Skip to content

Bronx

851 Underhill Ave

Bronx, NY 10473Individually ownedBBL 2036431231BIN 2096830
Save buildingView report

Updated Aug 1, 2026 · 16 sources

Floors1
ClassR3
Market Value$432K

851 UNDERHILL AVE is a property located at 851 UNDERHILL AVE, Bronx, NY 10473. The building has 1 floor. The assessed market value is $432K. It last sold for $260K on Feb 24, 2021. Public records list the property as individually owned. There are 3 building permits on record (3 active). There are 14 violations on record (6 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

57records on file

The lot at 851 Underhill Ave rises 1 story over Bronx. It is carried on the public rolls at a market value of $432K, and assessed for tax at $25.9K. In the 36 years its record reaches back, the lot has drawn 57 separate government filings.

The documentary life of the address leans hard toward violation: 14 of its 57 records, fully 25%, fall under that one heading. Mortgage (13) and release (10) trail well behind. 6 violations stand open against it today.

The pace is anything but even. Activity is spread across the decades, with 2026 the busiest year on file.

Read together — 25% violation, 36 years of accumulation, a parcel of Bronx — these scattered records compose a portrait of the address that no single page sets out to draw.

$432K of Bronx, written across 57 government filings.

Open the live report — daily-updated data, AI chat & alerts
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address851 UNDERHILL AVE, Bronx, NY 10473
R3
Year BuiltN/A
Floors1
Total UnitsN/A
Building AreaN/A
Lot SizeN/A
2036431231
2096830
OwnershipIndividually owned

Assessment & Sales

$432K
$26K
$2K
$260K
Last Sale DateFeb 24, 2021

Building Permits

3 on record · 3 active
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jul 21, 2026Est. cost $7KJob #X01386558-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed Jul 21, 2026Est. cost $7KJob #X01386558-P1
View this permit's full record & inspection history →
PlumbingDOB NOW
PERMIT ISSUED
Filed Jun 12, 2026Est. cost $7KJob #X01386558-I1

Initial Permit

View this permit's full record & inspection history →

Violations

14 on record · 6 open
HPDClass C
NOV SENT OUT
Issued Apr 6, 2026#18767458

§ 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST

View this violation's full details & status history →
HPDClass C
NOV SENT OUT
Issued Apr 6, 2026#18767459

§ 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Apr 6, 2026#18767461

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR WINDOW SILL AT EAST WALL IN THE 1st ROOM FROM EAST LOCATED AT APT A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Apr 6, 2026#18767464

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE STUCCO AT WEST EXTERIOR WALL , 1st STORY

View this violation's full details & status history →
HPDClass C
NOV SENT OUT
Issued Apr 6, 2026#18767460

§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM LOCKED AT BOILER ROOM

View this violation's full details & status history →

+ 9 more violations on record — view full report

Get the Complete Report for 851 UNDERHILL AVE

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

Free to view core records, no credit card required — the paid report adds title history & analysis.

View Report

Frequently Asked Questions

Are there building permits at 851 UNDERHILL AVE, Bronx?

Yes. 851 UNDERHILL AVE, Bronx, NY 10473 has 3 building permits on record, with 3 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a General Construction (PERMIT ENTIRE) filed Jul 21, 2026.

Does 851 UNDERHILL AVE, Bronx have violations?

Yes. 851 UNDERHILL AVE, Bronx, NY 10473 has 14 violations on record, with 6 currently open. Breakdown: 14 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 851 UNDERHILL AVE, Bronx have docketed judgments?

No docketed OATH judgments were found in local records for 851 UNDERHILL AVE, Bronx, NY 10473. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 851 UNDERHILL AVE?

851 UNDERHILL AVE, Bronx, NY 10473 has an assessed market value of $432K and a total assessed value of $26K (land: $2K). Assessment data is from the NYC Department of Finance (DOF).

When was 851 UNDERHILL AVE last sold?

851 UNDERHILL AVE, Bronx, NY 10473 last sold for $260K on Feb 24, 2021. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

Who owns 851 UNDERHILL AVE?

851 UNDERHILL AVE, Bronx, NY 10473 is individually owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.

How do I get a full property report for 851 UNDERHILL AVE?

Search 851 UNDERHILL AVE 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.

Search Another Property

Look up violations, permits, and records for any tri-state address.

Related searches
Bronx Property Search →Bronx Permit Search →Bronx Violation Lookup →Bronx Tax Search →Bronx Title Search →Bronx Zoning Lookup →NYC Permit Search →NYC Violation Lookup →NYC Property Tax →NYC Zoning Lookup →NYC Compliance Deadlines →NYC Violation Types →Free Property Search →Data Sources →Class R Buildings Guide →
851 UNDERHILL AVE, Bronx, NY 10473 — Property Records, Permits, Violations, Tax & Zoning | RegWatch