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
42
single-family resale homes
Median net sale price
$467,112
average $517,857
Median net price per SF
$203
average $204
Median days on market
10 days
average 49 days
1. SummaryResale homes · 42 sales · October 26, 2025 – October 25, 2026
This study looks at the 42 resale homes sold in Cat Hollow 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 sold42 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 · 42 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 $565K are about 1,440 SF (71%) larger than homes under $430K.
3.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under $430K$430K–$465K$469K–$565KOver $565K
Higher-priced homes Over $565K
Are much larger.
Lower-priced homes Under $430K
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 $430K
$430K–$465K
$469K–$565K
Over $565K
Real difference?
Net price per SF
$187 per SF
$212 per SF
$204 per SF
$214 per SF
unclear
Living area
2,040 SFSmallest
2,186 SF
2,594 SF
3,483 SFLargest
✓ large
Year built
1995
1997
1998
2000
unclear
Days on market
30 days
7 days
4 days
20 days
unclear
Discount from original list
7.5%
2.9%
2.1%
3.0%
unclear
Price cut before sale
60%
36%
27%
30%
unclear
Seller paid closing costs or repairs
20%
55%
36%
60%
unclear
Has a view
10%
18%
36%
30%
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 $214 per SF for homes over $565K and $187 per SF for homes under $430K. It does not move in a straight line; homes over $565K are highest. Defined in 8.1.2.
– No clear difference · could be chance
3.4 Homes over $565K are about 1,440 SF (71%) larger than homes under $430K
The average is 3,483 SF for homes over $565K and 2,040 SF for homes under $430K. 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 2000 for homes over $565K and 1995 for homes under $430K. It rises step by step from the lowest range to the highest. Defined in 8.1.4.
– No clear difference · could be chance
3.6 Days on market: no clear difference
The median is 20 days for homes over $565K and 30 days for homes under $430K. It does not move in a straight line; homes under $430K 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 3.0% for homes over $565K and 7.5% for homes under $430K. It does not move in a straight line; homes under $430K 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.
30% of homes over $565K had a price cut before sale, against 60% of homes under $430K. Defined in 8.1.7.
60% of homes over $565K had the seller pay closing costs or repairs, against 20% of homes under $430K. Defined in 8.1.8.
30% of homes over $565K have a view, against 10% of homes under $430K. 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 $430K10 sales
$430K–$465K11 sales
$469K–$565K11 sales
Over $565K10 sales
All42 sales
Real difference?
Net sale price average
$374,031
$449,506
$523,455
$730,712
$517,857
by design
Net price per SF average
$187
$212
$204
$214
$204
unclear
Living area average
2,040
2,186
2,594
3,483
2,567
✓ large
Year built median
1995
1997
1998
2000
1998
unclear
3.10 The numbers: selling
Under $430K10 sales
$430K–$465K11 sales
$469K–$565K11 sales
Over $565K10 sales
All42 sales
Real difference?
Days on market median
30
7
4
20
10
unclear
Discount from original list average
7.5%
2.9%
2.1%
3.0%
3.8%
unclear
Price cut before sale
60%
36%
27%
30%
38%
unclear
Seller paid closing costs or repairs
20%
55%
36%
60%
43%
unclear
Has a view
10%
18%
36%
30%
24%
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 · 42 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 2,880 SF sell for about $300K (75%) more than homes under 2,069 SF.
Homes over 2,880 SF are about 4 years newer than homes under 2,069 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 2,069 SF2,069–2,464 SF2,529–2,880 SFOver 2,880 SF
Larger homes Over 2,880 SF
Sell for much more.
Tend to be newer.
Smaller homes Under 2,069 SF
Sell for much less.
Tend to be older.
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 2,069 SF
2,069–2,464 SF
2,529–2,880 SF
Over 2,880 SF
Real difference?
Net sale price
$400KLowest
$461K
$515K
$700KHighest
✓ large
Net price per SF
$224 per SF
$204 per SF
$192 per SF
$198 per SF
unclear
Year built
1996Oldest
1996
2001Newest
2000
✓ large
Days on market
9 days
8 days
10 days
34 days
unclear
Discount from original list
2.6%
3.8%
5.0%
3.8%
unclear
Price cut before sale
30%
36%
45%
40%
unclear
Seller paid closing costs or repairs
10%
64%
36%
60%
unclear
Has a view
10%
27%
27%
30%
unclear
4.3 Homes over 2,880 SF sell for about $300K (75%) more than homes under 2,069 SF
The average is $700K for homes over 2,880 SF and $400K for homes under 2,069 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 $198 per SF for homes over 2,880 SF and $224 per SF for homes under 2,069 SF. It does not move in a straight line; homes under 2,069 SF are highest. Defined in 8.1.2.
– No clear difference · could be chance
4.5 Homes over 2,880 SF are about 4 years newer than homes under 2,069 SF
The median is 2000 for homes over 2,880 SF and 1996 for homes under 2,069 SF. It does not move in a straight line; homes 2,529–2,880 SF are highest. Defined in 8.1.4.
✓ Real difference · large
4.6 Days on market: no clear difference
The median is 34 days for homes over 2,880 SF and 9 days for homes under 2,069 SF. It does not move in a straight line; homes over 2,880 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 3.8% for homes over 2,880 SF and 2.6% for homes under 2,069 SF. It does not move in a straight line; homes 2,529–2,880 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.
40% of homes over 2,880 SF had a price cut before sale, against 30% of homes under 2,069 SF. Defined in 8.1.7.
60% of homes over 2,880 SF had the seller pay closing costs or repairs, against 10% of homes under 2,069 SF. Defined in 8.1.8.
30% of homes over 2,880 SF have a view, against 10% of homes under 2,069 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 2,069 SF10 sales
2,069–2,464 SF11 sales
2,529–2,880 SF11 sales
Over 2,880 SF10 sales
All42 sales
Real difference?
Net sale price average
$400,300
$461,285
$515,431
$700,312
$517,857
✓ large
Net price per SF average
$224
$204
$192
$198
$204
unclear
Living area average
1,792
2,263
2,687
3,544
2,567
by design
Year built median
1996
1996
2001
2000
1998
✓ large
4.10 The numbers: selling
Under 2,069 SF10 sales
2,069–2,464 SF11 sales
2,529–2,880 SF11 sales
Over 2,880 SF10 sales
All42 sales
Real difference?
Days on market median
9
8
10
34
10
unclear
Discount from original list average
2.6%
3.8%
5.0%
3.8%
3.8%
unclear
Price cut before sale
30%
36%
45%
40%
38%
unclear
Seller paid closing costs or repairs
10%
64%
36%
60%
43%
unclear
Has a view
10%
27%
27%
30%
24%
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 · 42 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 2000 are about 760 SF (36%) larger than homes built before 1995.
5.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Before 19951995–19971998–2000After 2000
Newer homes After 2000
Are much larger.
Older homes Before 1995
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 1995
1995–1997
1998–2000
After 2000
Real difference?
Net sale price
$427K
$458K
$595K
$548K
unclear
Net price per SF
$207 per SF
$212 per SF
$205 per SF
$190 per SF
unclear
Living area
2,108 SFSmallest
2,183 SF
2,932 SFLargest
2,868 SF
✓ large
Days on market
5 days
13 days
31 days
10 days
unclear
Discount from original list
3.8%
3.0%
3.3%
5.8%
unclear
Price cut before sale
29%
42%
36%
44%
unclear
Seller paid closing costs or repairs
71%
42%
50%
11%
unclear
Has a view
0%
17%
36%
33%
unclear
5.3 Net sale price: no clear difference
The average is $548K for homes built after 2000 and $427K for homes built before 1995. It does not move in a straight line; homes built 1998–2000 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 $190 per SF for homes built after 2000 and $207 per SF for homes built before 1995. It does not move in a straight line; homes built 1995–1997 are highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Homes built after 2000 are about 760 SF (36%) larger than homes built before 1995
The average is 2,868 SF for homes built after 2000 and 2,108 SF for homes built before 1995. It does not move in a straight line; homes built 1998–2000 are highest. Defined in 8.1.3.
✓ Real difference · large
5.6 Days on market: no clear difference
The median is 10 days for homes built after 2000 and 5 days for homes built before 1995. It does not move in a straight line; homes built 1998–2000 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 5.8% for homes built after 2000 and 3.8% for homes built before 1995. It does not move in a straight line; homes built after 2000 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.
44% of homes built after 2000 had a price cut before sale, against 29% of homes built before 1995. Defined in 8.1.7.
11% of homes built after 2000 had the seller pay closing costs or repairs, against 71% of homes built before 1995. Defined in 8.1.8.
33% of homes built after 2000 have a view, against 0% of homes built before 1995. 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 19957 sales
1995–199712 sales
1998–200014 sales
After 20009 sales
All42 sales
Real difference?
Net sale price average
$426,669
$458,489
$594,996
$547,944
$517,857
unclear
Net price per SF average
$207
$212
$205
$190
$204
unclear
Living area average
2,108
2,183
2,932
2,868
2,567
✓ large
Year built median
1990
1996
1999
2001
1998
by design
5.10 The numbers: selling
Before 19957 sales
1995–199712 sales
1998–200014 sales
After 20009 sales
All42 sales
Real difference?
Days on market median
5
13
31
10
10
unclear
Discount from original list average
3.8%
3.0%
3.3%
5.8%
3.8%
unclear
Price cut before sale
29%
42%
36%
44%
38%
unclear
Seller paid closing costs or repairs
71%
42%
50%
11%
43%
unclear
Has a view
0%
17%
36%
33%
24%
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 · 42 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. 1 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
$553K
$509K
unclear
Net price per SF
$207 per SF
$202 per SF
unclear
Living area
2,729 SF
2,537 SF
unclear
Year built
1998
1997
unclear
Days on market
18 days
9 days
unclear
Discount from original list
4.7%
3.7%
unclear
Price cut before sale
50%
35%
unclear
Seller paid closing costs or repairs
20%
52%
unclear
6.3 Net sale price: no clear difference
The average is $553K for homes with a view and $509K 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 $207 per SF for homes with a view and $202 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 2,729 SF for homes with a view and 2,537 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 1998 for homes with a view and 1997 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 18 days for homes with a view and 9 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 4.7% for homes with a view and 3.7% 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.
50% of homes with a view had a price cut before sale, against 35% of homes without a view. Defined in 8.1.7.
20% of homes with a view had the seller pay closing costs or repairs, against 52% 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
View10 sales
No view31 sales
All41 sales
Real difference?
Net sale price average
$553,483
$508,715
$519,634
unclear
Net price per SF average
$207
$202
$204
unclear
Living area average
2,729
2,537
2,584
unclear
Year built median
1998
1997
1998
unclear
6.11 The numbers: selling
View10 sales
No view31 sales
All41 sales
Real difference?
Days on market median
18
9
11
unclear
Discount from original list average
4.7%
3.7%
3.9%
unclear
Price cut before sale
50%
35%
39%
unclear
Seller paid closing costs or repairs
20%
52%
44%
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 Cat Hollow.
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
42 resale sales. Average $517,857; median $467,112; standard deviation $141,191; middle half (25th–75th percentile) $431,469–$565,000; lowest $280,000, highest $895,000. 18 sales had a seller payment; their median payment was $4,562.
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
42 resale sales. Average $204; median $203; standard deviation $32; middle half (25th–75th percentile) $181–$229; lowest $141, highest $281.
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
42 resale sales. Average 2,567; median 2,496; standard deviation 704; middle half (25th–75th percentile) 2,073–2,879; lowest 1,522, highest 4,619.
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
42 resale sales. Average 1997; median 1998; standard deviation 4; middle half (25th–75th percentile) 1995–2000; lowest 1988, highest 2004.
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
42 resale sales. Average 49; median 10; standard deviation 75; middle half (25th–75th percentile) 4–62; lowest 1, highest 300. 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
42 resale sales. Average 3.8%; median 2.0%; standard deviation 7.1%; middle half (25th–75th percentile) −1.2%–8.0%; lowest −8.1%, highest 20.8%. 14 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
16 of 42 resale sales (38.1%).
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
18 of 42 resale sales (42.9%).
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
10 sales with a view, 31 without, 1 unclassified. Most common View entries: None 23, Neighborhood 9, Park/Greenbelt 7, Pool 2, See Remarks 1, Trees/Woods 1, Garden 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 = Round Rock, SubdivisionName contains any of “cat hollow” (case-insensitive). A record is kept when its subdivision name belongs to the Cat Hollow family, the same rule comparable sales use.
The data
Pulled October 26, 2026: 52 closed Cat Hollow records over the prior year, in ZIP 78681. 20 subdivision spellings kept, the most common: Cat Hollow Condo (9); Cat Hollow Sec 07 (4); Cat Hollow Sec A Ph 04 (4); Cat Hollow Sec A Ph 03 (4); Cat Hollow Sec A Ph 02 (4); Cat Hollow Sec A Ph 01 (3); Cat Hollow Sec B (3); Cat Hollow Sec 13 (3); Cat Hollow Sec 05-A (3); Cat Hollow Sec C Ph 01 (2); Cat Hollow Sec 09 (2); Cat Hollow Sec 01-A (2); and 8 more (9 records). 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 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
42 single-family sales in the window: 42 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
42 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
10 sale(s) other than single-family homes (condo, townhome and similar)
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 $430K”.
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 $430K: $280,000–$427,000 (10 sales); $430K–$465K: $430,000–$465,000 (11 sales); $469K–$565K: $469,225–$565,000 (11 sales); Over $565K: $613,000–$895,000 (10 sales) Quartiles by living area: Under 2,069 SF: 1,522–2,046 SF (10 sales); 2,069–2,464 SF: 2,069–2,464 SF (11 sales); 2,529–2,880 SF: 2,529–2,880 SF (11 sales); Over 2,880 SF: 2,969–4,619 SF (10 sales) Quartiles by year built: Before 1995: 1988–1993 (7 sales); 1995–1997: 1995–1997 (12 sales); 1998–2000: 1998–2000 (14 sales); After 2000: 2001–2004 (9 sales) View and no view: View: MLS lists a view (10 sales); No view: None or Neighborhood (31 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 $517,857, median $467,112. Days on market: average 49, median 10: 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
4 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 = 3.75
3
0.2892
p < 0.0063
Unclear
ε² = 0.092
medium
Living area
Kruskal–Wallis
H = 25.58
3
< 0.0001
p < 0.0063
Yes
ε² = 0.624
large
Year built
Kruskal–Wallis
H = 9.09
3
0.0281
p < 0.0063
Unclear
ε² = 0.222
large
Days on market
Kruskal–Wallis
H = 6.01
3
0.1110
p < 0.0063
Unclear
ε² = 0.147
large
Discount from original list
Kruskal–Wallis
H = 3.52
3
0.3179
p < 0.0063
Unclear
ε² = 0.086
medium
Price cut before sale
Chi-square
χ² = 2.87
3
0.4117
p < 0.0063
Unclear
Cramér’s V = 0.262
small
Seller paid closing costs or repairs
Chi-square
χ² = 4.14
3
0.2471
p < 0.0063
Unclear
Cramér’s V = 0.314
medium
Has a view
Chi-square
χ² = 2.41
3
0.4917
p < 0.0063
Unclear
Cramér’s V = 0.240
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 = 24.19
3
< 0.0001
p < 0.0063
Yes
ε² = 0.590
large
Net price per SF
Kruskal–Wallis
H = 6.90
3
0.0751
p < 0.0063
Unclear
ε² = 0.168
large
Year built
Kruskal–Wallis
H = 14.40
3
0.0024
p < 0.0063
Yes
ε² = 0.351
large
Days on market
Kruskal–Wallis
H = 1.93
3
0.5866
p < 0.0063
Unclear
ε² = 0.047
small
Discount from original list
Kruskal–Wallis
H = 0.89
3
0.8271
p < 0.0063
Unclear
ε² = 0.022
small
Price cut before sale
Chi-square
χ² = 0.56
3
0.9056
p < 0.0063
Unclear
Cramér’s V = 0.115
small
Seller paid closing costs or repairs
Chi-square
χ² = 7.74
3
0.0518
p < 0.0063
Unclear
Cramér’s V = 0.429
medium
Has a view
Chi-square
χ² = 1.41
3
0.7037
p < 0.0063
Unclear
Cramér’s V = 0.183
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 = 9.60
3
0.0223
p < 0.0063
Unclear
ε² = 0.234
large
Net price per SF
Kruskal–Wallis
H = 3.29
3
0.3485
p < 0.0063
Unclear
ε² = 0.080
medium
Living area
Kruskal–Wallis
H = 13.30
3
0.0040
p < 0.0063
Yes
ε² = 0.324
large
Days on market
Kruskal–Wallis
H = 0.98
3
0.8069
p < 0.0063
Unclear
ε² = 0.024
small
Discount from original list
Kruskal–Wallis
H = 0.45
3
0.9288
p < 0.0063
Unclear
ε² = 0.011
small
Price cut before sale
Chi-square
χ² = 0.52
3
0.9141
p < 0.0063
Unclear
Cramér’s V = 0.111
small
Seller paid closing costs or repairs
Chi-square
χ² = 6.34
3
0.0964
p < 0.0063
Unclear
Cramér’s V = 0.388
medium
Has a view
Chi-square
χ² = 4.07
3
0.2541
p < 0.0063
Unclear
Cramér’s V = 0.311
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 = 183.00
—
0.4038
p < 0.0063
Unclear
rank-biserial r = 0.181
small
Net price per SF
Mann–Whitney U
U = 159.00
—
0.9154
p < 0.0063
Unclear
rank-biserial r = 0.026
negligible
Living area
Mann–Whitney U
U = 171.00
—
0.6380
p < 0.0063
Unclear
rank-biserial r = 0.103
small
Year built
Mann–Whitney U
U = 195.50
—
0.2218
p < 0.0063
Unclear
rank-biserial r = 0.261
small
Days on market
Mann–Whitney U
U = 170.50
—
0.6481
p < 0.0063
Unclear
rank-biserial r = 0.100
small
Discount from original list
Mann–Whitney U
U = 162.00
—
0.8436
p < 0.0063
Unclear
rank-biserial r = 0.045
negligible
Price cut before sale
Chi-square
χ² = 0.67
1
0.4132
p < 0.0063
Unclear
Cramér’s V = 0.128
small
Seller paid closing costs or repairs
Chi-square
χ² = 3.07
1
0.0798
p < 0.0063
Unclear
Cramér’s V = 0.274
small
8.4 Data notes
Left out of the analysis: 0 new-construction sales (basic statistics only, section 7); 10 sale(s) other than single-family homes (condo, townhome and similar). 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.