What the listing does not show
638 Halsey Street
Brooklyn, NY 11233Walk-up apartment buildingHigh risk(partial records)
Listed at $1,550,000. The listing does not mention what city records show: 29 open housing violations, 3 of them immediately hazardous. A buyer can put that on the table before contract. A seller should expect the question.
- Asking
- $1,550,000
- Beds
- Studio
- Baths
- 3 baths
- Size
- 2,466 ft²
- Building
- Walk-up apartment building
- Built
- 1899
- Open housing violations
- 29
- Immediately hazardous
- 3
- Unused residential floor area
- 1,275 ft²
01 / Findings
What to ask about
City records a buyer can raise and a seller should be ready to explain. A reading of open filings, not a forecast.
- 013 open Class C (immediately hazardous) housing violations a buyer can raise, and a seller should be ready to explain.
- 02No Buildings Department file matched this address.
- 03About 1,275 ft² of unused residential floor area the listing does not mention.
- 04The required housing registration expired more than a year ago.
02 / Building
The building
Department of Finance class C0: Walk-up apartments.
- Type
- Walk-up apartment building
- Year built
- 1899
- Floors
- 2
- Units
- 33 residential
- Building area
- 2,466 ft²
- Residential / commercial
- 1,656 / 0 ft²
- Lot
- 1,875 ft²18.75 × 100 ft
- Assessed value
- $135,060Tax assessment, not market value
- Assessed land
- $19,680
- Tax exemption
- None
03 / Zoning
What the lot allows
Zoned R6B. Floor area ratio is how much building the lot can legally hold. Listings rarely spell this out.
Unused residential floor area
1,275ft²
Built at 66% of allowed
Zoning would still allow this much more housing on the lot.
- Commercial FAR allowed
- 0.00
- Community facility FAR
- 2.00
- Affordable housing bonus FAR
- 2.40
- Zoning district
- R6B
04 / Checked
What was checked
A zero means the file exists and is clear. A dash means the city has no file for this address, which is not the same thing.
Housing (HPD)
29
open violations
3 immediately hazardous, 23 hazardous, 2 non-hazardous, 1 informational.
Registration expired, ended Sep 1, 2025. Owner state NY.
Buildings (DOB)
—
no file
No Buildings Department file matched this address.
Penalties (ECB)
—
no file
Penalties are listed with the Buildings file, which is missing here.
05 / Full report
Not on the listing
Sale prices, mortgage amounts and document amounts the city has on file. The listing does not include them.
42 recorded documents · 2 sales of $10,000 or more · Last sale 2022 · Last mortgage 2008
Unlock the recorded amounts for 638 Halsey Street
After you register, the paid report includes who owns the building, plus the amounts below from the city file.
- Owner details
- Last sale price
- Mortgage amount
- Recorded document amounts
Paid report
The rest of 638 Halsey Street is not on the listing
After you register, the paid report names the owner. It also includes the city-file amounts the listing leaves out.
- Owner details
- Last sale price
- Mortgage amount
- Recorded document amounts
06 / FAQ
Questions
How many open violations does 638 Halsey Street have?
As of Oct 6, 2026, the building at 638 Halsey Street has 29 open HPD violations (3 Class C, 23 Class B, 2 Class A, 1 Class I). These are building records, so they apply to this listing.
What is the zoning of 638 Halsey Street?
The lot is zoned R6B. The building is built at a floor area ratio of 1.32 against 2.00 allowed for residential use, leaving about 1,275 ft² of unused residential floor area.
Is this property in a flood zone?
No. The lot is not inside a FEMA 100-year flood zone on the 2007 or 2015 maps.
Does a missing city file mean the building is clear?
No. A missing file means the city has no record matched to this address, not that the building has no problems. Condominiums and small buildings often sit outside the housing registry. Ask the seller or the managing agent directly.
What amounts are recorded for 638 Halsey Street?
Owner details are in the paid report, available after you register. Last sale price, Mortgage amount, Recorded document amounts are in the city file and included there too.
Where does this data come from?
Records are combined from NYC DCP PLUTO (tax lot, zoning, FAR); NYC HPD (housing violations and registrations); NYC DOB and ECB (building violations and penalties); NYC ACRIS (recorded deeds, mortgages and satisfactions); Active for-sale listings. PLUTO version 26v2.
Sources
NYC DCP PLUTO (tax lot, zoning, FAR) · NYC HPD (housing violations and registrations) · NYC DOB and ECB (building violations and penalties) · NYC ACRIS (recorded deeds, mortgages and satisfactions) · Active for-sale listings
PLUTO 26v2, refreshed Oct 6, 2026. Written for people buying or selling this property. Not legal, tax, or appraisal advice. Confirm the details with the city before you offer or list.