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
27
single-family resale homes
Median net sale price
$416,000
average $421,272
Median net price per SF
$183
average $188
Median days on market
44 days
average 70 days
1. SummaryResale homes · 27 sales · November 8, 2025 – November 7, 2026
This study looks at the 27 resale homes sold in Big Sky Ranch in the 365 days to November 7, 2026. A full year is used because only 14 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 sold27 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 · 27 sales · November 8, 2025 – November 7, 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 $470K are about 1,110 SF (61%) larger than homes under $360K.
3.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under $360K$360K–$416K$420K–$470KOver $470K
Higher-priced homes Over $470K
Are much larger.
Lower-priced homes Under $360K
Are much smaller.
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 $360K
$360K–$416K
$420K–$470K
Over $470K
Real difference?
Net price per SF
$189 per SF
$191 per SF
$193 per SF
$178 per SF
unclear
Living area
1,828 SFSmallest
1,988 SF
2,337 SF
2,936 SFLargest
✓ large
Year built
2022
2020
2023
2023
unclear
Days on market
44 days
30 days
47 days
48 days
unclear
Discount from original list
5.2%
4.6%
5.6%
5.5%
unclear
Price cut before sale
50%
50%
50%
100%
unclear
Seller paid closing costs or repairs
83%
50%
50%
71%
unclear
Has a view
17%
12%
33%
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 $178 per SF for homes over $470K and $189 per SF for homes under $360K. It does not move in a straight line; homes $420K–$470K are highest. Defined in 8.1.2.
– No clear difference · could be chance
3.4 Homes over $470K are about 1,110 SF (61%) larger than homes under $360K
The average is 2,936 SF for homes over $470K and 1,828 SF for homes under $360K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
✓ Real difference · large
3.5 Year built: no clear difference
The median is 2023 for homes over $470K and 2022 for homes under $360K. It does not move in a straight line; homes $420K–$470K are highest. Defined in 8.1.4.
– No clear difference · could be chance
3.6 Days on market: no clear difference
The median is 48 days for homes over $470K and 44 days for homes under $360K. It does not move in a straight line; homes over $470K 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 5.5% for homes over $470K and 5.2% for homes under $360K. It does not move in a straight line; homes $420K–$470K 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.
100% of homes over $470K had a price cut before sale, against 50% of homes under $360K. Defined in 8.1.7.
71% of homes over $470K had the seller pay closing costs or repairs, against 83% of homes under $360K. Defined in 8.1.8.
14% of homes over $470K have a view, against 17% of homes under $360K. 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 $360K6 sales
$360K–$416K8 sales
$420K–$470K6 sales
Over $470K7 sales
All27 sales
Real difference?
Net sale price average
$343,342
$376,474
$444,000
$519,785
$421,272
by design
Net price per SF average
$189
$191
$193
$178
$188
unclear
Living area average
1,828
1,988
2,337
2,936
2,276
✓ large
Year built median
2022
2020
2023
2023
2022
unclear
3.10 The numbers: selling
Under $360K6 sales
$360K–$416K8 sales
$420K–$470K6 sales
Over $470K7 sales
All27 sales
Real difference?
Days on market median
44
30
47
48
44
unclear
Discount from original list average
5.2%
4.6%
5.6%
5.5%
5.2%
unclear
Price cut before sale
50%
50%
50%
100%
63%
unclear
Seller paid closing costs or repairs
83%
50%
50%
71%
63%
unclear
Has a view
17%
12%
33%
14%
19%
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 · 27 sales · November 8, 2025 – November 7, 2026
Sales ranked by living area and cut into four equal groups, from the smallest homes to the largest.
Bottom line
Homes over 2,585 SF sell for about $156K (44%) more than homes under 1,880 SF.
Homes over 2,585 SF sell for about $32 per SF (16%) less than homes under 1,880 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 1,880 SF1,880–2,174 SF2,213–2,585 SFOver 2,585 SF
Larger homes Over 2,585 SF
Sell for much more.
Sell for less per square foot.
Smaller homes Under 1,880 SF
Sell for much less.
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 1,880 SF
1,880–2,174 SF
2,213–2,585 SF
Over 2,585 SF
Real difference?
Net sale price
$357KLowest
$386K
$431K
$513KHighest
✓ large
Net price per SF
$203 per SFHighest
$196 per SF
$180 per SF
$171 per SFLowest
✓ large
Year built
2022
2021
2020
2023
unclear
Days on market
18 days
40 days
43 days
70 days
unclear
Discount from original list
3.5%
5.7%
4.8%
6.7%
unclear
Price cut before sale
29%
43%
83%
100%
unclear
Seller paid closing costs or repairs
43%
71%
83%
57%
unclear
Has a view
14%
29%
0%
29%
unclear
4.3 Homes over 2,585 SF sell for about $156K (44%) more than homes under 1,880 SF
The average is $513K for homes over 2,585 SF and $357K for homes under 1,880 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
✓ Real difference · large
4.4 Homes over 2,585 SF sell for about $32 per SF (16%) less than homes under 1,880 SF
The average is $171 per SF for homes over 2,585 SF and $203 per SF for homes under 1,880 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 2023 for homes over 2,585 SF and 2022 for homes under 1,880 SF. It does not move in a straight line; homes over 2,585 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 70 days for homes over 2,585 SF and 18 days for homes under 1,880 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.5.
– No clear difference · could be chance
4.7 Discount from original list: no clear difference
The average is 6.7% for homes over 2,585 SF and 3.5% for homes under 1,880 SF. It does not move in a straight line; homes over 2,585 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.
100% of homes over 2,585 SF had a price cut before sale, against 29% of homes under 1,880 SF. Defined in 8.1.7.
57% of homes over 2,585 SF had the seller pay closing costs or repairs, against 43% of homes under 1,880 SF. Defined in 8.1.8.
29% of homes over 2,585 SF have a view, against 14% of homes under 1,880 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 1,880 SF7 sales
1,880–2,174 SF7 sales
2,213–2,585 SF6 sales
Over 2,585 SF7 sales
All27 sales
Real difference?
Net sale price average
$356,573
$386,314
$430,522
$512,999
$421,272
✓ large
Net price per SF average
$203
$196
$180
$171
$188
✓ large
Living area average
1,758
1,973
2,390
2,999
2,276
by design
Year built median
2022
2021
2020
2023
2022
unclear
4.10 The numbers: selling
Under 1,880 SF7 sales
1,880–2,174 SF7 sales
2,213–2,585 SF6 sales
Over 2,585 SF7 sales
All27 sales
Real difference?
Days on market median
18
40
43
70
44
unclear
Discount from original list average
3.5%
5.7%
4.8%
6.7%
5.2%
unclear
Price cut before sale
29%
43%
83%
100%
63%
unclear
Seller paid closing costs or repairs
43%
71%
83%
57%
63%
unclear
Has a view
14%
29%
0%
29%
19%
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. Groups by year builtResale homes · 27 sales · November 8, 2025 – November 7, 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. Only 3 groups are shown: homes here share a few year built values, and no group may hold fewer than 3 sales.
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 2021
2021–2022
After 2022
Real difference?
Net sale price
$404K
$377K
$470K
unclear
Net price per SF
$187 per SF
$198 per SF
$181 per SF
unclear
Living area
2,171 SF
1,908 SF
2,638 SF
unclear
Days on market
37 days
47 days
58 days
unclear
Discount from original list
4.7%
5.5%
5.4%
unclear
Price cut before sale
60%
57%
70%
unclear
Seller paid closing costs or repairs
60%
57%
70%
unclear
Has a view
10%
0%
40%
unclear
5.3 Net sale price: no clear difference
The average is $470K for homes built after 2022 and $404K for homes built before 2021. It does not move in a straight line; homes built after 2022 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 $181 per SF for homes built after 2022 and $187 per SF for homes built before 2021. It does not move in a straight line; homes built 2021–2022 are highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Living area: no clear difference
The average is 2,638 SF for homes built after 2022 and 2,171 SF for homes built before 2021. It does not move in a straight line; homes built after 2022 are highest. Defined in 8.1.3.
– No clear difference · could be chance
5.6 Days on market: no clear difference
The median is 58 days for homes built after 2022 and 37 days for homes built before 2021. It rises step by step from the lowest range to the highest. Defined in 8.1.5.
– No clear difference · could be chance
5.7 Discount from original list: no clear difference
The average is 5.4% for homes built after 2022 and 4.7% for homes built before 2021. It does not move in a straight line; homes built 2021–2022 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.
70% of homes built after 2022 had a price cut before sale, against 60% of homes built before 2021. Defined in 8.1.7.
70% of homes built after 2022 had the seller pay closing costs or repairs, against 60% of homes built before 2021. Defined in 8.1.8.
40% of homes built after 2022 have a view, against 10% of homes built before 2021. 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 202110 sales
2021–20227 sales
After 202210 sales
All27 sales
Real difference?
Net sale price average
$403,658
$376,824
$470,000
$421,272
unclear
Net price per SF average
$187
$198
$181
$188
unclear
Living area average
2,171
1,908
2,638
2,276
unclear
Year built median
2020
2022
2023
2022
by design
5.10 The numbers: selling
Before 202110 sales
2021–20227 sales
After 202210 sales
All27 sales
Real difference?
Days on market median
37
47
58
44
unclear
Discount from original list average
4.7%
5.5%
5.4%
5.2%
unclear
Price cut before sale
60%
57%
70%
63%
unclear
Seller paid closing costs or repairs
60%
57%
70%
63%
unclear
Has a view
10%
0%
40%
19%
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 · 27 sales · November 8, 2025 – November 7, 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. 4 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
$416K
$425K
unclear
Net price per SF
$187 per SF
$189 per SF
unclear
Living area
2,257 SF
2,281 SF
unclear
Year built
2023
2022
unclear
Days on market
40 days
46 days
unclear
Discount from original list
5.0%
5.1%
unclear
Price cut before sale
60%
67%
unclear
Seller paid closing costs or repairs
60%
67%
unclear
6.3 Net sale price: no clear difference
The average is $416K for homes with a view and $425K 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 $189 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 2,257 SF for homes with a view and 2,281 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 2023 for homes with a view and 2022 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 40 days for homes with a view and 46 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 5.0% for homes with a view and 5.1% 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.
60% of homes with a view had a price cut before sale, against 67% of homes without a view. Defined in 8.1.7.
60% 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
View5 sales
No view18 sales
All23 sales
Real difference?
Net sale price average
$415,912
$425,460
$423,384
unclear
Net price per SF average
$187
$189
$189
unclear
Living area average
2,257
2,281
2,276
unclear
Year built median
2023
2022
2022
unclear
6.11 The numbers: selling
View5 sales
No view18 sales
All23 sales
Real difference?
Days on market median
40
46
44
unclear
Discount from original list average
5.0%
5.1%
5.1%
unclear
Price cut before sale
60%
67%
65%
unclear
Seller paid closing costs or repairs
60%
67%
65%
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 · 49 sales · November 8, 2025 – November 7, 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: 49 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 Big Sky Ranch.
Measure
Average
Median
Sales
49
Net sale price
$477,809
$470,000
Net price per SF
$197
$204
Living area (SF)
2,489
2,585
Days on market
53
38
Discount from original list
8.3%
7.7%
Price cut before sale
45% of sales
Seller paid closing costs or repairs
94% of sales
Year built
2025–2026
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
27 resale sales. Average $421,272; median $416,000; standard deviation $74,719; middle half (25th–75th percentile) $360,000–$471,950; lowest $311,850, highest $598,500. 17 sales had a seller payment; their median payment was $7,500.
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
27 resale sales. Average $188; median $183; standard deviation $18; middle half (25th–75th percentile) $172–$198; lowest $164, highest $226.
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
27 resale sales. Average 2,276; median 2,174; standard deviation 524; middle half (25th–75th percentile) 1,878–2,586; lowest 1,630, highest 3,369.
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
27 resale sales. Average 2022; median 2022; standard deviation 1; middle half (25th–75th percentile) 2020–2023; lowest 2020, highest 2024.
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
27 resale sales. Average 70; median 44; standard deviation 84; middle half (25th–75th percentile) 19–74; lowest 9, highest 397. 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
27 resale sales. Average 5.2%; median 4.6%; standard deviation 3.2%; middle half (25th–75th percentile) 3.1%–7.5%; lowest 0.0%, highest 11.3%. 0 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
17 of 27 resale sales (63.0%).
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
17 of 27 resale sales (63.0%).
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
5 sales with a view, 18 without, 4 unclassified. Most common View entries: Neighborhood 9, None 9, See Remarks 6, Hill Country 4, Park/Greenbelt 2, Trees/Woods 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
ABOR MLS via secure APIs, read from ALEX's copy of the MLS (refreshed every 15 minutes; this pull as of 2026-11-08 13:00 UTC), every field. Filter: StandardStatus = Closed, PropertyType = Residential, City = Dripping Springs, SubdivisionName contains any of “big sky ranch” (case-insensitive). A record is kept when its subdivision name belongs to the Big Sky Ranch family, the same rule comparable sales use.
The data
Pulled November 8, 2026: 76 closed Big Sky Ranch records over the prior year, in ZIP 78620. 8 subdivision spellings kept: Big Sky Ranch (59); Big Sky Ranch Ph 1 At Dripping Spgs (6); Big Sky Ranch Ph 3 At Dripping Spgs (4); Big Sky Ranch Ph 2 At Dripping Spgs (3); Big Sky Ranch Ph 4 At Dripping Spgs (1); Big Sky Ranch Ph One At Dripping Spgs (1); Big Sky Ranch Ph 1 (1); BIG SKY RANCH PHASE 2 AT DRIPPING SPRING (1). No other names were found by the search.
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 14 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from November 8, 2025 to November 7, 2026 inclusive.
The data
76 single-family sales in the window: 27 resale, 49 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
27 resale; 49 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 $360K”.
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 $360K: $311,850–$355,000 (6 sales); $360K–$416K: $360,000–$416,000 (8 sales); $420K–$470K: $420,000–$470,000 (6 sales); Over $470K: $473,900–$598,500 (7 sales) Quartiles by living area: Under 1,880 SF: 1,630–1,876 SF (7 sales); 1,880–2,174 SF: 1,880–2,174 SF (7 sales); 2,213–2,585 SF: 2,213–2,585 SF (6 sales); Over 2,585 SF: 2,586–3,369 SF (7 sales) Groups by year built: Before 2021: 2020–2020 (10 sales); 2021–2022: 2021–2022 (7 sales); After 2022: 2023–2024 (10 sales) View and no view: View: MLS lists a view (5 sales); No view: None or Neighborhood (18 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 $421,272, median $416,000. Days on market: average 70, median 44: 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; Groups 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
3 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 = 3.55
3
0.3148
p < 0.0063
Unclear
ε² = 0.136
medium
Living area
Kruskal–Wallis
H = 16.44
3
0.0009
p < 0.0063
Yes
ε² = 0.632
large
Year built
Kruskal–Wallis
H = 6.19
3
0.1026
p < 0.0063
Unclear
ε² = 0.238
large
Days on market
Kruskal–Wallis
H = 1.59
3
0.6608
p < 0.0063
Unclear
ε² = 0.061
medium
Discount from original list
Kruskal–Wallis
H = 0.21
3
0.9764
p < 0.0063
Unclear
ε² = 0.008
negligible
Price cut before sale
Chi-square
χ² = 5.56
3
0.1352
p < 0.0063
Unclear
Cramér’s V = 0.454
medium
Seller paid closing costs or repairs
Chi-square
χ² = 2.29
3
0.5141
p < 0.0063
Unclear
Cramér’s V = 0.291
small
Has a view
Chi-square
χ² = 1.16
3
0.7622
p < 0.0063
Unclear
Cramér’s V = 0.207
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 = 17.24
3
0.0006
p < 0.0063
Yes
ε² = 0.663
large
Net price per SF
Kruskal–Wallis
H = 16.53
3
0.0009
p < 0.0063
Yes
ε² = 0.636
large
Year built
Kruskal–Wallis
H = 7.87
3
0.0489
p < 0.0063
Unclear
ε² = 0.303
large
Days on market
Kruskal–Wallis
H = 5.99
3
0.1119
p < 0.0063
Unclear
ε² = 0.231
large
Discount from original list
Kruskal–Wallis
H = 3.89
3
0.2735
p < 0.0063
Unclear
ε² = 0.150
large
Price cut before sale
Chi-square
χ² = 9.95
3
0.0190
p < 0.0063
Unclear
Cramér’s V = 0.607
large
Seller paid closing costs or repairs
Chi-square
χ² = 2.60
3
0.4579
p < 0.0063
Unclear
Cramér’s V = 0.310
medium
Has a view
Chi-square
χ² = 2.38
3
0.4965
p < 0.0063
Unclear
Cramér’s V = 0.297
small
8.3.3 Groups by year built
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 4.91
2
0.0860
p < 0.0063
Unclear
ε² = 0.189
large
Net price per SF
Kruskal–Wallis
H = 4.33
2
0.1149
p < 0.0063
Unclear
ε² = 0.166
large
Living area
Kruskal–Wallis
H = 7.43
2
0.0243
p < 0.0063
Unclear
ε² = 0.286
large
Days on market
Kruskal–Wallis
H = 1.73
2
0.4209
p < 0.0063
Unclear
ε² = 0.067
medium
Discount from original list
Kruskal–Wallis
H = 0.31
2
0.8582
p < 0.0063
Unclear
ε² = 0.012
small
Price cut before sale
Chi-square
χ² = 0.35
2
0.8388
p < 0.0063
Unclear
Cramér’s V = 0.114
small
Seller paid closing costs or repairs
Chi-square
χ² = 0.35
2
0.8388
p < 0.0063
Unclear
Cramér’s V = 0.114
small
Has a view
Chi-square
χ² = 5.13
2
0.0769
p < 0.0063
Unclear
Cramér’s V = 0.436
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 = 44.00
—
0.9703
p < 0.0063
Unclear
rank-biserial r = 0.022
negligible
Net price per SF
Mann–Whitney U
U = 40.00
—
0.7453
p < 0.0063
Unclear
rank-biserial r = 0.111
small
Living area
Mann–Whitney U
U = 48.00
—
0.8520
p < 0.0063
Unclear
rank-biserial r = 0.067
negligible
Year built
Mann–Whitney U
U = 65.50
—
0.1202
p < 0.0063
Unclear
rank-biserial r = 0.456
medium
Days on market
Mann–Whitney U
U = 44.00
—
0.9702
p < 0.0063
Unclear
rank-biserial r = 0.022
negligible
Discount from original list
Mann–Whitney U
U = 47.00
—
0.9138
p < 0.0063
Unclear
rank-biserial r = 0.044
negligible
Price cut before sale
Chi-square
χ² = 0.08
1
0.7819
p < 0.0063
Unclear
Cramér’s V = 0.058
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 0.08
1
0.7819
p < 0.0063
Unclear
Cramér’s V = 0.058
negligible
8.4 Data notes
Left out of the analysis: 49 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.