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Cooperative Building (Residential)Residential

307 PROSPECT PL

BROOKLYN, NY 11238
2,900 ft²
Lot SizeThe size of the land the home sits on, from county records.
1931
Year BuiltThe year the home was originally built, according to county records.
4
StoriesHow many floors the home has above ground.
Built 193116 units7,192–7,192 ft²
$16M
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.
$1.3M
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$77
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-92.9%vs the Brooklyn ZIP median sale $/ft² ($1080)

Sales Performance

$550K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
6.3%
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
20042005200820122013201520172026

10 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.

Studio
16 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.

$445K–$555K
4 units
$616K–$616K
1 unit
$690K–$690K
1 unit
$910K–$910K
1 unit
$1.3M–$1.4M
9 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.94%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.5.0 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.100%
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.0%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$551,765
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 2BJul 21, 2026$550,000Unit 2DJan 24, 2017$412,000Unit 1ANov 24, 2015$270,000Unit 2DJun 29, 2013$318,000Unit 2CJun 26, 2012$248,000Unit 1CMar 9, 2012$216,000Unit 2DAug 7, 2008$220,000Unit 2COct 24, 2005$178,000Unit 2CNov 10, 2004$150,000Unit 3AAug 24, 2004$122,500

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.$83,252 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$676,530 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$91,710
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$584,820
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$751,050
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,711,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Cooperative Building (Residential)
CountyKings
Lot (acres)The size of the land the home sits on, from county records.0.07
HeatingThe type of heating system in the home.None
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.

E
P.S. 9 Teunis G. Bergen SchoolC+
Elementary · Grades PK–5 · 0.1 mi

District: New York City Geographic School District 13

Neighborhood · ZIP 11238These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.57,639
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.59,801 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,241
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$172,461
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.55%

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.

307 Prospect Pl
7,192 ft²
$1.3M
307 Prospect Pl Apt 1a
$445K
307 Prospect Pl Apt 1b
$1.3M
307 Prospect Pl Apt 1c
$541K
307 Prospect Pl Apt 1d
$1.3M
307 Prospect Pl Apt 2a
$1.3M
307 Prospect Pl # 2b
7,192 ft²
$555K
307 Prospect Pl Apt 2c
$616K
307 Prospect Pl Apt 2d
$910K
307 Prospect Pl Apt 3a
$541K
307 Prospect Pl Apt 3b
$1.3M
307 Prospect Pl Apt 3c
$690K
307 Prospect Pl Apt 3d
$1.3M
307 Prospect Pl Apt 4a
$1.3M
307 Prospect Pl Apt 4b
$1.3M
307 Prospect Pl Apt 4c
$1.4M
307 Prospect Pl Apt 4d
$1.3M

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

About 307 Prospect Pl

How many units are in 307 Prospect Pl, Brooklyn, NY?

307 Prospect Pl, Brooklyn, NY has 16 residential units across built in 1931, according to county assessor records.

What is a unit at 307 Prospect Pl, Brooklyn, NY worth?

The median TopHap Estimate across the 16 units at 307 Prospect Pl, Brooklyn, NY is $1,264,259. That works out to $77 per square foot. Units run from 7,192 to 7,192 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 307 Prospect Pl, Brooklyn, NY expensive for Brooklyn?

Units at 307 Prospect Pl, Brooklyn, NY carry a median of $77 per square foot, 93% below the Brooklyn median of $1080 per square foot.

How often do units sell at 307 Prospect Pl, Brooklyn, NY?

1 units at 307 Prospect Pl, Brooklyn, NY sold in the last 12 months, out of 10 recorded arms-length sales all time. That is a turnover rate of 6.3% of the building per year. The median sale over that period was $550K.

Have units at 307 Prospect Pl, Brooklyn, NY appreciated?

Across 3 repeat sales of the same unit, 307 Prospect Pl, Brooklyn, NY returned a median 7.5% 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 4.9 years.

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Assigned schools

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