The listing facts are current enough for an initial property review.
for saleRealtyLens property overview
$750,000
630 Union St Apt 1C
Brooklyn, NY, 11215
View more Brooklyn, NY property pages2Beds
1Baths
675Sqft
$1111$/sqft
Listing Notes
630 Union Street is a condo building in Brooklyn, NY. It was built in 1909 and has 5 stories and 30 units. This wonderful 2 bedroom, 1 bath unit needs a full gut renovation. The price is slightly negotiable.
Market Insights
Below nearby median-14%
$1111/sqft vs a nearby median of $1285/sqft.
Nearby median$1285/sqft
Nearby properties12
Property size675 sqft
- -14% versus the nearby median price per square foot.
- Price history is limited, so current comps matter more than trend alone.
- 675 sqft creates a usable price-per-square-foot read.
Pricing Read
Yardstick fair value$832k$766k – $898k · 61% confidence
vs ask $750k−$82k (−10.9%)
Asking price is about 10.9% below the fair value — likely to draw competing offers if it's still on market.
$1,285/sqft median across 4 tight comps × 675 sqft= $867k
- Visible condition issues−$43k −5.0%
- Open Class C HPD violations−$39k −4.5%
- Transit access+$35k +4.0%
- Days-on-market gravity−$26k −3.0%
- Pre-war character+$22k +2.5%
- High-density walkability+$17k +2.0%
Cumulative NYC adjustments−$35k−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
- 473 days
- Last price change
- No change recorded
- Listed
- Jan 24, 2025
- Photos
- 4 photos
- Property type
- condos
- Status
- for sale
- Last sold
- Sep 12, 2025 · $534,581
Features & Amenities
Two Or More Stories
Building Facts
- Year built
- 1909
- Stories
- 5
- Total units
- 30
- Residential units
- 30
- Building area
- 20,202 sqft
- Lot size
- 7,465 sqft
- Land use
- Multi-family walk-up buildings
- Building class
- R2
From NYC public records where available.
Price History
May 4, 2026Initial record
$750,000for sale
Public Records
DOB violations21 open
22 total recorded against the building
HPD violations9 open
3 class C (immediately hazardous)
ACRIS documents0
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
Recent DOB
- Jun 30, 2023V-DOB VIOLATION - ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED
- Jun 30, 2023V-DOB VIOLATION - ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED
- Jun 30, 2023V-DOB VIOLATION - ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED
- Jun 30, 2023V-DOB VIOLATION - ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED
Recent HPD
- May 6, 2026Class A · (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD S WEBSITE, WWW.NYC.GOV\HPD, SEARCH BE...
- Nov 19, 2025Class I · §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITE...
- Jun 11, 2025Class A · (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD S WEBSITE, WWW.NYC.GOV\HPD, SEARCH BE...
- Nov 26, 2024Class I · §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITE...
Sourced from NYC Open Data (DOB, HPD, ACRIS). Updated as the city republishes — check the original source for live status.