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for saleRealtyLens property overview
$1,988,888
344 21st St
Brooklyn, NY, 11215
View more Brooklyn, NY property pages16Beds
8Baths
5,884Sqft
$338$/sqft
Market Insights
Below nearby median-78%
$338/sqft vs a nearby median of $1565/sqft.
Nearby median$1565/sqft
Nearby properties8
Property size5,884 sqft
- -78% versus the nearby median price per square foot.
- Price history is limited, so current comps matter more than trend alone.
- 5,884 sqft creates a usable price-per-square-foot read.
Pricing Read
Yardstick fair value$8.84M$8.04M – $9.64M · 50% confidence
vs ask $1.99M−$6.85M (−344.5%)
Asking price is about 344.5% below the fair value — likely to draw competing offers if it's still on market.
$1,565/sqft median across 7 tight comps × 5,884 sqft= $9.21M
- Open Class C HPD violations−$276k −3.0%
- Days-on-market gravity−$276k −3.0%
- Pre-war character+$230k +2.5%
- Visible condition issues−$92k −1.0%
- Transit access+$46k +0.5%
Cumulative NYC adjustments−$368k−4.0%
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
- 188 days
- Last price change
- No change recorded
- Listed
- Nov 5, 2025
- Photos
- 9 photos
- Property type
- multi family
- Status
- for sale
Photos
Building Facts
- Year built
- 1931
- Stories
- 4
- Total units
- 8
- Residential units
- 8
- Building area
- 5,884 sqft
- Lot size
- 2,504 sqft
- Land use
- Multi-family walk-up buildings
- Building class
- C1
From NYC public records where available.
Price History
May 4, 2026Initial record
$1,988,888for sale
Public Records
DOB violations0 open
1 total recorded against the building
HPD violations9 open
2 class C (immediately hazardous)
ACRIS documents13
Tax-lot deed, mortgage, and transfer records on file
311 calls (12 mo)29,787
Top: illegal parking
Top complaint types in ZIP 11215
- Illegal Parking6,054
- HEAT/HOT WATER2,144
- Street Condition1,124
- Noise - Residential942
- Snow or Ice941
Recent DOB
- Sep 23, 2024V*-DOB VIOLATION - DISMISSED · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED
Recent HPD
- Apr 11, 2026Class B · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING AND ALL WALLS . IN THE 1st ROOM FROM NORTH LOCATED AT APT 4L, 4th STORY...
- Apr 11, 2026Class C · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4L, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH
- Apr 11, 2026Class B · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE 3rd ROOM FROM NORTH LOCATED AT APT 4L, 4th STORY, 1st APARTM...
- Apr 11, 2026Class B · § 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER THE CEILING IN THE 1st ROOM FROM NORTH LOCATED AT APT 4L, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH
Sourced from NYC Open Data (DOB, HPD, ACRIS). Updated as the city republishes — check the original source for live status.