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CurbScoop›Buildings›Prospect Heights›521 DEAN STREET

521 DEAN STREET

Brooklyn· Prospect Heights· built 1930class C6BBL 3011280076
Open listing source

Your first look at this property

A free brief from the records below. Start here, then check the evidence.

Building overview

521 DEAN STREET is a 10-unit building in Prospect Heights, Brooklyn, built in 1930.

1 unit is on the market here right now.

City records show 4 DOB permits and 10 violation records on file.

Units (res)
10
Floors
-
Lot ft²
3,135 ft²
Bldg ft²
7,428 ft²
Assessed
$2.07M
DOF FY2027 final roll
Deeds on this lot · 5 years
Unavailable
Excludes nearby comparable buildings

Official taxes & valuations

$4,595,000.00 · DOF market valueWhole tax lot · BBL 3011280076

FY2026–27 final assessment roll · Extract 2026-05-15

+20.0% change in DOF market value from the prior year.

Land value
$54,000.00
Building/improvement value
$4,541,000.00
Actual assessed value
$2,067,750.00
Assessed land
$24,300.00
Transitional assessed value
$402,666.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$402,666.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$402,666.00
FY2025–26 DOF market value
$3,829,000.00
Prior-year actual assessed value
$1,723,050.00
Prior-year taxable assessment
$402,666.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

These values cover the whole tax lot and do not value individual co-op shares.

Official DOF final assessment roll (ZIP) ↗
$36,013.32/yr · $3,001.11/mo equivalentWhole tax lot · BBL 3011280076

FY2026–27 · DOF statement 2026-08-15 · 521 DEAN ST.

The printed annual tax already deducts $14,074.32 in abatements and/or STAR.

Billable assessment on this statement
$402,666.00
Tax rate on this statement
12.4390%
Annual tax before abatements/STAR
$50,087.64
Monthly equivalent before abatements/STAR
$4,173.97

The before-abatement amount adds the printed deduction back to the annual tax, holding the assessment and rate unchanged. It does not predict benefit expiration, future taxes or a buyer’s eligibility.

DOF tax-purpose market value on this statement: $4,595,000.00.

Named benefits on the statement
Co-op/Condo Abatement 10 units $14,074.32

This covers the whole tax lot. Co-op building taxes cannot be added to an apartment’s maintenance or divided among its units.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $402,666.00
times the current tax rate: x 12.4390%
minus abatements and/or STAR: – $14,074.32
Annual property tax: $36,013.32

HOA, common charges and maintenance require documented building or unit evidence. Sales and DOB records do not establish these amounts. A zero property-tax bill does not establish zero PILOT or other ownership charges. Bills may change with tax rates or benefits; monthly figures are annual equivalents.

Look up this tax lot at DOF ↗

Public building financial filings

NY Attorney General offering plans and amendments can document budgets, financial statements, reserves and sponsor obligations. These records cover the development, including properties without active listings.

521 DEAN STREET OWNERS CORPC890245 · 521 DEAN STREET, BROOKLYN

Latest collected amendment 17 · submitted 2004-10-12 · ACCEPTED

Assessment and resale evidence coverage

Assessments & charge increases: No supported amount or rule collected. Unknown, not zero.

Resale fees & restrictions: No supported amount or rule collected. Unknown, not zero.

Current board-approved fees, assessments and resale conditions may require building documents beyond public filings.

Cash is not necessarily a reserve balance. Debt amounts retain their reporting dates and collateral; a recorded mortgage amount is not a current outstanding balance. Disclosed conditions and historical projections do not establish today’s assessment or resale rules.

Amendment 17 · 2004-10-12

Financial statements

Filed contents

73, 99-FIN. DISCL;BD

Amendment 14 · 2003-09-12

Financial statements

Filed contents

73,99,FINANCIAL DISCLOSURE;TAX RATE INCREASE

Amendment 12 · 2002-09-30

Financial statements

Filed contents

73,99,FINANCIAL DISCLOSURE;BD.

Amendment 11 · 2001-10-09

Budget without certification · Financial statements

Filed contents

72,73,99 FINANCIAL DISCLOSURE,BOARD, 12 MONTHS EXTENSION

Amendment 10 · 2000-10-16

Budget without certification · Financial statements

Filed contents

72,73,99,FINANCIAL DISCLOSURE;BD.

0 documents reported in the public index. Some documents may require a records request. Collected 10/10/2026.

Open official plan & financial documents ↗

Match: exact building address and borough. Historical budgets, sponsor-wide charges and offering prices do not establish this apartment’s current maintenance, common charges, assessment or resale value.

Search the official NYAG offering-plan database ↗

Tax-benefit schedules, statement balances, penalties and declared capital work cover the identified tax lot. Condo billing-lot evidence is shown separately from apartment evidence.

DOF published abatements & termsTax lot 3011280076

Tax benefits & expiration

Reported itemValuePeriod & scope
COOP · Published benefit begin date
Evidence

{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "14074.32", "appseq": "2", "appstat": "A", "caseno": "2046", "extractdt": "2026-08-15T00:00:00.000", "parid": "3011280076", "period": "2Q", "rate_pct": "0.002810", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "2017-07-01T00:00:00.000"}

Tax benefit; do not add as a cost

Open official source ↗
2017-07-01As of 2026-08-15
FY2027 2Q
Published schedule · exact tax lot
COOP · Source applied abatement
Evidence

{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "14074.32", "appseq": "2", "appstat": "A", "caseno": "2046", "extractdt": "2026-08-15T00:00:00.000", "parid": "3011280076", "period": "2Q", "rate_pct": "0.002810", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "2017-07-01T00:00:00.000"}

Tax benefit; do not add as a cost

Open official source ↗
$14,074.32As of 2026-08-15
FY2027 2Q
Source reported · exact tax lot
COOP · source eligibility / application status
Evidence

{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "14074.32", "appseq": "2", "appstat": "A", "caseno": "2046", "extractdt": "2026-08-15T00:00:00.000", "parid": "3011280076", "period": "2Q", "rate_pct": "0.002810", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "2017-07-01T00:00:00.000"}

Tax benefit; do not add as a cost

Open official source ↗
appstat=AAs of 2026-08-15
FY2027 2Q
Source reported · exact tax lot

FY2027 2Q source abatement terms, dated 2026-08-15. Dates and amounts do not guarantee eligibility after purchase. Per-cycle amounts are not annualized; overlapping calculations are not summed.

Published benefit amounts and dates do not guarantee eligibility after a purchase. An end date alone does not establish the future tax bill; assessment, tax rate and other benefits may change.

Source updated 2026-10-05 · collected 2026-10-09.

Open official source ↗
DOF statement balancesTax lot 3011280076

Public balances & charges

Reported itemValuePeriod & scope
Outstanding charges
Evidence

Outstanding charges $0.00

Separate dated balance; do not add to annual costs

Open official source ↗
$0.00As of 2026-08-15
Source reported · exact tax lot
New charges this billing period
Evidence

New charges $9,003.33

Separate dated balance; do not add to annual costs

Open official source ↗
$9,003.33As of 2026-08-15
Source reported · exact tax lot
Statement amount due
Evidence

Amount Due 10/01/26: $9,003.33

Separate dated balance; do not add to annual costs

Due date: 2026-10-01

Open official source ↗
$9,003.33As of 2026-08-15
Source reported · exact tax lot
Department of Finance Total
Evidence

Department of Finance Total $9,003.33

May be in statement balance; do not add twice

Open official source ↗
$9,003.33As of 2026-08-15
Source reported · exact tax lot

Source updated 2026-08-15 · collected 2026-10-12.

Open official source ↗
DOB declared construction workTax lot 3011280076

Penalties, energy & capital work

Reported itemValuePeriod & scope
Declared construction estimate · B01308555-I1-SH#1
Evidence

INSTALLATION OF 300PSF SIDEWALK SHED AS PER PLANS. SIDEWALK SHED SHALL COMPLY WITH CHAPTER 33 OF NYC CODE 2022. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

Estimate; not an apartment assessment

Open official source ↗
$5,000.00As of 2025-10-27
Declared estimate · exact tax lot

Up to 30 most recent distinct filings from the past five years; this is not a complete capital-work inventory.

Declared job estimates are not actual spending or approved assessments. Repeated permit rows for the same filing are counted once; separate job filings may still describe related work.

Source publication date not provided.

Open official source ↗
Model annual LL97 emissions exposure

Enter verified LL97 emissions and the applicable annual limit. LL84 location-based emissions above are a different reported metric and are not automatically used here.

Enter both assumptions to calculate exposure.

Before exemptions, adjustments, offsets or penalty mitigation. This scenario does not establish an issued fine or an apartment charge.

Official DOB penalty guidance ↗

Active sale listings (1)

AddressNeighborhoodPrice$/ft²SqftBeds/Bathsvs compDOMRiskScore
521 DEAN STREET #9
Brooklyn · built 1930
Prospect Heights$1.20M$9631,245 ft²2 bd · 2 ba-141
3 HPD-C3 DOBbedbug
12.6Source

Building activity

Open a record to read the full agency text.

Housing violations (HPD) 5

Housing violationClass CAug 5, 2012 · Apt 8First no access to re- inspect violation

SECTION 27-2043.1 HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 2; WG TO REPLACE = 0; WG TO REPAIR = 0; IN THE ENTIRE APARTMENT LOCATED AT APT 8, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST

HPD record 9528770
Housing violationClass AAug 5, 2012 · Apt 8Violation dismissed

SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE BASEBOARD AT EAST WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT 8, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST

HPD record 9595504
Housing violationClass AAug 5, 2012 · Apt 8Violation dismissed

SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE EAST WALL IN THE PRIVATE HALLWAY LOCATED AT APT 8, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST

HPD record 9595506
Show 2 more records
Lead paint recordClass CAug 5, 2012 · Apt 8Violation closed

§ 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) BASEBOARD AT EAST WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT 8, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST

HPD record 9536019
Lead paint recordClass CAug 5, 2012 · Apt 8Violation closed

§ 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) EAST WALL IN THE PRIVATE HALLWAY LOCATED AT APT 8, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST

HPD record 9536020

Work permits (DOB) 4

Sidewalk ShedOct 27, 2025Permit issued

INSTALLATION OF 300PSF SIDEWALK SHED AS PER PLANS. SIDEWALK SHED SHALL COMPLY WITH CHAPTER 33 OF NYC CODE 2022. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

A & D GENERAL CONTR INC

Issued Oct 27, 2025

DOB filing B01308555-I1-SH#1
OTFiling date not suppliedIssued

OT

BNOLIMIT CONSULTING LLC

DOB filing 2662915
OTFiling date not suppliedIssued

OT

BNH CONSTRUCTION NY INC

DOB filing 3572762
Show 1 more records
PLFiling date not suppliedIssued

A2

VIGILANTE CONTRACTING CO

DOB filing 3591429

Building violations (DOB) 5

C-CONSTRUCTION OTHER OPTIONALAug 12, 2025No disposition date supplied

FTC W/COMMISSIONER'S ORDER 329660,022825PI30802HZ DATED 2/28/25 REQUIRING OWNER TO START BLDG REPAIRS UNDER PERMIT. AS OF 8/12/25 THERE ARE NO JOBS FILED IN BIS OR DOBNOW TO REPAIR BLDG. IMMED COMPLY W/COMMISSIONER'S ORDER 329660, 022825PI30802HZ TO REPAIR THE BLDG UNDER PERMIT

DOB record 2793875
C-CONSTRUCTION OTHER OPTIONALFeb 28, 2025No disposition date supplied

FAILURE TO MAINTAIN BLDG IN CODE COMPLIANT MANNER.BRICK &MORTAR BLDG W/BROWNSTONE IN DISREPAIR PORTIONS OF THE STONE IS LOOSE &CRCKD@WNDW HEADR,@BSMNT&1STFL LEVEL-LEFT SIDE,2.MINOR CRCKS@HEADR.OWNR TO IMMED RTAIN NYSPE TO EVAL THE ENT BLDG,TO DTRMINE THE STRCTRL STBILITY& PREPARE&FILE RPAIR DWGS.BLDG TO BE RPAIRD UNDR PRMT

DOB record 2789733
LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDMar 19, 2003Disposition recorded May 5, 2004

Agency description not supplied.

DOB record 904070
Show 2 more records
LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDSep 16, 1997Disposition recorded Dec 5, 1997

Agency description not supplied.

DOB record 528610
LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDJul 25, 1994No disposition date supplied

Agency description not supplied.

DOB record 338009
Transaction history · 0 deeds

Recorded consideration. A $0 deed is not a sale price.

No recorded transactions for this BBL yet.

More buildings in Prospect Heights

Sources, coverage & freshness

Sources & freshness

Research contract nyc_property_research.v1 · snapshot Oct 24, 2026

Stable property ID: nyc:bbl:3011280076

This identifier represents an NYC tax lot. Condo and co-op apartment identity must be resolved separately.

Tax lot and building facts

NYC Department of City Planning (PLUTO)

completed
1 tax-lot record in the current corpus · latest record Oct 18, 2026

Pipeline completed Oct 18, 2026

The current PLUTO pipeline is configured for Manhattan and Brooklyn.

PLUTO describes the tax lot and buildings, not legal ownership of an individual apartment.

Marketed sale listings

StreetEasy, observed by CurbScoop

completed
1 active sale listing in the current corpus · latest record Apr 10, 2026

Pipeline completed Aug 31, 2026

Retired source: collection stopped on 2026-08-31, so these are the last Manhattan and Brooklyn listings observed, not the current market.

Listing observations describe marketed state as of 2026-08-31 at the latest and are not proof of a closing or exhaustive market coverage.

Recorded transfers

NYC Department of Finance, Office of the City Register (ACRIS)

completed
0 recorded deeds in the current corpus

Pipeline completed Oct 23, 2026

Deed document types associated with this BBL in the current CurbScoop corpus.

Recording can lag a transaction, and a deed with no stated consideration is not evidence of a market sale.

DOB permits

NYC Department of Buildings via NYC Open Data

completed
4 permits in the current corpus · latest record Oct 27, 2025

Pipeline completed Oct 24, 2026

The current DOB permit pipeline is configured for Manhattan and Brooklyn.

A filing or permit does not prove that work was completed or that all work at the property was filed.

HPD violations

NYC Department of Housing Preservation and Development via NYC Open Data

completed
5 violations in the current corpus · latest record Jul 21, 2016

Pipeline completed Oct 24, 2026

The current HPD violation pipeline is configured for Manhattan and Brooklyn.

Status and correction timing come from the published agency record and may change after CurbScoop observes it.

DOB violations

NYC Department of Buildings via NYC Open Data

completed
5 violations in the current corpus · latest record Aug 12, 2025

Pipeline completed Oct 24, 2026

The current DOB violation pipeline is configured for Manhattan and Brooklyn.

Absence from the current corpus is not proof that a building has no regulatory issue.

Counts and dates describe the current CurbScoop corpus. They are not a guarantee of exhaustive agency or listing coverage.

How to read these records

Deed amounts are recorded consideration, not asking prices or a unit valuation. A blank record is not proof that an issue does not exist.