Skip to content

Brooklyn • Condo

841 Union St

Brooklyn, NY 11215Individually ownedBBL 3009541090BIN 3019896
Save buildingView report

16 sources

Year Built1928
Floors7
Units145
Building Area17,698 sqft
ZoningR6A
ClassR0
Market Value$17K

841 UNION ST is a property located at 841 UNION ST, Brooklyn, NY 11215. It is classified as a condo - residential unit. The building was constructed in 1928. It has 7 floors and 145 units. The building area is 17,698 square feet on a 5,975 sqft lot. The property is zoned R6A. The assessed market value is $17K. It last sold for $255K on Aug 18, 2026. Public records list the property as individually owned. There are 18 building permits on record (15 active). There are 46 violations on record (1 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

483records on file

Completed in 1928, 841 Union St rises 7 stories over Kings. Public records put it at 145 units and 17,698 square feet of floor area, on land zoned R6A. It is carried on the public rolls at a market value of $17.4K, and assessed for tax at $7.8K. In the 41 years its record reaches back, the lot has drawn 483 separate government filings.

The documentary life of the address leans hard toward sale: 315 of its 483 records, fully 65%, fall under that one heading. Violation (46) and mortgage (27) trail well behind. 1 violation stands open against it today.

The pace is anything but even. Activity is spread across the decades, with 1987 the busiest year on file.

On the environmental ledger, the building is benchmarked under Local Law 84, with a site energy-use intensity of 10.2 kBtu per square foot. Its operations answer for roughly 31 metric tons of CO2-equivalent a year.

Read together — 65% sale, 41 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

65% of every record here performs the same act: sale.

Open the live report — daily-updated data, AI chat & alerts
Full Analysis report · $15 one-time

Get the full report for 841 Union St

Executive summary, compliance history, title chain & existing debt, recorded documents & agreements, owner contacts, tax detail, Use & Development, build envelope, market comps, investment metrics, deal math & stress tests, deal signals, pre-foreclosure signals, neighborhood. Downloadable PDF. One payment, no subscription.

Get the $15 report
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
latest record

Property Details

Address841 UNION ST, Brooklyn, NY 11215
Building TypeCondo - Residential Unit
R0
Year Built1928
Floors7
Total Units145
Building Area17,698 sqft
Lot Size5,975 sqft
ZoningR6A
ConditionAverage
3009541090
3019896
OwnershipIndividually owned

Assessment & Sales

$17K
$8K
$1K
$255K
Last Sale DateAug 18, 2026

Building Permits

18 on record · 15 active
General ConstructionDOB NOW
APPROVED
Filed Sep 22, 2026Est. cost $1.7MJob #B01452362-I1
View this permit's full record & inspection history →
ElectricalDOB NOW
PERMIT ISSUED
Filed Aug 28, 2026Job #B01452609-I1-EL

remove and reinstall fixtures from 1 through 6 fl due to construction work

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Dec 26, 2025Est. cost $200KJob #B01207395-I1
View this permit's full record & inspection history →
Public SafetyDOB NOW
AHV PERMIT ISSUED
Filed Dec 20, 2025Job #B4704923
View this permit's full record & inspection history →
EmergencyDOB NOW
AHV PERMIT ISSUED
Filed Nov 15, 2025Job #B1447167
View this permit's full record & inspection history →

+ 13 more permits — view full report

Violations

46 on record · 1 open
SafetyGas Piping Ll152
ACTIVE
Issued Oct 31, 2025#NOD-FTF-PL-PER-202212-0133057

Cycle 1, Sub-cycle C (premises is in Community District 6)

View this violation's full details & status history →

+ 45 more violations on record — view full report

Get the Complete Report for 841 UNION ST

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

When was 841 UNION ST, Brooklyn built?

The building at 841 UNION ST, Brooklyn, NY 11215 was constructed in 1928. It is classified as a condo - residential unit with 7 floors and 145 units. The building area is 17,698 sqft.

Are there building permits at 841 UNION ST, Brooklyn?

Yes. 841 UNION ST, Brooklyn, NY 11215 has 18 building permits on record, with 15 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 (APPROVED) filed Sep 22, 2026.

Does 841 UNION ST, Brooklyn have violations?

Yes. 841 UNION ST, Brooklyn, NY 11215 has 46 violations on record, with 1 currently open. Breakdown: 2 DOB Safety, 28 DOB, 16 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 841 UNION ST, Brooklyn have docketed judgments?

No docketed OATH judgments were found in local records for 841 UNION ST, Brooklyn, NY 11215. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 841 UNION ST?

841 UNION ST, Brooklyn, NY 11215 has an assessed market value of $17K and a total assessed value of $8K (land: $1K). Assessment data is from the NYC Department of Finance (DOF).

When was 841 UNION ST last sold?

841 UNION ST, Brooklyn, NY 11215 last sold for $255K on Aug 18, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 841 UNION ST?

841 UNION ST, Brooklyn, NY 11215 is zoned R6A. 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.

Who owns 841 UNION ST?

841 UNION ST, Brooklyn, NY 11215 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 841 UNION ST?

Search 841 UNION ST 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 ($15, one-time) 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
Brooklyn Property Search →Brooklyn Permit Search →Brooklyn Violation Lookup →Brooklyn Tax Search →Brooklyn Title Search →Brooklyn 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 →
841 UNION ST, Brooklyn, NY 11215 — Property Records, Permits, Violations, Tax & Zoning | RegWatch