The listing facts are current enough for an initial property review.
for saleRealtyLens property overview
$1,750,000
318 21st St
Brooklyn, NY, 11215
View more Brooklyn, NY property pages5Beds
2.5Baths
2,527Sqft
$693$/sqft
Listing Notes
Bring your contractor or architect! Create two income producing rental units, or the single family home of your dreams! This 17 wide Greenwood Heights two unit townhouse sits on a 100 lot, and could potentially be expanded by adding an extension or another level. The house generated steady rental income for decades, and is now being delivered vacant. Its current configuration is a lower garden duplex with 3BR/1.5BA and an upper 1.5BR/1BA floor-through unit. Ideally located in the charming enclave of Greenwood Heights, 318 21st Street is minutes from Green-Wood Cemetery, wonderful dining and entertainment options, PS 10 and is convenient to several public transportation options.
Market Insights
Below nearby median-53%
$693/sqft vs a nearby median of $1480/sqft.
Nearby median$1480/sqft
Nearby properties12
Property size2,527 sqft
- -53% versus the nearby median price per square foot.
- Price history is limited, so current comps matter more than trend alone.
- 2,527 sqft creates a usable price-per-square-foot read.
Pricing Read
Yardstick fair value$3.67M$3.33M – $4.00M · 50% confidence
vs ask $1.75M−$1.92M (−109.4%)
Asking price is about 109.4% below the fair value — likely to draw competing offers if it's still on market.
$1,480/sqft median across 8 tight comps × 2,527 sqft= $3.74M
- Visible condition issues−$187k −5.0%
- Pre-war character+$94k +2.5%
- Transit access+$19k +0.5%
Cumulative NYC adjustments−$75k−2.0%
Property Read
The asking price per square foot is below the nearby median, which can be worth a closer comp check.
Price history is still limited; review again as more market activity becomes available.
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Listing Details
- Days on market
- 41 days
- Last price change
- No change recorded
- Listed
- Apr 2, 2026
- Photos
- 15 photos
- Property type
- multi family
- Status
- for sale
- Last sold
- Apr 26, 2000 · $200,000
Features & Amenities
Outdoor SpaceSecurity FeaturesFireplaceWasher DryerTwo Or More StoriesRental PropertyDen
Photos
Building Facts
- Year built
- 1940
- Stories
- 2
- Total units
- 2
- Residential units
- 2
- Building area
- 2,040 sqft
- Lot size
- 1,711 sqft
- Land use
- One and two family buildings
- Building class
- B2
From NYC public records where available.
Price History
May 4, 2026Initial record
$1,750,000for sale
Public Records
DOB violations0 open
0 total recorded against the building
HPD violations0 open
0 total recorded
ACRIS documents42
Tax-lot deed, mortgage, and transfer records on file
311 calls (12 mo)29,819
Top: illegal parking
Top complaint types in ZIP 11215
- Illegal Parking6,063
- HEAT/HOT WATER2,144
- Street Condition1,124
- Noise - Residential944
- Snow or Ice941
Sourced from NYC Open Data (DOB, HPD, ACRIS). Updated as the city republishes — check the original source for live status.