CondominiumResidential
4 RIVER RUN
WILLIAMSTOWN, MA 01267
3.22 ac
Lot SizeThe size of the land the home sits on, from county records.
2019
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
Built 18804 floors62 units736–2,093 ft²
$37M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$620K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$531
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
+279.2%vs the Williamstown ZIP median sale $/ft² ($140)
Sales Performance
$605K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-3.2%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
6
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
9.7%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
2023202420252026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
2023202420252026
39 arms-length sales on record for this building.
Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
1 bd2 bd3 bd
1 bed
14 units$471K · $435/ft²
2 bed
39 units$638K · $538/ft²
3 bed
9 units$1M · $541/ft²
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bd · 2 ba · 971 ft²
4 units$424K · $437/ft²
2 bd · 2 ba · 1,069 ft²
3 units$640K · $599/ft²
2 bd · 2 ba · 1,213 ft²
3 units$675K · $557/ft²
3 bd · 2 ba · 1,651 ft²
3 units$1.1M · $638/ft²
1 bd · 1 ba · 736 ft²
2 units$459K · $623/ft²
1 bd · 1 ba · 900 ft²
2 units$174K · $193/ft²
2 bd · 2 ba · 1,157 ft²
2 units$610K · $527/ft²
2 bd · 2 ba · 1,250 ft²
2 units$703K · $563/ft²
One-off layouts
41 units
Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.
$167K–$281K
6 units
$290K–$299K
3 units
$422K–$508K
11 units
$534K–$636K
12 units
$640K–$741K
17 units
$762K–$857K
4 units
$962K–$969K
3 units
$1M–$1.1M
5 units
Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.
Floor 1
$391/ft²13 units · -26%
Floor 2
$473/ft²14 units · -11%
Floor 3
$524/ft²11 units · -1%
Floor 4
$573/ft²10 units · +8%
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·10
$628/ft²4 units · +18%
Line ·01
$584/ft²4 units · +10%
Line ·12
$549/ft²4 units · +3%
Line ·05
$535/ft²3 units · +1%
Line ·03
$516/ft²4 units · -3%
Line ·07
$477/ft²4 units · -10%
Line ·02
$457/ft²4 units · -14%
Line ·04
$411/ft²4 units · -23%
Line ·08
$404/ft²3 units · -24%
Line ·09
$291/ft²4 units · -45%
Ownership & Financing
Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.73%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.49%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.2.6 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.74%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.27%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$678,048
Median tax billThe middle annual property tax bill among the building's units.$8,170
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0
Recent SalesThe latest recorded arms-length sales in the building, newest first.
Unit 103Aug 6, 2026$545,000$467/ft²Unit 407Jul 15, 2026$1,100,000$526/ft²Unit 209Apr 29, 2026$495,000$382/ft²Unit 11Jan 13, 2026$765,000$499/ft²Unit 403Dec 11, 2025$665,000$685/ft²Unit 102Oct 30, 2025$220,000$121/ft²Unit 114Oct 3, 2025$450,000$350/ft²Unit 302Jul 18, 2025$625,000$515/ft²Unit 212Jun 16, 2025$625,000$500/ft²Unit 301May 19, 2025$975,000$591/ft²
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,508 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,021,700 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,021,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$963,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,003,991
Climate Risk
Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.22
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
10
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.154 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyBERKSHIRE
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(1)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EM
Williamstown Elementary SchoolA-
Elementary · Grades PK–6 · 0.7 mi
Mount Greylock Regional High SchoolB+
Middle · Grades 7–12 · 3.2 mi
District: Mount Greylock School District
Neighborhood · ZIP 01267These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.58
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54
Index scale: 100 = US average (tick). Lower is better.
Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.80%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.8,406
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.139 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,851
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,416
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.50%
All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.
160 Water St # 10
2 bd · 1.5 ba · 1,029 ft²
160 Water St # 11
2 bd · 2.5 ba · 1,532 ft²
160 Water St # 12
2 bd · 2 ba · 1,056 ft²
160 Water St # 20
3 bd · 2.5 ba · 1,793 ft²
160 Water St # 21
2 bd · 1.5 ba · 1,367 ft²
160 Water St # 22
2 bd · 2 ba · 1,555 ft²
160 Water St # 23
2 bd · 2 ba · 1,388 ft²
160 Water St # 24
2 bd · 2 ba · 1,609 ft²
160 Water St # 25
2 bd · 2 ba · 1,190 ft²
160 Water St # 26
2 bd · 2 ba · 1,234 ft²
160 Water St # 27
2 bd · 2 ba · 1,196 ft²
160 Water St # 28
2 bd · 1.5 ba · 1,223 ft²
160 Water St # 29
2 bd · 2 ba · 1,260 ft²
160 Water St # 101
2 bd · 2 ba · 1,531 ft²
160 Water St # 102
3 bd · 2.5 ba · 1,824 ft²
160 Water St # 103
2 bd · 1.5 ba · 1,166 ft²
160 Water St # 104
2 bd · 1.5 ba · 971 ft²
160 Water St # 106
2 bd · 1.5 ba · 1,053 ft²
4 River Run
2 bd · 2.5 ba · 2,037 ft²
160 Water St # 107
2 bd · 1 ba · 944 ft²
160 Water St # 108
1 bd · 1 ba · 808 ft²
160 Water St # 109
1 bd · 1 ba · 1,100 ft²
160 Water St # 110
2 bd · 1.5 ba · 1,018 ft²
160 Water St # 112
1 bd · 1.5 ba · 850 ft²
160 Water St # 113
1 bd · 2 ba · 1,749 ft²
160 Water St # 114
1 bd · 1.5 ba · 1,287 ft²
160 Water St # 115
1 bd · 1.5 ba · 1,071 ft²
160 Water St # 201
3 bd · 2 ba · 1,651 ft²
160 Water St # 202
2 bd · 2 ba · 1,213 ft²
160 Water St # 203
2 bd · 2 ba · 971 ft²
160 Water St # 204
2 bd · 2 ba · 1,668 ft²
160 Water St # 205
2 bd · 2 ba · 1,055 ft²
160 Water St # 206
2 bd · 1 ba · 1,045 ft²
160 Water St # 207
2 bd · 1 ba · 980 ft²
160 Water St # 208
2 bd · 2 ba · 961 ft²
160 Water St # 209
1 bd · 1 ba · 1,296 ft²
160 Water St # 210
2 bd · 2 ba · 1,068 ft²
160 Water St # 212
2 bd · 2 ba · 1,250 ft²
160 Water St # 213
1 bd · 2 ba · 1,787 ft²
160 Water St # 214
1 bd · 2 ba · 1,093 ft²
160 Water St # 215
1 bd · 1 ba · 1,106 ft²
160 Water St # 301
3 bd · 2 ba · 1,651 ft²
160 Water St # 302
2 bd · 2 ba · 1,213 ft²
160 Water St # 303
2 bd · 2 ba · 971 ft²
160 Water St # 304
2 bd · 2 ba · 1,157 ft²
160 Water St # 305
2 bd · 2 ba · 1,069 ft²
160 Water St # 307
3 bd · 2.5 ba · 2,093 ft²
160 Water St # 308
2 bd · 2 ba · 962 ft²
160 Water St # 309
1 bd · 1 ba · 900 ft²
160 Water St # 310
2 bd · 2 ba · 1,069 ft²
160 Water St # 311
1 bd · 1 ba · 736 ft²
160 Water St # 312
2 bd · 2 ba · 1,250 ft²
160 Water St # 401
3 bd · 2 ba · 1,651 ft²
160 Water St # 402
2 bd · 2 ba · 1,213 ft²
160 Water St # 403
2 bd · 2 ba · 971 ft²
160 Water St # 404
2 bd · 2 ba · 1,157 ft²
160 Water St # 405
2 bd · 2 ba · 1,069 ft²
160 Water St # 407
3 bd · 2.5 ba · 2,093 ft²
160 Water St # 409
1 bd · 1 ba · 900 ft²
160 Water St # 410
3 bd · 2 ba · 1,492 ft²
160 Water St # 411
1 bd · 1 ba · 736 ft²
160 Water St # 412
3 bd · 2.5 ba · 1,780 ft²
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 160 Water St
How many units are in 160 Water St, Williamstown, MA?
160 Water St, Williamstown, MA has 62 residential units across 4 floors, built in 1880, according to county assessor records.
What is a unit at 160 Water St, Williamstown, MA worth?
The median TopHap Estimate across the 62 units at 160 Water St, Williamstown, MA is $620,168. That works out to $531 per square foot. Units run from 736 to 2,093 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 160 Water St, Williamstown, MA expensive for Williamstown?
Units at 160 Water St, Williamstown, MA carry a median of $531 per square foot, 279% above the Williamstown median of $140 per square foot.
How often do units sell at 160 Water St, Williamstown, MA?
6 units at 160 Water St, Williamstown, MA sold in the last 12 months, out of 39 recorded arms-length sales all time. That is a turnover rate of 9.7% of the building per year. The median sale over that period was $605K.
What floor plans does 160 Water St, Williamstown, MA have?
The most common plan at 160 Water St, Williamstown, MA is a 2-bedroom of 971 square feet, repeated 4 times, with a median estimate of $424,410. TopHap identifies 8 recurring plans in the building.
More homes on River Run
- 6 River Run$1.4M2 bd · 2.5 ba · 2,499 ft² · Sold $850K · Oct 2026
- 1 River Run$939K3 bd · 2 ba · 1,811 ft² · Sold $860K · Jun 2023
- 10 River Run$1.4M2 bd · 2.5 ba · 2,499 ft² · Sold $1M · Dec 2022
- 1 River Run # 3$979K3 bd · 2 ba · 1,580 ft² · Sold $740K · Dec 2020
- 1 River Run # 4$999K3 bd · 2 ba · 1,696 ft² · Sold $743K · Oct 2020
- 1 River Run # 2$931K2 bd · 2 ba · 1,466 ft² · Sold $623K · Oct 2020
- 2 River Run$1.3M3 bd · 2.5 ba · 2,499 ft² · Sold $950K · Aug 2020
- 1 River Run # 6$934K3 bd · 2 ba · 1,570 ft² · Sold $733K · Jul 2020
- 1 River Run # 5$883K2 bd · 2 ba · 1,522 ft² · Sold $685K · Jun 2020
- River Run1.38 ac · Sold Jan 1900
- 8 River Run$895K2 bd · 2.5 ba · 2,037 ft² · Sold Jan 1900
- 12 River Run$1.1M2 bd · 2.5 ba · 2,037 ft² · Sold Jan 1900
Closest homes
- 160 Water St$636K0 ft · 2 bd · 2 ba · 1,157 ft² · Sold $595K · Jun 2023
- 160 Water St$675K0 ft · 2 bd · 2 ba · 1,213 ft² · Sold $625K · Jul 2025
- 160 Water St$1.1M0 ft · 3 bd · 2 ba · 1,651 ft² · Sold $975K · May 2025
- 160 Water St$582K0 ft · 2 bd · 1 ba · 980 ft² · Sold $525K · Mar 2024
- 160 Water St$468K0 ft · 2 bd · 2 ba · 1,668 ft² · Sold Jan 1900
- 160 Water St$425K0 ft · 1 bd · 1 ba · 1,100 ft² · Sold Jan 1900
- 160 Water St$449K0 ft · 2 bd · 2 ba · 1,055 ft² · Sold Jan 1900
- 160 Water St$422K0 ft · 1 bd · 1 ba · 736 ft² · Sold $375K · Dec 2024
More homes in Williamstown 01267
- 46 Summer St$269K2 bd · 1 ba · 1,040 ft² · Sold $253K · Oct 2026
- 53 Cole Ave$450K6 bd · 1.5 ba · 2,631 ft² · Sold $435K · Sep 2026
- 200 Knolls Rd$1.1M3 bd · 3.5 ba · 2,488 ft² · Sold $1.3M · Sep 2026
- 132 Main St$319K2 bd · 3.5 ba · 1,971 ft² · Sold $310K · Sep 2026
- 16 Windflower Way$462K3 bd · 2 ba · 1,931 ft² · Sold $270K · Sep 2026
- 1020 Simonds Rd$699K3 bd · 1 ba · 2,780 ft² · Sold $699K · Sep 2026
- 189 Stratton Rd$240K2 bd · 1 ba · 706 ft² · Sold $170K · Sep 2026
- 201 Stratton Rd$2.8M5 bd · 4.5 ba · 2,127 ft² · Sold $2.8M · Sep 2026
- 132 White Oaks Rd$544K4 bd · 1.5 ba · 2,238 ft² · Sold $540K · Aug 2026
- 194 Whitman Rd$526K3 bd · 1.5 ba · 1,692 ft² · Sold $643K · Aug 2026
- 324 Oblong Rd$566K3 bd · 2 ba · 1,800 ft² · Sold $563K · Aug 2026
- 1491 Hancock Rd$652K4 bd · 2 ba · 1,760 ft² · Sold $365K · Aug 2026
Assigned schools
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