (2); Lakeside at Blackhawk (2); Park At Blackhawk Vii Sec 1A T (2); Ridge at Blackhawk (2); The Groves at Blackhawk (2); Lakeside At Blackhawk 02 Ph 1A (1); Lakeside/Blackhawk Ii Ph I B (1); Ridge at Blackhawk Ph 1 Sec 2 (1); Fairways Blackhawk (1); Park/Blackhawk 6 Sec 5 (1); MEADOWS OF BLACKHAWK PHS 1 (1); Park/Blackhawk Vii Sec 3 (1); Meadows Of Blackhawk Ph 08 (1); Fairways Of Blackhawk Ph 5a (1); Lakeside At Blackhawk (1); Park/Blackhawk 06 Sec U (1); Park/Blackhawk Iv Ph 3 (1); Fairways Blackhawk Ph 1-A (1); Meadows of Blackhawk (1); Park/Blackhawk Iii Sec 2 (1); Lakeside At Blackhawk Sec 04 (1); Ridge/Blackhawk Ph 1 Sec 1 (1); Fairways Blackhawk Ph 03-A (1); Trails at Blackhawk (1).
8.2.2 Study window
In simple terms
The most recent 365 days of closed sales: recent enough to describe today's market, long enough to give each group plenty of sales. The usual window is 180 days; it holds only 24 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from October 26, 2025 to October 25, 2026 inclusive.
The data
109 single-family sales in the window: 46 resale, 63 new construction.
8.2.3 Resale and new construction
In simple terms
A resale home was previously owned. New construction is sold by the builder and behaves differently, so it is kept out of every analysis and reported once on its own.
Statistically
New construction = NewConstructionYN true, or PropertyCondition contains “New Construction” or “Under Construction”. Everything else is resale.
The data
46 resale; 63 new construction.
8.2.4 Sales left out
In simple terms
A few records cannot be used as entered and are left out before any analysis.
Statistically
Excluded: PropertySubType other than Single Family Residence; no OriginalListPrice; LivingArea under 400 SF; seller payments above 10% of ClosePrice (treated as entry errors).
The data
None in this window.
8.2.5 Quartiles and groups
In simple terms
Sales lined up from lowest to highest and cut into four groups of about equal size. Each group is named by its range, for example “Under $395K”.
Statistically
Sort by the slicing variable; cut k sits at round(nk/4), k = 1…3. A cut that would split tied values moves to the nearer edge of the tie. A group under 3 sales merges into its smaller neighbor. Range names use the next group's lowest value (“Under”) and the previous group's highest value (“Over”/“After”).
The data
Quartiles by net sale price: Under $395K: $242,750–$384,750 (12 sales); $395K–$515K: $395,000–$515,000 (11 sales); $520K–$572K: $519,500–$572,000 (11 sales); Over $572K: $575,000–$965,000 (12 sales) Quartiles by living area: Under 2,390 SF: 1,526–2,358 SF (12 sales); 2,390–2,738 SF: 2,390–2,738 SF (11 sales); 2,784–2,996 SF: 2,784–2,996 SF (11 sales); Over 2,996 SF: 3,048–4,689 SF (12 sales) Quartiles by year built: Before 2011: 2000–2008 (11 sales); 2011–2016: 2011–2016 (13 sales); 2017–2019: 2017–2019 (9 sales); After 2019: 2020–2023 (13 sales) View and no view: View: MLS lists a view (6 sales); No view: None or Neighborhood (37 sales)
8.2.6 Average and median
In simple terms
The average adds the values and divides by how many; one very expensive home can pull it up. The median is the middle value, with half above and half below.
Statistically
Mean x̄ = (1/n) Σ xᵢ; median = 50th percentile. Price, price per SF, living area and discount use the mean; days on market and year built use the median (skewed or whole-year values).
The data
Net sale price: average $504,613, median $517,250. Days on market: average 87, median 56: the average is pulled up by a few long listings.
8.2.7 Kruskal–Wallis test
In simple terms
Checks whether a measure really differs across the four groups of a slice. It uses each sale's rank, not its value, so a few extreme sales cannot drive the answer.
Statistically
H = [12/(n(n+1))] Σ Rⱼ²/nⱼ − 3(n+1), compared with χ² on k − 1 degrees of freedom (Kruskal & Wallis, 1952). Effect size ε² = H/(n − 1): ≥ .01 small, ≥ .06 medium, ≥ .14 large (Tomczak & Tomczak, 2014). A slice is tested only when every group has at least 5 sales; smaller groups are described, not tested.
The data
Run on every measure in sections 3–5; each result is in 8.3.
8.2.8 Mann–Whitney U test
In simple terms
The same check when there are only two groups: view against no view.
Statistically
Two-sided U test (Mann & Whitney, 1947). Effect size = rank-biserial correlation |1 − 2U/(n₁n₂)|: ≥ .10 small, ≥ .30 medium, ≥ .50 large (Kerby, 2014; Cohen, 1988).
The data
Run on every measure in section 6; results in 8.3.
8.2.9 Chi-square test
In simple terms
Checks whether a yes/no share (price cut, seller payment, view) differs between groups more than chance would.
Statistically
Pearson χ² on the 2 × k table of counts, no continuity correction (Pearson, 1900). Effect size Cramér's V = √(χ²/n): ≥ .10 small, ≥ .30 medium, ≥ .50 large (Cramér, 1946).
The data
Run on the three shares in every slice; results in 8.3.
8.2.10 Real difference (significance)
In simple terms
“Real difference” means a gap this large would be very unlikely if the groups were really alike. Because many measures are checked in each slice, the bar is set higher than usual.
Statistically
Significant when p < 0.05 ÷ m, where m is the number of measures tested in that slice (Bonferroni; Dunn, 1961). The slicing variable itself differs by design and is not tested.
The data
Quartiles by net sale price: m = 8, threshold p < 0.0063; Quartiles by living area: m = 8, threshold p < 0.0063; Quartiles by year built: m = 8, threshold p < 0.0063; View and no view: m = 8, threshold p < 0.0063
8.2.11 Size of a difference
In simple terms
A difference can be real but small. The size word (small, medium, large) says how much the groups pull apart.
Statistically
ε² for Kruskal–Wallis, rank-biserial r for Mann–Whitney, Cramér's V for chi-square, with the thresholds above; below the small threshold the size is “negligible”.
The data
6 real differences across the four slices; sizes are listed in 8.3.
8.2.12 Rounding in the text
In simple terms
Headings and sentences round figures so they read easily; the tables at the end of each section give them in full.
Statistically
Prices in headings round to the nearest $1K; price per SF and days on market to the nearest whole number; living area to the nearest 10 SF; shares and percentage gaps to whole percents.
The data
Days on market is always shown in days.
8.3 Test results
Every test behind every gold box. Statistic, degrees of freedom (df), p-value, the threshold it must beat, and the size of the difference.
8.3.1 Quartiles by net sale price
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net price per SF
Kruskal–Wallis
H = 3.65
3
0.3013
p < 0.0063
Unclear
ε² = 0.081
medium
Living area
Kruskal–Wallis
H = 31.46
3
< 0.0001
p < 0.0063
Yes
ε² = 0.699
large
Year built
Kruskal–Wallis
H = 17.20
3
0.0006
p < 0.0063
Yes
ε² = 0.382
large
Days on market
Kruskal–Wallis
H = 0.95
3
0.8122
p < 0.0063
Unclear
ε² = 0.021
small
Discount from original list
Kruskal–Wallis
H = 2.39
3
0.4946
p < 0.0063
Unclear
ε² = 0.053
small
Price cut before sale
Chi-square
χ² = 6.63
3
0.0846
p < 0.0063
Unclear
Cramér’s V = 0.380
medium
Seller paid closing costs or repairs
Chi-square
χ² = 0.88
3
0.8308
p < 0.0063
Unclear
Cramér’s V = 0.138
small
Has a view
Chi-square
χ² = 0.78
3
0.8540
p < 0.0063
Unclear
Cramér’s V = 0.130
small
8.3.2 Quartiles by living area
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 31.74
3
< 0.0001
p < 0.0063
Yes
ε² = 0.705
large
Net price per SF
Kruskal–Wallis
H = 5.25
3
0.1545
p < 0.0063
Unclear
ε² = 0.117
medium
Year built
Kruskal–Wallis
H = 4.53
3
0.2093
p < 0.0063
Unclear
ε² = 0.101
medium
Days on market
Kruskal–Wallis
H = 1.28
3
0.7342
p < 0.0063
Unclear
ε² = 0.028
small
Discount from original list
Kruskal–Wallis
H = 3.66
3
0.3012
p < 0.0063
Unclear
ε² = 0.081
medium
Price cut before sale
Chi-square
χ² = 9.44
3
0.0240
p < 0.0063
Unclear
Cramér’s V = 0.453
medium
Seller paid closing costs or repairs
Chi-square
χ² = 1.35
3
0.7181
p < 0.0063
Unclear
Cramér’s V = 0.171
small
Has a view
Chi-square
χ² = 2.05
3
0.5620
p < 0.0063
Unclear
Cramér’s V = 0.211
small
8.3.3 Quartiles by year built
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 18.21
3
0.0004
p < 0.0063
Yes
ε² = 0.405
large
Net price per SF
Kruskal–Wallis
H = 17.34
3
0.0006
p < 0.0063
Yes
ε² = 0.385
large
Living area
Kruskal–Wallis
H = 15.32
3
0.0016
p < 0.0063
Yes
ε² = 0.340
large
Days on market
Kruskal–Wallis
H = 1.05
3
0.7901
p < 0.0063
Unclear
ε² = 0.023
small
Discount from original list
Kruskal–Wallis
H = 1.43
3
0.6980
p < 0.0063
Unclear
ε² = 0.032
small
Price cut before sale
Chi-square
χ² = 1.79
3
0.6181
p < 0.0063
Unclear
Cramér’s V = 0.197
small
Seller paid closing costs or repairs
Chi-square
χ² = 1.12
3
0.7727
p < 0.0063
Unclear
Cramér’s V = 0.156
small
Has a view
Chi-square
χ² = 0.68
3
0.8787
p < 0.0063
Unclear
Cramér’s V = 0.121
small
8.3.4 View and no view
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Mann–Whitney U
U = 95.50
—
0.5990
p < 0.0063
Unclear
rank-biserial r = 0.140
small
Net price per SF
Mann–Whitney U
U = 110.00
—
0.9864
p < 0.0063
Unclear
rank-biserial r = 0.009
negligible
Living area
Mann–Whitney U
U = 88.00
—
0.4401
p < 0.0063
Unclear
rank-biserial r = 0.207
small
Year built
Mann–Whitney U
U = 88.50
—
0.4391
p < 0.0063
Unclear
rank-biserial r = 0.203
small
Days on market
Mann–Whitney U
U = 99.00
—
0.6869
p < 0.0063
Unclear
rank-biserial r = 0.108
small
Discount from original list
Mann–Whitney U
U = 140.00
—
0.3266
p < 0.0063
Unclear
rank-biserial r = 0.261
small
Price cut before sale
Chi-square
χ² = 1.82
1
0.1775
p < 0.0063
Unclear
Cramér’s V = 0.206
small
Seller paid closing costs or repairs
Chi-square
χ² = 0.11
1
0.7377
p < 0.0063
Unclear
Cramér’s V = 0.051
negligible
8.4 Data notes
Left out of the analysis: 63 new-construction sales (basic statistics only, section 7); nothing else. Statistics: Python, NumPy 2.5.3, SciPy 1.18.1.
8.5 References
Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Erlbaum.
Cramér, H. (1946). Mathematical Methods of Statistics. Princeton University Press.
Dunn, O. J. (1961). Multiple comparisons among means. JASA, 56(293), 52–64.
Kerby, D. S. (2014). The simple difference formula: an approach to teaching nonparametric correlation. Comprehensive Psychology, 3, 11.IT.3.1.
Kruskal, W. H., & Wallis, W. A. (1952). Use of ranks in one-criterion variance analysis. JASA, 47(260), 583–621.
Mann, H. B., & Whitney, D. R. (1947). On a test of whether one of two random variables is stochastically larger than the other. Annals of Mathematical Statistics, 18(1), 50–60.
Pearson, K. (1900). On the criterion that a given system of deviations… Philosophical Magazine, 50(302), 157–175.
Tomczak, M., & Tomczak, E. (2014). The need to report effect size estimates revisited. Trends in Sport Sciences, 21(1), 19–25.