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CondominiumResidential

150 Prospect St

GREENWICH, CT 06830
1989
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 198926 units719–1,474 ft²
$18M
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.
$773K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$587
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-26.4%vs the Greenwich ZIP median sale $/ft² ($798)

Sales Performance

$624K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-20.9%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
2
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
7.7%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+4.8%per yeartypical hold 7.9 yrsfrom 32 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19891992200320072011201820232026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19891992200320072011201820232026

56 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.
$435K$581K$728K$875K719 ft²870 ft²1,021 ft²1,172 ft²1,323 ft²1,474 ft²
1 bd2 bd
1 bed
4 units
2 bed
22 units
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 · 2.5 ba · 1,224 ft²
10 units
2 bd · 2.5 ba · 1,366 ft²
5 units
1 bd · 1 ba · 719 ft²
2 units
1 bd · 1 ba · 755 ft²
2 units
2 bd · 2.5 ba · 1,339 ft²
2 units
2 bd · 2.5 ba · 1,474 ft²
2 units
One-off layouts
3 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.

$435K–$487K
4 units
$504K–$504K
1 unit
$555K–$581K
3 units
$757K–$760K
3 units
$768K–$811K
11 units
$823K–$875K
3 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.62%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.15%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.11.9 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.17%
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.48%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$775,259
Median tax billThe middle annual property tax bill among the building's units.$4,037
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 26Sep 4, 2026$760,000Unit 5Apr 8, 2026$487,930Unit 1Jan 31, 2025$789,000Unit 6Jul 24, 2024$750,000Unit 17Aug 14, 2023$400,000Unit 19Apr 7, 2022$451,252Unit 22Feb 19, 2020$460,000Unit 8Nov 27, 2019$293,700Unit 16May 15, 2019$590,000Unit 14Dec 6, 2018$565,000

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 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
CountyWESTERN CONNECTICUT
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Hamilton Avenue SchoolB-
Elementary · Grades PK–5 · 0.4 mi
M
Western Middle SchoolA
Middle · Grades 6–8 · 1.1 mi
H
Greenwich High SchoolA+
High · Grades 9–12 · 1.7 mi

District: Greenwich School District

Neighborhood · ZIP 06830These 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.110
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.119
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.104

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.27,704
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,501 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$168,325
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$273,728
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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.

150 Prospect St
2 bd · 2.5 ba · 1,224 ft²
$790K
150 Prospect St # 2
2 bd · 2.5 ba · 1,188 ft²
$841K
150 Prospect St # 3
2 bd · 2.5 ba · 1,224 ft²
$792K
150 Prospect St # 4
2 bd · 2.5 ba · 1,224 ft²
$807K
150 Prospect St
2 bd · 2.5 ba · 1,224 ft²
$487K
150 Prospect St # 6
2 bd · 2.5 ba · 1,424 ft²
$777K
150 Prospect St # 7
2 bd · 2.5 ba · 1,224 ft²
$823K
150 Prospect St # 8
2 bd · 2.5 ba · 1,224 ft²
$483K
150 Prospect St # 9
2 bd · 2.5 ba · 1,474 ft²
$875K
150 Prospect St # 10
2 bd · 2.5 ba · 1,224 ft²
$758K
150 Prospect St # 11
2 bd · 2.5 ba · 1,224 ft²
$504K
150 Prospect St # 12
2 bd · 2.5 ba · 1,224 ft²
$571K
150 Prospect St # 13
2 bd · 2.5 ba · 1,224 ft²
$793K
150 Prospect St # 14
2 bd · 2.5 ba · 1,474 ft²
$811K
150 Prospect St # 16
2 bd · 2.5 ba · 1,339 ft²
150 Prospect St # 17
1 bd · 1 ba · 719 ft²
$435K
150 Prospect St # 18
1 bd · 1 ba · 719 ft²
$455K
150 Prospect St # 19
1 bd · 1 ba · 755 ft²
$555K
150 Prospect St # 20
1 bd · 1 ba · 755 ft²
$581K
150 Prospect St # 21
2 bd · 2.5 ba · 1,364 ft²
$776K
150 Prospect St # 22
2 bd · 2.5 ba · 1,339 ft²
$757K
150 Prospect St # 23
2 bd · 2.5 ba · 1,366 ft²
$802K
150 Prospect St # 24
2 bd · 2.5 ba · 1,366 ft²
$773K
150 Prospect St # 25
2 bd · 2.5 ba · 1,366 ft²
$793K
150 Prospect St # 26
2 bd · 2.5 ba · 1,366 ft²
$760K
150 Prospect St # 27
2 bd · 2.5 ba · 1,366 ft²
$768K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 150 Prospect St

How many units are in 150 Prospect St, Greenwich, CT?

150 Prospect St, Greenwich, CT has 26 residential units across built in 1989, according to county assessor records.

What is a unit at 150 Prospect St, Greenwich, CT worth?

The median TopHap Estimate across the 26 units at 150 Prospect St, Greenwich, CT is $772,838. That works out to $587 per square foot. Units run from 719 to 1,474 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 150 Prospect St, Greenwich, CT expensive for Greenwich?

Units at 150 Prospect St, Greenwich, CT carry a median of $587 per square foot, 26% below the Greenwich median of $798 per square foot.

How often do units sell at 150 Prospect St, Greenwich, CT?

2 units at 150 Prospect St, Greenwich, CT sold in the last 12 months, out of 56 recorded arms-length sales all time. That is a turnover rate of 7.7% of the building per year. The median sale over that period was $624K.

Have units at 150 Prospect St, Greenwich, CT appreciated?

Across 32 repeat sales of the same unit, 150 Prospect St, Greenwich, CT returned a median 4.8% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 7.9 years.

What floor plans does 150 Prospect St, Greenwich, CT have?

The most common plan at 150 Prospect St, Greenwich, CT is a 2-bedroom of 1,224 square feet, repeated 10 times, with a median estimate of $773,950. TopHap identifies 6 recurring plans in the building.

More homes on Prospect St

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Assigned schools

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