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
52
single-family resale homes
Median net sale price
$257,625
average $256,854
Median net price per SF
$148
average $147
Median days on market
38 days
average 61 days
1. SummaryResale homes · 52 sales · October 26, 2025 – October 25, 2026
This study looks at the 52 resale homes sold in Shadow Creek in the 365 days to October 25, 2026. A full year is used because only 29 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 sold52 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 · 52 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: no measure differs enough between the groups to rule out chance.
3.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
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 $240K
$240K–$258K
$258K–$279K
Over $279K
Real difference?
Net price per SF
$134 per SF
$150 per SF
$157 per SF
$147 per SF
unclear
Living area
1,653 SF
1,696 SF
1,701 SF
2,080 SF
unclear
Year built
2008
2017
2013
2016
unclear
Days on market
64 days
42 days
56 days
32 days
unclear
Discount from original list
14.8%
7.3%
6.0%
6.1%
unclear
Price cut before sale
83%
64%
42%
43%
unclear
Seller paid closing costs or repairs
58%
86%
75%
50%
unclear
Has a view
25%
0%
17%
14%
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 $147 per SF for homes over $279K and $134 per SF for homes under $240K. It does not move in a straight line; homes $258K–$279K are highest. Defined in 8.1.2.
– No clear difference · could be chance
3.4 Living area: no clear difference
The average is 2,080 SF for homes over $279K and 1,653 SF for homes under $240K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
– No clear difference · could be chance
3.5 Year built: no clear difference
The median is 2016 for homes over $279K and 2008 for homes under $240K. It does not move in a straight line; homes $240K–$258K are highest. Defined in 8.1.4.
– No clear difference · could be chance
3.6 Days on market: no clear difference
The median is 32 days for homes over $279K and 64 days for homes under $240K. It does not move in a straight line; homes under $240K 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 6.1% for homes over $279K and 14.8% for homes under $240K. It does not move in a straight line; homes under $240K 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.
43% of homes over $279K had a price cut before sale, against 83% of homes under $240K. Defined in 8.1.7.
50% of homes over $279K had the seller pay closing costs or repairs, against 58% of homes under $240K. Defined in 8.1.8.
14% of homes over $279K have a view, against 25% of homes under $240K. 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 $240K12 sales
$240K–$258K14 sales
$258K–$279K12 sales
Over $279K14 sales
All52 sales
Real difference?
Net sale price average
$211,524
$248,590
$263,941
$297,898
$256,854
by design
Net price per SF average
$134
$150
$157
$147
$147
unclear
Living area average
1,653
1,696
1,701
2,080
1,791
unclear
Year built median
2008
2017
2013
2016
2015
unclear
3.10 The numbers: selling
Under $240K12 sales
$240K–$258K14 sales
$258K–$279K12 sales
Over $279K14 sales
All52 sales
Real difference?
Days on market median
64
42
56
32
38
unclear
Discount from original list average
14.8%
7.3%
6.0%
6.1%
8.4%
unclear
Price cut before sale
83%
64%
42%
43%
58%
unclear
Seller paid closing costs or repairs
58%
86%
75%
50%
67%
unclear
Has a view
25%
0%
17%
14%
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 · 52 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 1,931 SF sell for about $53 per SF (30%) less than homes under 1,658 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 1,658 SF1,658–1,700 SF1,713–1,931 SFOver 1,931 SF
Larger homes Over 1,931 SF
Sell for less per square foot.
Smaller homes Under 1,658 SF
Sell for more per square foot.
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 1,658 SF
1,658–1,700 SF
1,713–1,931 SF
Over 1,931 SF
Real difference?
Net sale price
$241K
$253K
$260K
$273K
unclear
Net price per SF
$176 per SFHighest
$150 per SF
$141 per SF
$123 per SFLowest
✓ large
Year built
2016
2016
2010
2015
unclear
Days on market
44 days
28 days
56 days
34 days
unclear
Discount from original list
8.1%
8.5%
7.6%
9.3%
unclear
Price cut before sale
50%
58%
58%
64%
unclear
Seller paid closing costs or repairs
71%
67%
67%
64%
unclear
Has a view
14%
8%
25%
7%
unclear
4.3 Net sale price: no clear difference
The average is $273K for homes over 1,931 SF and $241K for homes under 1,658 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
– No clear difference · could be chance
4.4 Homes over 1,931 SF sell for about $53 per SF (30%) less than homes under 1,658 SF
The average is $123 per SF for homes over 1,931 SF and $176 per SF for homes under 1,658 SF. It falls step by step from the lowest range to the highest. Defined in 8.1.2.
✓ Real difference · large
4.5 Year built: no clear difference
The median is 2015 for homes over 1,931 SF and 2016 for homes under 1,658 SF. It does not move in a straight line; homes 1,658–1,700 SF are highest. Defined in 8.1.4.
– No clear difference · could be chance
4.6 Days on market: no clear difference
The median is 34 days for homes over 1,931 SF and 44 days for homes under 1,658 SF. It does not move in a straight line; homes 1,713–1,931 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 1,931 SF and 8.1% for homes under 1,658 SF. It does not move in a straight line; homes over 1,931 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.
64% of homes over 1,931 SF had a price cut before sale, against 50% of homes under 1,658 SF. Defined in 8.1.7.
64% of homes over 1,931 SF had the seller pay closing costs or repairs, against 71% of homes under 1,658 SF. Defined in 8.1.8.
7% of homes over 1,931 SF have a view, against 14% of homes under 1,658 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 1,658 SF14 sales
1,658–1,700 SF12 sales
1,713–1,931 SF12 sales
Over 1,931 SF14 sales
All52 sales
Real difference?
Net sale price average
$241,278
$252,588
$260,490
$272,970
$256,854
unclear
Net price per SF average
$176
$150
$141
$123
$147
✓ large
Living area average
1,374
1,684
1,858
2,242
1,791
by design
Year built median
2016
2016
2010
2015
2015
unclear
4.10 The numbers: selling
Under 1,658 SF14 sales
1,658–1,700 SF12 sales
1,713–1,931 SF12 sales
Over 1,931 SF14 sales
All52 sales
Real difference?
Days on market median
44
28
56
34
38
unclear
Discount from original list average
8.1%
8.5%
7.6%
9.3%
8.4%
unclear
Price cut before sale
50%
58%
58%
64%
58%
unclear
Seller paid closing costs or repairs
71%
67%
67%
64%
67%
unclear
Has a view
14%
8%
25%
7%
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 · 52 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: no measure differs enough between the groups to rule out chance.
5.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
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 2008
2008–2014
2015–2016
After 2016
Real difference?
Net sale price
$245K
$256K
$267K
$259K
unclear
Net price per SF
$138 per SF
$145 per SF
$155 per SF
$150 per SF
unclear
Living area
1,815 SF
1,846 SF
1,756 SF
1,757 SF
unclear
Days on market
66 days
24 days
34 days
34 days
unclear
Discount from original list
12.1%
7.6%
7.4%
7.0%
unclear
Price cut before sale
50%
58%
62%
60%
unclear
Seller paid closing costs or repairs
50%
75%
54%
87%
unclear
Has a view
17%
0%
31%
7%
unclear
5.3 Net sale price: no clear difference
The average is $259K for homes built after 2016 and $245K for homes built before 2008. It does not move in a straight line; homes built 2015–2016 are highest. Defined in 8.1.1.
– No clear difference · could be chance
5.4 Net price per SF: no clear difference
The average is $150 per SF for homes built after 2016 and $138 per SF for homes built before 2008. It does not move in a straight line; homes built 2015–2016 are highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Living area: no clear difference
The average is 1,757 SF for homes built after 2016 and 1,815 SF for homes built before 2008. It does not move in a straight line; homes built 2008–2014 are highest. Defined in 8.1.3.
– No clear difference · could be chance
5.6 Days on market: no clear difference
The median is 34 days for homes built after 2016 and 66 days for homes built before 2008. It does not move in a straight line; homes built before 2008 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 2016 and 12.1% for homes built before 2008. It falls step by step from the lowest range to the 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.
60% of homes built after 2016 had a price cut before sale, against 50% of homes built before 2008. Defined in 8.1.7.
87% of homes built after 2016 had the seller pay closing costs or repairs, against 50% of homes built before 2008. Defined in 8.1.8.
7% of homes built after 2016 have a view, against 17% of homes built before 2008. 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 200812 sales
2008–201412 sales
2015–201613 sales
After 201615 sales
All52 sales
Real difference?
Net sale price average
$245,398
$255,696
$266,594
$258,504
$256,854
unclear
Net price per SF average
$138
$145
$155
$150
$147
unclear
Living area average
1,815
1,846
1,756
1,757
1,791
unclear
Year built median
2006
2013
2016
2017
2015
by design
5.10 The numbers: selling
Before 200812 sales
2008–201412 sales
2015–201613 sales
After 201615 sales
All52 sales
Real difference?
Days on market median
66
24
34
34
38
unclear
Discount from original list average
12.1%
7.6%
7.4%
7.0%
8.4%
unclear
Price cut before sale
50%
58%
62%
60%
58%
unclear
Seller paid closing costs or repairs
50%
75%
54%
87%
67%
unclear
Has a view
17%
0%
31%
7%
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 · 52 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.
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
$256K
$257K
unclear
Net price per SF
$148 per SF
$147 per SF
unclear
Living area
1,744 SF
1,798 SF
unclear
Year built
2015
2015
unclear
Days on market
52 days
34 days
unclear
Discount from original list
8.3%
8.5%
unclear
Price cut before sale
57%
58%
unclear
Seller paid closing costs or repairs
71%
67%
unclear
6.3 Net sale price: no clear difference
The average is $256K for homes with a view and $257K 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 $148 per SF for homes with a view and $147 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 1,744 SF for homes with a view and 1,798 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 2015 for homes with a view and 2015 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 34 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 8.3% for homes with a view and 8.5% 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.
57% of homes with a view had a price cut before sale, against 58% of homes without a view. Defined in 8.1.7.
71% of homes with a view had the seller pay closing costs or repairs, against 67% 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
View7 sales
No view45 sales
All52 sales
Real difference?
Net sale price average
$256,044
$256,980
$256,854
unclear
Net price per SF average
$148
$147
$147
unclear
Living area average
1,744
1,798
1,791
unclear
Year built median
2015
2015
2015
unclear
6.11 The numbers: selling
View7 sales
No view45 sales
All52 sales
Real difference?
Days on market median
52
34
38
unclear
Discount from original list average
8.3%
8.5%
8.4%
unclear
Price cut before sale
57%
58%
58%
unclear
Seller paid closing costs or repairs
71%
67%
67%
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 · 0 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: 0 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 Shadow Creek.
No new-construction sales were reported in ABOR MLS in this window.
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
52 resale sales. Average $256,854; median $257,625; standard deviation $34,987; middle half (25th–75th percentile) $239,900–$280,000; lowest $169,000, highest $349,900. 35 sales had a seller payment; their median payment was $8,255.
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
52 resale sales. Average $147; median $148; standard deviation $27; middle half (25th–75th percentile) $133–$165; lowest $82, highest $205.
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
52 resale sales. Average 1,791; median 1,706; standard deviation 364; middle half (25th–75th percentile) 1,441–2,042; lowest 1,243, highest 3,126.
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
52 resale sales. Average 2013; median 2015; standard deviation 4; middle half (25th–75th percentile) 2008–2017; lowest 2006, highest 2018.
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
52 resale sales. Average 61; median 38; standard deviation 62; middle half (25th–75th percentile) 17–71; lowest 0, highest 231. 1 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
52 resale sales. Average 8.4%; median 6.1%; standard deviation 7.0%; middle half (25th–75th percentile) 3.3%–11.9%; lowest −0.2%, highest 32.6%. 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
30 of 52 resale sales (57.7%).
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
35 of 52 resale sales (67.3%).
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
7 sales with a view, 45 without, 0 unclassified. Most common View entries: None 35, Neighborhood 13, Park/Greenbelt 6, Skyline 1, City 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 = Buda, SubdivisionName contains any of “shadow creek” (case-insensitive). A record is kept when its subdivision name belongs to the Shadow Creek family, the same rule comparable sales use.
The data
Pulled October 26, 2026: 53 closed Shadow Creek records over the prior year, in ZIP 78610. 23 subdivision spellings kept, the most common: Shadow Creek Ph 6 Sec 2 (6); Shadow Creek Ph Five Sec One (5); Shadow Creek Ph Eight Sec One (4); Shadow Creek Ph Nine Sec Two (4); Shadow Creek Ph 4 Sec 2 (3); Shadow Creek Ph Eight Sec Two (3); Shadow Creek Ph Seven Sec Three (3); Shadow Creek Ph 1 Sec 2 (3); Shadow Creek Ph 1 Sec 1 (2); SHADOW CREEK PHASE FIVE SEC ONE (2); Shadow Creek Ph 2 Sec 3 (2); Shadow Creek (2); and 11 more (14 records). Names found by the search but not part of Shadow Creek, left out: Meadows at Shadow Creek (3).
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 29 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from October 26, 2025 to October 25, 2026 inclusive.
The data
52 single-family sales in the window: 52 resale, 0 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
52 resale; 0 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
1 sale(s) with concessions above 10% of price
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 $240K”.
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 $240K: $169,000–$237,820 (12 sales); $240K–$258K: $239,900–$257,500 (14 sales); $258K–$279K: $257,750–$279,470 (12 sales); Over $279K: $280,000–$349,900 (14 sales) Quartiles by living area: Under 1,658 SF: 1,243–1,441 SF (14 sales); 1,658–1,700 SF: 1,658–1,700 SF (12 sales); 1,713–1,931 SF: 1,713–1,931 SF (12 sales); Over 1,931 SF: 2,042–3,126 SF (14 sales) Quartiles by year built: Before 2008: 2006–2007 (12 sales); 2008–2014: 2008–2014 (12 sales); 2015–2016: 2015–2016 (13 sales); After 2016: 2017–2018 (15 sales) View and no view: View: MLS lists a view (7 sales); No view: None or Neighborhood (45 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 $256,854, median $257,625. Days on market: average 61, median 38: 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
1 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 = 3.06
3
0.3830
p < 0.0063
Unclear
ε² = 0.060
small
Living area
Kruskal–Wallis
H = 9.82
3
0.0202
p < 0.0063
Unclear
ε² = 0.192
large
Year built
Kruskal–Wallis
H = 8.22
3
0.0416
p < 0.0063
Unclear
ε² = 0.161
large
Days on market
Kruskal–Wallis
H = 5.44
3
0.1424
p < 0.0063
Unclear
ε² = 0.107
medium
Discount from original list
Kruskal–Wallis
H = 9.49
3
0.0234
p < 0.0063
Unclear
ε² = 0.186
large
Price cut before sale
Chi-square
χ² = 6.01
3
0.1113
p < 0.0063
Unclear
Cramér’s V = 0.340
medium
Seller paid closing costs or repairs
Chi-square
χ² = 4.82
3
0.1852
p < 0.0063
Unclear
Cramér’s V = 0.305
medium
Has a view
Chi-square
χ² = 3.66
3
0.3002
p < 0.0063
Unclear
Cramér’s V = 0.265
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 = 7.90
3
0.0480
p < 0.0063
Unclear
ε² = 0.155
large
Net price per SF
Kruskal–Wallis
H = 29.84
3
< 0.0001
p < 0.0063
Yes
ε² = 0.585
large
Year built
Kruskal–Wallis
H = 3.87
3
0.2760
p < 0.0063
Unclear
ε² = 0.076
medium
Days on market
Kruskal–Wallis
H = 1.11
3
0.7754
p < 0.0063
Unclear
ε² = 0.022
small
Discount from original list
Kruskal–Wallis
H = 0.18
3
0.9815
p < 0.0063
Unclear
ε² = 0.003
negligible
Price cut before sale
Chi-square
χ² = 0.59
3
0.8981
p < 0.0063
Unclear
Cramér’s V = 0.107
small
Seller paid closing costs or repairs
Chi-square
χ² = 0.17
3
0.9822
p < 0.0063
Unclear
Cramér’s V = 0.057
negligible
Has a view
Chi-square
χ² = 2.13
3
0.5458
p < 0.0063
Unclear
Cramér’s V = 0.202
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 = 2.00
3
0.5727
p < 0.0063
Unclear
ε² = 0.039
small
Net price per SF
Kruskal–Wallis
H = 1.60
3
0.6590
p < 0.0063
Unclear
ε² = 0.031
small
Living area
Kruskal–Wallis
H = 0.19
3
0.9790
p < 0.0063
Unclear
ε² = 0.004
negligible
Days on market
Kruskal–Wallis
H = 4.60
3
0.2032
p < 0.0063
Unclear
ε² = 0.090
medium
Discount from original list
Kruskal–Wallis
H = 1.67
3
0.6437
p < 0.0063
Unclear
ε² = 0.033
small
Price cut before sale
Chi-square
χ² = 0.40
3
0.9393
p < 0.0063
Unclear
Cramér’s V = 0.088
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 5.58
3
0.1338
p < 0.0063
Unclear
Cramér’s V = 0.328
medium
Has a view
Chi-square
χ² = 5.91
3
0.1161
p < 0.0063
Unclear
Cramér’s V = 0.337
medium
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 = 157.00
—
1.0000
p < 0.0063
Unclear
rank-biserial r = 0.003
negligible
Net price per SF
Mann–Whitney U
U = 167.00
—
0.8134
p < 0.0063
Unclear
rank-biserial r = 0.060
negligible
Living area
Mann–Whitney U
U = 157.50
—
1.0000
p < 0.0063
Unclear
rank-biserial r = 0.000
negligible
Year built
Mann–Whitney U
U = 145.50
—
0.7555
p < 0.0063
Unclear
rank-biserial r = 0.076
negligible
Days on market
Mann–Whitney U
U = 165.50
—
0.8405
p < 0.0063
Unclear
rank-biserial r = 0.051
negligible
Discount from original list
Mann–Whitney U
U = 170.00
—
0.7529
p < 0.0063
Unclear
rank-biserial r = 0.079
negligible
Price cut before sale
Chi-square
χ² = 0.00
1
0.9748
p < 0.0063
Unclear
Cramér’s V = 0.004
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 0.06
1
0.8027
p < 0.0063
Unclear
Cramér’s V = 0.035
negligible
8.4 Data notes
Left out of the analysis: 0 new-construction sales (basic statistics only, section 7); 1 sale(s) with concessions above 10% of price. 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.