What the listing does not show
423 15th Street #3BB
in 423 15th StreetBrooklyn, NY 11215Co-opModerate risk
Listed at $699,000. The listing does not mention what city records show: 5 open building violations. Read them before you offer, and be ready to explain them if you are selling.
- Asking
- $699,000
- Beds
- 2 beds
- Baths
- 1 bath
- Building
- Co-op
- Built
- 1909
- Open housing violations
- 0
- Immediately hazardous
- 0
- Open building violations
- 5
- Unresolved penalties
- 0
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.
- 01Checked: no open housing violations on file.
- 025 open Buildings Department violations, which can slow a closing.
- 03Checked: no unresolved penalties on file.
- 04In the Park Slope Historic District Extension, so exterior changes are restricted.
- 053 co-op share transfers in the last 12 months. Co-op sales are not recorded as deeds, so they show up only here.
- 061 tax lien document on record.
02 / Building
The building
City records for 423 15th Street, the building this listing is in. Department of Finance class C6: Walk-up apartments.
- Type
- Co-op
- Year built
- 1909
- Floors
- 4
- Units
- 1616 residential
- Building area
- 12,536 ft²
- Residential / commercial
- 12,536 / 0 ft²
- Lot
- 4,458 ft²44.58 × 100 ft
- Assessed value
- $990,000Tax assessment, not market value
- Assessed land
- $62,550
- Tax exemption
- $45,181
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)
0
open violations
No open housing violations on file.
Registration recently lapsed, ended Sep 1, 2026. Owner state NY.
Buildings (DOB)
5
open violations
4 safety-related. Most recent open filing Feb 27, 2001.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
0
unresolved
No unresolved penalties on file.
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.
49 recorded documents · 0 sales of $10,000 or more · Last sale none · Last mortgage 2004
Unlock the recorded amounts for 423 15th Street #3BB
After you register, the paid report includes who owns the building, plus the amounts below from the city file.
- Owner details
- Mortgage amount
Paid report
The rest of 423 15th Street #3BB 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
- Mortgage amount
06 / FAQ
Questions
How many open violations does 423 15th Street #3BB have?
As of Oct 14, 2026, the building at 423 15th Street has 0 open HPD violations (0 Class C, 0 Class B, 0 Class A, 0 Class I), 5 open DOB violations, 0 unresolved ECB penalties. These are building records, so they apply to this listing.
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.
What amounts are recorded for 423 15th Street?
Owner details are in the paid report, available after you register. Mortgage amount is 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 14, 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.