CooperativeResidential
Last sold for $2,700,000 on Nov 25, 2025
340 RIVERSIDE DR
NEW YORK, NY 10025
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1926
Year BuiltThe year the home was originally built, according to county records.
16
StoriesHow many floors the home has above ground.
Built 192661 units124,351–124,351 ft²
$82M
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.
$896K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$16
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
-98.1%vs the New York ZIP median sale $/ft² ($836)
Sales Performance
$2.3M
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+236.0%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
5
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
8.2%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+2.4%per yeartypical hold 6.7 yrsfrom 11 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20052010201220152017202120232026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20052010201220152017202120232026
37 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.
Studio
Studio
61 units$896K · $16/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.
Studio · 0 ba · 124,351 ft²
10 units$1.9M · $16/ft²
One-off layouts
51 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.
$98K–$98K
1 unit
$588K–$671K
2 units
$894K–$1.1M
37 units
$1.5M–$1.5M
1 unit
$1.7M–$1.8M
2 units
$1.9M–$2.2M
7 units
$2.2M–$2.4M
6 units
$2.6M–$2.9M
5 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.90%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.3%
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.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.$2,164,131
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 8CMay 15, 2026$2,295,000$18/ft²Unit 3AFeb 26, 2026$2,650,000$21/ft²Unit 5DFeb 9, 2026$1,900,000$15/ft²BuildingNov 25, 2025$2,700,000$22/ft²Unit 8DSep 3, 2025$2,225,000$18/ft²Unit 1EJul 2, 2025$100,000$1/ft²Unit 1DJun 26, 2025$683,000$5/ft²Unit 9CNov 7, 2024$2,275,000Unit 6CJul 12, 2024$600,000Unit 2CJul 11, 2024$1,030,000
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$977,300 (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.$8,271,630 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$855,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$7,416,630
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$7,851,150
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$21,120,000
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Cooperative
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyNEW YORK
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1987
Lot (acres)The size of the land the home sits on, from county records.0.25
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(2)
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.
District: New York City Geographic School District 03
Neighborhood · ZIP 10025These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.118
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.115
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.91%
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.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.92,687
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.88,204 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,079
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$169,423
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.58%
Ownership
OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No
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.
340 Riverside Dr
124,351 ft²
340 Riverside Dr Ph
340 Riverside Dr
340 Riverside Dr Apt 1a
340 Riverside Dr Apt 1b
340 Riverside Dr Apt 1c
340 Riverside Dr # 1d
124,351 ft²
340 Riverside Dr # 1e
124,351 ft²
340 Riverside Dr Apt 2a
340 Riverside Dr Apt 2b
340 Riverside Dr Apt 2c
340 Riverside Dr Apt 2d
340 Riverside Dr # 3a
124,351 ft²
340 Riverside Dr Apt 3b
340 Riverside Dr Apt 3c
340 Riverside Dr Apt 3d
340 Riverside Dr Apt 4a
340 Riverside Dr Apt 4b
340 Riverside Dr Apt 4c
340 Riverside Dr Apt 4d
340 Riverside Dr Apt 5a
340 Riverside Dr Apt 5b
340 Riverside Dr Apt 5c
340 Riverside Dr # 5d
124,351 ft²
340 Riverside Dr Apt 6a
340 Riverside Dr # 6b
124,351 ft²
340 Riverside Dr Apt 6c
340 Riverside Dr # 6d
124,351 ft²
340 Riverside Dr Apt 7a
340 Riverside Dr Apt 7b
340 Riverside Dr Apt 7c
340 Riverside Dr Apt 7d
340 Riverside Dr Apt 8a
340 Riverside Dr Apt 8b
340 Riverside Dr # 8c
124,351 ft²
340 Riverside Dr # 8d
124,351 ft²
340 Riverside Dr Apt 9a
340 Riverside Dr Apt 9b
340 Riverside Dr Apt 9c
340 Riverside Dr Apt 9d
340 Riverside Dr Apt 10a
340 Riverside Dr Apt 10b
340 Riverside Dr Apt 10c
340 Riverside Dr # 10d
124,351 ft²
340 Riverside Dr Apt 11a
340 Riverside Dr Apt 11b
340 Riverside Dr Apt 11c
340 Riverside Dr Apt 11d
340 Riverside Dr Apt 12a
340 Riverside Dr Apt 12b
340 Riverside Dr Apt 12c
340 Riverside Dr Apt 12d
340 Riverside Dr Apt 13a
340 Riverside Dr Apt 13b
340 Riverside Dr Apt 13c
340 Riverside Dr Apt 13d
340 Riverside Dr Apt 14a
340 Riverside Dr Apt 14b
340 Riverside Dr Apt 14c
340 Riverside Dr Apt 14d
340 Riverside Dr Apt 15a
340 Riverside Dr Apt 15b
340 Riverside Dr Apt 15c
340 Riverside Dr # 15d
124,351 ft²
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 340 Riverside Dr
How many units are in 340 Riverside Dr, New York, NY?
340 Riverside Dr, New York, NY has 61 residential units across built in 1926, according to county assessor records.
What is a unit at 340 Riverside Dr, New York, NY worth?
The median TopHap Estimate across the 61 units at 340 Riverside Dr, New York, NY is $895,853. That works out to $16 per square foot. Units run from 124,351 to 124,351 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 340 Riverside Dr, New York, NY expensive for New York?
Units at 340 Riverside Dr, New York, NY carry a median of $16 per square foot, 98% below the New York median of $836 per square foot.
How often do units sell at 340 Riverside Dr, New York, NY?
5 units at 340 Riverside Dr, New York, NY sold in the last 12 months, out of 37 recorded arms-length sales all time. That is a turnover rate of 8.2% of the building per year. The median sale over that period was $2.3M.
Have units at 340 Riverside Dr, New York, NY appreciated?
Across 11 repeat sales of the same unit, 340 Riverside Dr, New York, NY returned a median 2.4% 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 6.7 years.
What floor plans does 340 Riverside Dr, New York, NY have?
The most common plan at 340 Riverside Dr, New York, NY is a 0-bedroom of 124,351 square feet, repeated 10 times, with a median estimate of $1,940,684. TopHap identifies 1 recurring plans in the building.
Closest homes
- 340 Riverside Dr Apt 4b$2.3M0 ft · Cooperative
- 340 Riverside Dr Apt 5c$1.7M0 ft · Cooperative · Sold $1.2M · Feb 2006
- 340 Riverside Dr Apt 11c$2.2M0 ft · Cooperative
- 340 Riverside Dr Apt 11b$2.8M0 ft · Cooperative
- 340 Riverside Dr Apt 9c$2.2M0 ft · Cooperative · Sold $2.3M · Nov 2024
- 340 Riverside Dr Apt 4c$993K0 ft · Cooperative
- 340 Riverside Dr Apt 5b$2.4M0 ft · Cooperative
- 340 Riverside Dr$926K0 ft · 124,351 ft² · Sold Nov 2023
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Assigned schools
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