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
43
single-family resale homes
Median net sale price
$422,500
average $441,933
Median net price per SF
$220
average $219
Median days on market
36 days
average 67 days
1. SummaryResale homes · 43 sales · October 26, 2025 – October 25, 2026
This study looks at the 43 resale homes sold in Anderson Mill West Sec 03 in the 365 days to October 25, 2026. A full year is used because only 23 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 sold43 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 · 43 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 $486K are about 1,350 SF (92%) larger than homes under $365K.
Homes over $486K are about 15 years newer than homes under $365K.
3.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under $365K$365K–$422K$428K–$486KOver $486K
Higher-priced homes Over $486K
Are much larger.
Tend to be newer.
Lower-priced homes Under $365K
Are much smaller.
Tend to be older.
3.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under $365K
$365K–$422K
$428K–$486K
Over $486K
Real difference?
Net price per SF
$227 per SF
$223 per SF
$207 per SF
$216 per SF
unclear
Living area
1,459 SFSmallest
1,787 SF
2,276 SF
2,806 SFLargest
✓ large
Year built
1987Oldest
1989
1994
2002Newest
✓ large
Days on market
21 days
45 days
28 days
34 days
unclear
Discount from original list
10.8%
7.5%
6.2%
3.7%
unclear
Price cut before sale
45%
36%
60%
45%
unclear
Seller paid closing costs or repairs
82%
55%
50%
73%
unclear
Has a view
9%
0%
10%
27%
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 $216 per SF for homes over $486K and $227 per SF for homes under $365K. It does not move in a straight line; homes under $365K are highest. Defined in 8.1.2.
– No clear difference · could be chance
3.4 Homes over $486K are about 1,350 SF (92%) larger than homes under $365K
The average is 2,806 SF for homes over $486K and 1,459 SF for homes under $365K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
✓ Real difference · large
3.5 Homes over $486K are about 15 years newer than homes under $365K
The median is 2002 for homes over $486K and 1987 for homes under $365K. It rises step by step from the lowest range to the highest. Defined in 8.1.4.
✓ Real difference · large
3.6 Days on market: no clear difference
The median is 34 days for homes over $486K and 21 days for homes under $365K. It does not move in a straight line; homes $365K–$422K 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 3.7% for homes over $486K and 10.8% for homes under $365K. It falls step by step from the lowest range to the 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.
45% of homes over $486K had a price cut before sale, against 45% of homes under $365K. Defined in 8.1.7.
73% of homes over $486K had the seller pay closing costs or repairs, against 82% of homes under $365K. Defined in 8.1.8.
27% of homes over $486K have a view, against 9% of homes under $365K. 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 $365K11 sales
$365K–$422K11 sales
$428K–$486K10 sales
Over $486K11 sales
All43 sales
Real difference?
Net sale price average
$323,217
$387,477
$454,295
$603,868
$441,933
by design
Net price per SF average
$227
$223
$207
$216
$219
unclear
Living area average
1,459
1,787
2,276
2,806
2,078
✓ large
Year built median
1987
1989
1994
2002
1993
✓ large
3.10 The numbers: selling
Under $365K11 sales
$365K–$422K11 sales
$428K–$486K10 sales
Over $486K11 sales
All43 sales
Real difference?
Days on market median
21
45
28
34
36
unclear
Discount from original list average
10.8%
7.5%
6.2%
3.7%
7.1%
unclear
Price cut before sale
45%
36%
60%
45%
47%
unclear
Seller paid closing costs or repairs
82%
55%
50%
73%
65%
unclear
Has a view
9%
0%
10%
27%
12%
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 · 43 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 2,533 SF sell for about $246K (71%) more than homes under 1,576 SF.
Homes over 2,533 SF are about 15 years newer than homes under 1,576 SF.
Homes over 2,533 SF sell for about $57 per SF (23%) less than homes under 1,576 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 1,576 SF1,576–1,881 SF1,948–2,533 SFOver 2,533 SF
Larger homes Over 2,533 SF
Sell for much more.
Tend to be newer.
Sell for less per square foot.
Smaller homes Under 1,576 SF
Sell for much less.
Tend to be older.
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 1,576 SF
1,576–1,881 SF
1,948–2,533 SF
Over 2,533 SF
Real difference?
Net sale price
$345KLowest
$370K
$464K
$591KHighest
✓ large
Net price per SF
$253 per SFHighest
$214 per SF
$209 per SF
$196 per SFLowest
✓ large
Year built
1987Oldest
1992
1994
2002Newest
✓ large
Days on market
21 days
38 days
39 days
34 days
unclear
Discount from original list
5.1%
10.7%
7.0%
5.5%
unclear
Price cut before sale
27%
45%
60%
55%
unclear
Seller paid closing costs or repairs
64%
73%
70%
55%
unclear
Has a view
9%
0%
10%
27%
unclear
4.3 Homes over 2,533 SF sell for about $246K (71%) more than homes under 1,576 SF
The average is $591K for homes over 2,533 SF and $345K for homes under 1,576 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 2,533 SF sell for about $57 per SF (23%) less than homes under 1,576 SF
The average is $196 per SF for homes over 2,533 SF and $253 per SF for homes under 1,576 SF. It falls step by step from the lowest range to the highest. Defined in 8.1.2.
✓ Real difference · large
4.5 Homes over 2,533 SF are about 15 years newer than homes under 1,576 SF
The median is 2002 for homes over 2,533 SF and 1987 for homes under 1,576 SF. It rises step by step from the lowest range to the 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 2,533 SF and 21 days for homes under 1,576 SF. It does not move in a straight line; homes 1,948–2,533 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 5.5% for homes over 2,533 SF and 5.1% for homes under 1,576 SF. It does not move in a straight line; homes 1,576–1,881 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.
55% of homes over 2,533 SF had a price cut before sale, against 27% of homes under 1,576 SF. Defined in 8.1.7.
55% of homes over 2,533 SF had the seller pay closing costs or repairs, against 64% of homes under 1,576 SF. Defined in 8.1.8.
27% of homes over 2,533 SF have a view, against 9% of homes under 1,576 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 1,576 SF11 sales
1,576–1,881 SF11 sales
1,948–2,533 SF10 sales
Over 2,533 SF11 sales
All43 sales
Real difference?
Net sale price average
$345,338
$369,675
$463,810
$590,900
$441,933
✓ large
Net price per SF average
$253
$214
$209
$196
$219
✓ large
Living area average
1,373
1,729
2,228
2,995
2,078
by design
Year built median
1987
1992
1994
2002
1993
✓ large
4.10 The numbers: selling
Under 1,576 SF11 sales
1,576–1,881 SF11 sales
1,948–2,533 SF10 sales
Over 2,533 SF11 sales
All43 sales
Real difference?
Days on market median
21
38
39
34
36
unclear
Discount from original list average
5.1%
10.7%
7.0%
5.5%
7.1%
unclear
Price cut before sale
27%
45%
60%
55%
47%
unclear
Seller paid closing costs or repairs
64%
73%
70%
55%
65%
unclear
Has a view
9%
0%
10%
27%
12%
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 · 43 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 1996 sell for about $228K (63%) more than homes built before 1988.
Homes built after 1996 are about 1,080 SF (66%) larger than homes built before 1988.
5.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Before 19881988–19921993–1996After 1996
Newer homes After 1996
Sell for much more.
Are much larger.
Older homes Before 1988
Sell for much less.
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 1988
1988–1992
1993–1996
After 1996
Real difference?
Net sale price
$363K
$359KLowest
$439K
$591KHighest
✓ large
Net price per SF
$234 per SF
$222 per SF
$202 per SF
$218 per SF
unclear
Living area
1,641 SF
1,627 SFSmallest
2,225 SF
2,723 SFLargest
✓ large
Days on market
21 days
45 days
37 days
34 days
unclear
Discount from original list
7.9%
9.1%
6.3%
5.4%
unclear
Price cut before sale
55%
33%
50%
45%
unclear
Seller paid closing costs or repairs
55%
78%
75%
55%
unclear
Has a view
0%
11%
0%
36%
unclear
5.3 Homes built after 1996 sell for about $228K (63%) more than homes built before 1988
The average is $591K for homes built after 1996 and $363K for homes built before 1988. It does not move in a straight line; homes built after 1996 are highest. Defined in 8.1.1.
✓ Real difference · large
5.4 Net price per SF: no clear difference
The average is $218 per SF for homes built after 1996 and $234 per SF for homes built before 1988. It does not move in a straight line; homes built before 1988 are highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Homes built after 1996 are about 1,080 SF (66%) larger than homes built before 1988
The average is 2,723 SF for homes built after 1996 and 1,641 SF for homes built before 1988. It does not move in a straight line; homes built after 1996 are highest. Defined in 8.1.3.
✓ Real difference · large
5.6 Days on market: no clear difference
The median is 34 days for homes built after 1996 and 21 days for homes built before 1988. It does not move in a straight line; homes built 1988–1992 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 5.4% for homes built after 1996 and 7.9% for homes built before 1988. It does not move in a straight line; homes built 1988–1992 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.
45% of homes built after 1996 had a price cut before sale, against 55% of homes built before 1988. Defined in 8.1.7.
55% of homes built after 1996 had the seller pay closing costs or repairs, against 55% of homes built before 1988. Defined in 8.1.8.
36% of homes built after 1996 have a view, against 0% of homes built before 1988. 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 198811 sales
1988–19929 sales
1993–199612 sales
After 199611 sales
All43 sales
Real difference?
Net sale price average
$363,204
$359,480
$439,173
$591,136
$441,933
✓ large
Net price per SF average
$234
$222
$202
$218
$219
unclear
Living area average
1,641
1,627
2,225
2,723
2,078
✓ large
Year built median
1986
1989
1994
2002
1993
by design
5.10 The numbers: selling
Before 198811 sales
1988–19929 sales
1993–199612 sales
After 199611 sales
All43 sales
Real difference?
Days on market median
21
45
37
34
36
unclear
Discount from original list average
7.9%
9.1%
6.3%
5.4%
7.1%
unclear
Price cut before sale
55%
33%
50%
45%
47%
unclear
Seller paid closing costs or repairs
55%
78%
75%
55%
65%
unclear
Has a view
0%
11%
0%
36%
12%
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 · 43 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
$599K
$420K
unclear
Net price per SF
$223 per SF
$219 per SF
unclear
Living area
2,676 SF
1,988 SF
unclear
Year built
2002
1992
unclear
Days on market
21 days
36 days
unclear
Discount from original list
3.5%
7.5%
unclear
Price cut before sale
40%
46%
unclear
Seller paid closing costs or repairs
60%
65%
unclear
6.3 Net sale price: no clear difference
The average is $599K for homes with a view and $420K 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 $223 per SF for homes with a view and $219 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 2,676 SF for homes with a view and 1,988 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 2002 for homes with a view and 1992 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 21 days for homes with a view and 36 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 3.5% for homes with a view and 7.5% 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.
40% of homes with a view had a price cut before sale, against 46% 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 65% 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 view37 sales
All42 sales
Real difference?
Net sale price average
$599,054
$420,348
$441,622
unclear
Net price per SF average
$223
$219
$219
unclear
Living area average
2,676
1,988
2,070
unclear
Year built median
2002
1992
1993
unclear
6.11 The numbers: selling
View5 sales
No view37 sales
All42 sales
Real difference?
Days on market median
21
36
35
unclear
Discount from original list average
3.5%
7.5%
7.0%
unclear
Price cut before sale
40%
46%
45%
unclear
Seller paid closing costs or repairs
60%
65%
64%
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 Anderson Mill West Sec 03.
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
43 resale sales. Average $441,933; median $422,500; standard deviation $131,492; middle half (25th–75th percentile) $364,000–$485,750; lowest $210,000, highest $897,000. 28 sales had a seller payment; their median payment was $5,000.
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
43 resale sales. Average $219; median $220; standard deviation $38; middle half (25th–75th percentile) $194–$244; lowest $131, highest $293.
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
43 resale sales. Average 2,078; median 1,881; standard deviation 657; middle half (25th–75th percentile) 1,566–2,598; lowest 939, highest 3,603.
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
43 resale sales. Average 1993; median 1993; standard deviation 6; middle half (25th–75th percentile) 1988–1997; lowest 1985, highest 2003.
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
43 resale sales. Average 67; median 36; standard deviation 77; middle half (25th–75th percentile) 14–100; lowest 3, highest 293. 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
43 resale sales. Average 7.1%; median 4.8%; standard deviation 7.7%; middle half (25th–75th percentile) 2.6%–11.4%; lowest −5.2%, highest 31.1%. 5 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
20 of 43 resale sales (46.5%).
8.1.8 Seller paid closing costs or repairs
In simple terms
The seller paid some of the buyer's closing costs or repairs.
Statistically
Indicator: ACTRIS_BuyersClsgCostPdbySell + ACTRIS_RepairsAmount > 0. Reported as the share of sales (%).
The data
28 of 43 resale sales (65.1%).
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, 37 without, 1 unclassified. Most common View entries: None 30, Neighborhood 9, Trees/Woods 3, Hill Country 2, City 1, See Remarks 1, Park/Greenbelt 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 = Cedar Park, SubdivisionName contains any of “anderson mill west”, “oakwood glen”, “oakwood glen south”, “oakwood glen sub” (case-insensitive). A record is kept when its subdivision name belongs to the Anderson Mill West Sec 03 family, the same rule comparable sales use (it includes Oakwood Glen Sub, Oakwood Glen South, proven adjacent and priced alike).
The data
Pulled October 26, 2026: 43 closed Anderson Mill West Sec 03 records over the prior year, in ZIP 78613. 18 subdivision spellings kept, the most common: Anderson Mill West Sec 19 (6); Anderson Mill West Sec 01 (5); Anderson Mill West Sec 03 (5); Anderson Mill West Sec 21 (4); Oakwood Glen South (3); Anderson Mill West Sec 02 (3); Anderson Mill West Sec 14 (2); Anderson Mill West Sec 05 (2); Anderson Mill West Sec 15 (2); Anderson Mill West Sec 17 (2); Anderson Mill West Sec 06 (2); Anderson Mill West Sec 04 (1); and 6 more (6 records). Names found by the search but not part of Anderson Mill West Sec 03, left out: Anderson Mill West, Volente Hills (1).
8.2.2 Study window
In simple terms
The most recent 365 days of closed sales: recent enough to describe today's market, long enough to give each group plenty of sales. The usual window is 180 days; it holds only 23 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from October 26, 2025 to October 25, 2026 inclusive.
The data
43 single-family sales in the window: 43 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
43 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
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 $365K”.
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 $365K: $210,000–$363,000 (11 sales); $365K–$422K: $365,000–$422,500 (11 sales); $428K–$486K: $427,500–$485,500 (10 sales); Over $486K: $486,000–$897,000 (11 sales) Quartiles by living area: Under 1,576 SF: 939–1,555 SF (11 sales); 1,576–1,881 SF: 1,576–1,881 SF (11 sales); 1,948–2,533 SF: 1,948–2,533 SF (10 sales); Over 2,533 SF: 2,662–3,603 SF (11 sales) Quartiles by year built: Before 1988: 1985–1987 (11 sales); 1988–1992: 1988–1992 (9 sales); 1993–1996: 1993–1996 (12 sales); After 1996: 1998–2003 (11 sales) View and no view: View: MLS lists a view (5 sales); No view: None or Neighborhood (37 sales)
8.2.6 Average and median
In simple terms
The average adds the values and divides by how many; one very expensive home can pull it up. The median is the middle value, with half above and half below.
Statistically
Mean x̄ = (1/n) Σ xᵢ; median = 50th percentile. Price, price per SF, living area and discount use the mean; days on market and year built use the median (skewed or whole-year values).
The data
Net sale price: average $441,933, median $422,500. Days on market: average 67, median 36: 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
7 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 = 2.05
3
0.5622
p < 0.0063
Unclear
ε² = 0.049
small
Living area
Kruskal–Wallis
H = 26.99
3
< 0.0001
p < 0.0063
Yes
ε² = 0.643
large
Year built
Kruskal–Wallis
H = 19.64
3
0.0002
p < 0.0063
Yes
ε² = 0.468
large
Days on market
Kruskal–Wallis
H = 1.61
3
0.6567
p < 0.0063
Unclear
ε² = 0.038
small
Discount from original list
Kruskal–Wallis
H = 2.78
3
0.4274
p < 0.0063
Unclear
ε² = 0.066
medium
Price cut before sale
Chi-square
χ² = 1.20
3
0.7538
p < 0.0063
Unclear
Cramér’s V = 0.167
small
Seller paid closing costs or repairs
Chi-square
χ² = 3.18
3
0.3649
p < 0.0063
Unclear
Cramér’s V = 0.272
small
Has a view
Chi-square
χ² = 4.16
3
0.2445
p < 0.0063
Unclear
Cramér’s V = 0.311
medium
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 = 30.74
3
< 0.0001
p < 0.0063
Yes
ε² = 0.732
large
Net price per SF
Kruskal–Wallis
H = 13.89
3
0.0031
p < 0.0063
Yes
ε² = 0.331
large
Year built
Kruskal–Wallis
H = 20.05
3
0.0002
p < 0.0063
Yes
ε² = 0.477
large
Days on market
Kruskal–Wallis
H = 0.42
3
0.9363
p < 0.0063
Unclear
ε² = 0.010
negligible
Discount from original list
Kruskal–Wallis
H = 3.24
3
0.3557
p < 0.0063
Unclear
ε² = 0.077
medium
Price cut before sale
Chi-square
χ² = 2.66
3
0.4474
p < 0.0063
Unclear
Cramér’s V = 0.249
small
Seller paid closing costs or repairs
Chi-square
χ² = 0.94
3
0.8164
p < 0.0063
Unclear
Cramér’s V = 0.148
small
Has a view
Chi-square
χ² = 4.16
3
0.2445
p < 0.0063
Unclear
Cramér’s V = 0.311
medium
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 = 24.58
3
< 0.0001
p < 0.0063
Yes
ε² = 0.585
large
Net price per SF
Kruskal–Wallis
H = 5.29
3
0.1520
p < 0.0063
Unclear
ε² = 0.126
medium
Living area
Kruskal–Wallis
H = 21.16
3
< 0.0001
p < 0.0063
Yes
ε² = 0.504
large
Days on market
Kruskal–Wallis
H = 0.13
3
0.9885
p < 0.0063
Unclear
ε² = 0.003
negligible
Discount from original list
Kruskal–Wallis
H = 1.10
3
0.7774
p < 0.0063
Unclear
ε² = 0.026
small
Price cut before sale
Chi-square
χ² = 0.98
3
0.8068
p < 0.0063
Unclear
Cramér’s V = 0.151
small
Seller paid closing costs or repairs
Chi-square
χ² = 2.23
3
0.5254
p < 0.0063
Unclear
Cramér’s V = 0.228
small
Has a view
Chi-square
χ² = 9.58
3
0.0225
p < 0.0063
Unclear
Cramér’s V = 0.472
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 = 141.00
—
0.0623
p < 0.0063
Unclear
rank-biserial r = 0.524
large
Net price per SF
Mann–Whitney U
U = 96.00
—
0.9101
p < 0.0063
Unclear
rank-biserial r = 0.038
negligible
Living area
Mann–Whitney U
U = 136.00
—
0.0958
p < 0.0063
Unclear
rank-biserial r = 0.470
medium
Year built
Mann–Whitney U
U = 155.50
—
0.0148
p < 0.0063
Unclear
rank-biserial r = 0.681
large
Days on market
Mann–Whitney U
U = 80.50
—
0.6550
p < 0.0063
Unclear
rank-biserial r = 0.130
small
Discount from original list
Mann–Whitney U
U = 61.00
—
0.2366
p < 0.0063
Unclear
rank-biserial r = 0.341
medium
Price cut before sale
Chi-square
χ² = 0.06
1
0.8020
p < 0.0063
Unclear
Cramér’s V = 0.039
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 0.05
1
0.8313
p < 0.0063
Unclear
Cramér’s V = 0.033
negligible
8.4 Data notes
Left out of the analysis: 0 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.