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
56
single-family resale homes
Median net sale price
$439,650
average $466,632
Median net price per SF
$184
average $183
Median days on market
76 days
average 95 days
1. SummaryResale homes · 56 sales · October 26, 2025 – October 25, 2026
This study looks at the 56 resale homes sold in Rancho Sienna in the 365 days to October 25, 2026. A full year is used because only 33 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 sold56 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 · 56 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 $540K are about 890 SF (40%) larger than homes under $380K.
Homes over $540K sell for about $40 per SF (25%) more than homes under $380K.
3.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under $380K$380K–$439K$440K–$540KOver $540K
Higher-priced homes Over $540K
Are much larger.
Sell for more per square foot.
Lower-priced homes Under $380K
Are much smaller.
Sell for less per square foot.
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 $380K
$380K–$439K
$440K–$540K
Over $540K
Real difference?
Net price per SF
$160 per SFLowest
$180 per SF
$190 per SF
$200 per SFHighest
✓ large
Living area
2,234 SFSmallest
2,273 SF
2,562 SF
3,128 SFLargest
✓ large
Year built
2019
2019
2018
2020
unclear
Days on market
113 days
53 days
86 days
50 days
unclear
Discount from original list
11.8%
6.6%
5.0%
6.4%
unclear
Price cut before sale
69%
47%
36%
64%
unclear
Seller paid closing costs or repairs
46%
73%
71%
57%
unclear
Has a view
15%
27%
50%
43%
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 Homes over $540K sell for about $40 per SF (25%) more than homes under $380K
The average is $200 per SF for homes over $540K and $160 per SF for homes under $380K. It rises step by step from the lowest range to the highest. Defined in 8.1.2.
✓ Real difference · large
3.4 Homes over $540K are about 890 SF (40%) larger than homes under $380K
The average is 3,128 SF for homes over $540K and 2,234 SF for homes under $380K. 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 2020 for homes over $540K and 2019 for homes under $380K. It does not move in a straight line; homes over $540K are highest. Defined in 8.1.4.
– No clear difference · could be chance
3.6 Days on market: no clear difference
The median is 50 days for homes over $540K and 113 days for homes under $380K. It does not move in a straight line; homes under $380K are highest. Defined in 8.1.5.
– No clear difference · could be chance
3.7 Discount from original list: no clear difference
The average is 6.4% for homes over $540K and 11.8% for homes under $380K. It does not move in a straight line; homes under $380K 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.
64% of homes over $540K had a price cut before sale, against 69% of homes under $380K. Defined in 8.1.7.
57% of homes over $540K had the seller pay closing costs or repairs, against 46% of homes under $380K. Defined in 8.1.8.
43% of homes over $540K have a view, against 15% of homes under $380K. 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 $380K13 sales
$380K–$439K15 sales
$440K–$540K14 sales
Over $540K14 sales
All56 sales
Real difference?
Net sale price average
$349,176
$404,947
$483,111
$625,311
$466,632
by design
Net price per SF average
$160
$180
$190
$200
$183
✓ large
Living area average
2,234
2,273
2,562
3,128
2,550
✓ large
Year built median
2019
2019
2018
2020
2018
unclear
3.10 The numbers: selling
Under $380K13 sales
$380K–$439K15 sales
$440K–$540K14 sales
Over $540K14 sales
All56 sales
Real difference?
Days on market median
113
53
86
50
76
unclear
Discount from original list average
11.8%
6.6%
5.0%
6.4%
7.4%
unclear
Price cut before sale
69%
47%
36%
64%
54%
unclear
Seller paid closing costs or repairs
46%
73%
71%
57%
62%
unclear
Has a view
15%
27%
50%
43%
34%
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 · 56 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 2,752 SF sell for about $231K (61%) more than homes under 2,190 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 2,190 SF2,190–2,568 SF2,577–2,752 SFOver 2,752 SF
Larger homes Over 2,752 SF
Sell for much more.
Smaller homes Under 2,190 SF
Sell for much less.
4.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under 2,190 SF
2,190–2,568 SF
2,577–2,752 SF
Over 2,752 SF
Real difference?
Net sale price
$381KLowest
$424K
$451K
$612KHighest
✓ large
Net price per SF
$191 per SF
$177 per SF
$170 per SF
$194 per SF
unclear
Year built
2019
2018
2018
2018
unclear
Days on market
48 days
105 days
100 days
50 days
unclear
Discount from original list
6.1%
9.3%
8.5%
5.5%
unclear
Price cut before sale
43%
64%
50%
57%
unclear
Seller paid closing costs or repairs
71%
64%
57%
57%
unclear
Has a view
36%
21%
43%
36%
unclear
4.3 Homes over 2,752 SF sell for about $231K (61%) more than homes under 2,190 SF
The average is $612K for homes over 2,752 SF and $381K for homes under 2,190 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 $194 per SF for homes over 2,752 SF and $191 per SF for homes under 2,190 SF. It does not move in a straight line; homes over 2,752 SF are highest. Defined in 8.1.2.
– No clear difference · could be chance
4.5 Year built: no clear difference
The median is 2018 for homes over 2,752 SF and 2019 for homes under 2,190 SF. It does not move in a straight line; homes under 2,190 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 50 days for homes over 2,752 SF and 48 days for homes under 2,190 SF. It does not move in a straight line; homes 2,190–2,568 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 2,752 SF and 6.1% for homes under 2,190 SF. It does not move in a straight line; homes 2,190–2,568 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.
57% of homes over 2,752 SF had a price cut before sale, against 43% of homes under 2,190 SF. Defined in 8.1.7.
57% of homes over 2,752 SF had the seller pay closing costs or repairs, against 71% of homes under 2,190 SF. Defined in 8.1.8.
36% of homes over 2,752 SF have a view, against 36% of homes under 2,190 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 2,190 SF14 sales
2,190–2,568 SF14 sales
2,577–2,752 SF14 sales
Over 2,752 SF14 sales
All56 sales
Real difference?
Net sale price average
$380,551
$423,529
$450,895
$611,554
$466,632
✓ large
Net price per SF average
$191
$177
$170
$194
$183
unclear
Living area average
2,004
2,391
2,658
3,146
2,550
by design
Year built median
2019
2018
2018
2018
2018
unclear
4.10 The numbers: selling
Under 2,190 SF14 sales
2,190–2,568 SF14 sales
2,577–2,752 SF14 sales
Over 2,752 SF14 sales
All56 sales
Real difference?
Days on market median
48
105
100
50
76
unclear
Discount from original list average
6.1%
9.3%
8.5%
5.5%
7.4%
unclear
Price cut before sale
43%
64%
50%
57%
54%
unclear
Seller paid closing costs or repairs
71%
64%
57%
57%
62%
unclear
Has a view
36%
21%
43%
36%
34%
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 · 56 sales · October 26, 2025 – October 25, 2026
Sales ranked by year built and cut into four groups, from the oldest to the newest. Homes built in the same year always stay in the same group, so group sizes can differ a little.
Bottom line: no measure differs enough between the groups to rule out chance.
5.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
5.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Before 2017
2017–2018
2019
After 2019
Real difference?
Net sale price
$483K
$450K
$412K
$488K
unclear
Net price per SF
$178 per SF
$182 per SF
$183 per SF
$186 per SF
unclear
Living area
2,700 SF
2,478 SF
2,259 SF
2,612 SF
unclear
Days on market
74 days
54 days
70 days
82 days
unclear
Discount from original list
7.3%
7.0%
4.7%
8.6%
unclear
Price cut before sale
42%
56%
50%
60%
unclear
Seller paid closing costs or repairs
75%
72%
67%
45%
unclear
Has a view
25%
33%
33%
40%
unclear
5.3 Net sale price: no clear difference
The average is $488K for homes built after 2019 and $483K for homes built before 2017. It does not move in a straight line; homes built after 2019 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 $186 per SF for homes built after 2019 and $178 per SF for homes built before 2017. It rises step by step from the lowest range to the highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Living area: no clear difference
The average is 2,612 SF for homes built after 2019 and 2,700 SF for homes built before 2017. It does not move in a straight line; homes built before 2017 are highest. Defined in 8.1.3.
– No clear difference · could be chance
5.6 Days on market: no clear difference
The median is 82 days for homes built after 2019 and 74 days for homes built before 2017. It does not move in a straight line; homes built after 2019 are highest. Defined in 8.1.5.
– No clear difference · could be chance
5.7 Discount from original list: no clear difference
The average is 8.6% for homes built after 2019 and 7.3% for homes built before 2017. It does not move in a straight line; homes built after 2019 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.
60% of homes built after 2019 had a price cut before sale, against 42% of homes built before 2017. Defined in 8.1.7.
45% of homes built after 2019 had the seller pay closing costs or repairs, against 75% of homes built before 2017. Defined in 8.1.8.
40% of homes built after 2019 have a view, against 25% of homes built before 2017. 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 201712 sales
2017–201818 sales
20196 sales
After 201920 sales
All56 sales
Real difference?
Net sale price average
$483,396
$450,013
$411,858
$487,962
$466,632
unclear
Net price per SF average
$178
$182
$183
$186
$183
unclear
Living area average
2,700
2,478
2,259
2,612
2,550
unclear
Year built median
2015
2018
2019
2020
2018
by design
5.10 The numbers: selling
Before 201712 sales
2017–201818 sales
20196 sales
After 201920 sales
All56 sales
Real difference?
Days on market median
74
54
70
82
76
unclear
Discount from original list average
7.3%
7.0%
4.7%
8.6%
7.4%
unclear
Price cut before sale
42%
56%
50%
60%
54%
unclear
Seller paid closing costs or repairs
75%
72%
67%
45%
62%
unclear
Has a view
25%
33%
33%
40%
34%
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 · 56 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. 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
$491K
$460K
unclear
Net price per SF
$189 per SF
$180 per SF
unclear
Living area
2,592 SF
2,550 SF
unclear
Year built
2019
2018
unclear
Days on market
57 days
81 days
unclear
Discount from original list
7.8%
6.9%
unclear
Price cut before sale
53%
58%
unclear
Seller paid closing costs or repairs
63%
64%
unclear
6.3 Net sale price: no clear difference
The average is $491K for homes with a view and $460K 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 $189 per SF for homes with a view and $180 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 2,592 SF for homes with a view and 2,550 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 2019 for homes with a view and 2018 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 57 days for homes with a view and 81 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 7.8% for homes with a view and 6.9% 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.
53% of homes with a view had a price cut before sale, against 58% of homes without a view. Defined in 8.1.7.
63% of homes with a view had the seller pay closing costs or repairs, against 64% 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
View19 sales
No view33 sales
All52 sales
Real difference?
Net sale price average
$491,268
$459,958
$471,398
unclear
Net price per SF average
$189
$180
$183
unclear
Living area average
2,592
2,550
2,565
unclear
Year built median
2019
2018
2018
unclear
6.11 The numbers: selling
View19 sales
No view33 sales
All52 sales
Real difference?
Days on market median
57
81
78
unclear
Discount from original list average
7.8%
6.9%
7.2%
unclear
Price cut before sale
53%
58%
56%
unclear
Seller paid closing costs or repairs
63%
64%
63%
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 Rancho Sienna.
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
56 resale sales. Average $466,632; median $439,650; standard deviation $112,657; middle half (25th–75th percentile) $380,000–$544,175; lowest $284,681, highest $771,000. 35 sales had a seller payment; their median payment was $10,000.
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
56 resale sales. Average $183; median $184; standard deviation $25; middle half (25th–75th percentile) $170–$201; lowest $110, highest $250.
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
56 resale sales. Average 2,550; median 2,572; standard deviation 451; middle half (25th–75th percentile) 2,187–2,760; lowest 1,465, highest 3,798.
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
56 resale sales. Average 2018; median 2018; standard deviation 2; middle half (25th–75th percentile) 2017–2020; lowest 2013, highest 2021.
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
56 resale sales. Average 95; median 76; standard deviation 88; middle half (25th–75th percentile) 30–127; lowest 0, highest 409. 1 sales went under contract on their listing date (0 days).
8.1.6 Discount from original list
In simple terms
How far below the first asking price the home sold, after seller payments. It measures how much negotiating room sellers gave up. A negative figure means the home sold above its first asking price.
Statistically
Discount % = (OriginalListPrice − Net) ÷ OriginalListPrice × 100, per sale; summarized by the mean.
The data
56 resale sales. Average 7.4%; median 6.8%; standard deviation 6.3%; middle half (25th–75th percentile) 2.2%–10.1%; lowest −1.1%, highest 24.7%. 1 sales closed above their first asking price.
8.1.7 Price cut before sale
In simple terms
The asking price was lowered at least once before the home went under contract.
Statistically
Indicator: ListPrice at close < OriginalListPrice. Reported as the share of sales (%).
The data
30 of 56 resale sales (53.6%).
8.1.8 Seller paid closing costs or repairs
In simple terms
The seller paid some of the buyer's closing costs or repairs.
Statistically
Indicator: ACTRIS_BuyersClsgCostPdbySell + ACTRIS_RepairsAmount > 0. Reported as the share of sales (%).
The data
35 of 56 resale sales (62.5%).
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
19 sales with a view, 33 without, 4 unclassified. Most common View entries: None 20, Neighborhood 18, Park/Greenbelt 6, Hill Country 6, Trees/Woods 5, See Remarks 4, Pond 3, Lake 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 = Georgetown, SubdivisionName contains any of “rancho sienna” (case-insensitive). A record is kept when its subdivision name belongs to the Rancho Sienna family, the same rule comparable sales use.
The data
Pulled October 26, 2026: 56 closed Rancho Sienna records over the prior year, in ZIP 78628. 24 subdivision spellings kept, the most common: Rancho Sienna (25); Rancho Sienna Sec 16 (3); Rancho Sienna Sec 01 (2); Rancho Sienna Ph 2 Sec 4 (2); Rancho Sienna Sec 5B (2); Rancho Sienna Sec 7 (2); Rancho Sienna Sec 15 (2); RANCHO SIENNA (2); Rancho Sienna Sec 18B (1); Rancho Sienna Sec 5A (1); Rancho Sienna Sec 13A & 13B (1); Rancho Sienna Sec 19B (1); and 12 more (12 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 33 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from October 26, 2025 to October 25, 2026 inclusive.
The data
56 single-family sales in the window: 56 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
56 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 $380K”.
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 $380K: $284,681–$379,200 (13 sales); $380K–$439K: $380,000–$439,299 (15 sales); $440K–$540K: $440,000–$539,900 (14 sales); Over $540K: $557,000–$771,000 (14 sales) Quartiles by living area: Under 2,190 SF: 1,465–2,178 SF (14 sales); 2,190–2,568 SF: 2,190–2,568 SF (14 sales); 2,577–2,752 SF: 2,577–2,752 SF (14 sales); Over 2,752 SF: 2,786–3,798 SF (14 sales) Quartiles by year built: Before 2017: 2013–2016 (12 sales); 2017–2018: 2017–2018 (18 sales); 2019: 2019–2019 (6 sales); After 2019: 2020–2021 (20 sales) View and no view: View: MLS lists a view (19 sales); No view: None or Neighborhood (33 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 $466,632, median $439,650. Days on market: average 95, median 76: 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
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 = 17.92
3
0.0005
p < 0.0063
Yes
ε² = 0.326
large
Living area
Kruskal–Wallis
H = 33.60
3
< 0.0001
p < 0.0063
Yes
ε² = 0.611
large
Year built
Kruskal–Wallis
H = 4.43
3
0.2189
p < 0.0063
Unclear
ε² = 0.080
medium
Days on market
Kruskal–Wallis
H = 3.80
3
0.2836
p < 0.0063
Unclear
ε² = 0.069
medium
Discount from original list
Kruskal–Wallis
H = 6.38
3
0.0947
p < 0.0063
Unclear
ε² = 0.116
medium
Price cut before sale
Chi-square
χ² = 4.01
3
0.2604
p < 0.0063
Unclear
Cramér’s V = 0.268
small
Seller paid closing costs or repairs
Chi-square
χ² = 2.88
3
0.4104
p < 0.0063
Unclear
Cramér’s V = 0.227
small
Has a view
Chi-square
χ² = 4.46
3
0.2161
p < 0.0063
Unclear
Cramér’s V = 0.282
small
8.3.2 Quartiles by living area
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 31.00
3
< 0.0001
p < 0.0063
Yes
ε² = 0.564
large
Net price per SF
Kruskal–Wallis
H = 7.57
3
0.0558
p < 0.0063
Unclear
ε² = 0.138
medium
Year built
Kruskal–Wallis
H = 0.92
3
0.8199
p < 0.0063
Unclear
ε² = 0.017
small
Days on market
Kruskal–Wallis
H = 3.81
3
0.2827
p < 0.0063
Unclear
ε² = 0.069
medium
Discount from original list
Kruskal–Wallis
H = 3.24
3
0.3558
p < 0.0063
Unclear
ε² = 0.059
small
Price cut before sale
Chi-square
χ² = 1.44
3
0.6971
p < 0.0063
Unclear
Cramér’s V = 0.160
small
Seller paid closing costs or repairs
Chi-square
χ² = 0.84
3
0.8403
p < 0.0063
Unclear
Cramér’s V = 0.122
small
Has a view
Chi-square
χ² = 1.51
3
0.6792
p < 0.0063
Unclear
Cramér’s V = 0.164
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 = 3.05
3
0.3840
p < 0.0063
Unclear
ε² = 0.055
small
Net price per SF
Kruskal–Wallis
H = 0.72
3
0.8696
p < 0.0063
Unclear
ε² = 0.013
small
Living area
Kruskal–Wallis
H = 5.14
3
0.1621
p < 0.0063
Unclear
ε² = 0.093
medium
Days on market
Kruskal–Wallis
H = 1.07
3
0.7851
p < 0.0063
Unclear
ε² = 0.019
small
Discount from original list
Kruskal–Wallis
H = 2.16
3
0.5390
p < 0.0063
Unclear
ε² = 0.039
small
Price cut before sale
Chi-square
χ² = 1.08
3
0.7830
p < 0.0063
Unclear
Cramér’s V = 0.139
small
Seller paid closing costs or repairs
Chi-square
χ² = 4.18
3
0.2423
p < 0.0063
Unclear
Cramér’s V = 0.273
small
Has a view
Chi-square
χ² = 0.76
3
0.8591
p < 0.0063
Unclear
Cramér’s V = 0.116
small
8.3.4 View and no view
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Mann–Whitney U
U = 394.00
—
0.1284
p < 0.0063
Unclear
rank-biserial r = 0.257
small
Net price per SF
Mann–Whitney U
U = 389.00
—
0.1541
p < 0.0063
Unclear
rank-biserial r = 0.241
small
Living area
Mann–Whitney U
U = 337.00
—
0.6621
p < 0.0063
Unclear
rank-biserial r = 0.075
negligible
Year built
Mann–Whitney U
U = 341.00
—
0.6024
p < 0.0063
Unclear
rank-biserial r = 0.088
negligible
Days on market
Mann–Whitney U
U = 260.00
—
0.3138
p < 0.0063
Unclear
rank-biserial r = 0.171
small
Discount from original list
Mann–Whitney U
U = 324.00
—
0.8493
p < 0.0063
Unclear
rank-biserial r = 0.033
negligible
Price cut before sale
Chi-square
χ² = 0.12
1
0.7296
p < 0.0063
Unclear
Cramér’s V = 0.048
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 0.00
1
0.9725
p < 0.0063
Unclear
Cramér’s V = 0.005
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.