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Brooklyn • Condo

434 Prospect Pl

Brooklyn, NY 11238BBL 3011627503BIN 3028926
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Updated Aug 2, 2026 · 16 sources

Year Built1931
Floors3
Units3
Building Area4,296 sqft
ZoningR6B
ClassR1
Market Value$735K

434 PROSPECT PL is a property located at 434 PROSPECT PL, Brooklyn, NY 11238. It is classified as a condo - residential unit in elevator building. The building was constructed in 1931. It has 3 floors and 3 units. The building area is 4,296 square feet on a 2,620 sqft lot. The property is zoned R6B. The assessed market value is $735K. It last sold for $640K on Feb 26, 2004. There are 6 building permits on record (2 active). There are 29 violations on record (2 currently open). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

93records on file

Completed in 1931, 434 Prospect Pl rises 3 stories over Kings. Public records put it at 3 units and 4,296 square feet of floor area, on land zoned R6B. It is carried on the public rolls at a market value of $735K, and assessed for tax at $331K. In the 44 years its record reaches back, the lot has drawn 93 separate government filings.

The documentary life of the address leans hard toward violation: 29 of its 93 records, fully 31%, fall under that one heading. Complaint (13) and release (11) trail well behind. 2 violations stand open against it today.

The pace is anything but even. Activity is spread across the decades, with 2005 the busiest year on file.

Read together — 31% violation, 44 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$735K of Kings, written across 93 government filings.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address434 PROSPECT PL, Brooklyn, NY 11238
Building TypeCondo - Residential Unit in Elevator Building
R1
Year Built1931
Floors3
Total Units3
Building Area4,296 sqft
Lot Size2,620 sqft
ZoningR6B
ConditionAverage
3011627503
3028926

Assessment & Sales

$735K
$331K
$29K
$640K
Last Sale DateFeb 26, 2004

Building Permits

6 on record · 2 active
New BuildingDOB Legacy
SIGNED OFF
Filed Jun 25, 2020Job #321192366-03
View this permit's full record & inspection history →
Alteration — Type 1DOB Legacy
SIGNED OFF
Filed Oct 13, 2016Est. cost $665KJob #320937563-01

GEN. CONSTR.

View this permit's full record & inspection history →
General ConstructionDOB Legacy
COMPLETED
Filed Sep 14, 2016Job #321441427-01
View this permit's full record & inspection history →
AlterationDOB Legacy
ISSUED
Filed Nov 24, 2015Job #320937563-01-02
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed May 11, 2015Job #320937563-01-01

PL

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+ 1 more permit — view full report

Violations

29 on record · 2 open
HPDClass A
VIOLATION DISMISSED
Issued May 5, 2026#18888240

(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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.

View this violation's full details & status history →
HPDClass I
VIOLATION DISMISSED
Issued Nov 20, 2025#18423835

§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, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID REGISTRATION STATEMENT IS FILED.

View this violation's full details & status history →
HPDClass A
VIOLATION DISMISSED
Issued Mar 24, 2023#15856771

(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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.

View this violation's full details & status history →
HPDClass I
VIOLATION DISMISSED
Issued Nov 14, 2022#15536126

§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, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID REGISTRATION STATEMENT IS FILED.

View this violation's full details & status history →
HPDClass A
VIOLATION DISMISSED
Issued Mar 1, 2022#14956136

(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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.

View this violation's full details & status history →

+ 24 more violations on record — view full report

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Title history, detailed tax records, environmental data, zoning analysis, and more from 250+ government sources.

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Frequently Asked Questions

When was 434 PROSPECT PL, Brooklyn built?

The building at 434 PROSPECT PL, Brooklyn, NY 11238 was constructed in 1931. It is classified as a condo - residential unit in elevator building with 3 floors and 3 units. The building area is 4,296 sqft.

Are there building permits at 434 PROSPECT PL, Brooklyn?

Yes. 434 PROSPECT PL, Brooklyn, NY 11238 has 6 building permits on record, with 2 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a New Building (SIGNED OFF) filed Jun 25, 2020.

Does 434 PROSPECT PL, Brooklyn have violations?

Yes. 434 PROSPECT PL, Brooklyn, NY 11238 has 29 violations on record, with 2 currently open. Breakdown: 13 DOB, 1 ECB, 15 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 434 PROSPECT PL, Brooklyn have docketed judgments?

No docketed OATH judgments were found in local records for 434 PROSPECT PL, Brooklyn, NY 11238. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 434 PROSPECT PL?

434 PROSPECT PL, Brooklyn, NY 11238 has an assessed market value of $735K and a total assessed value of $331K (land: $29K). Assessment data is from the NYC Department of Finance (DOF).

When was 434 PROSPECT PL last sold?

434 PROSPECT PL, Brooklyn, NY 11238 last sold for $640K on Feb 26, 2004. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 434 PROSPECT PL?

434 PROSPECT PL, Brooklyn, NY 11238 is zoned R6B. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.

How do I get a full property report for 434 PROSPECT PL?

Search 434 PROSPECT PL on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.

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434 PROSPECT PL, Brooklyn, NY 11238 — Property Records, Permits, Violations, Tax & Zoning | RegWatch