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CurbScoop›Buildings›Flatbush›255 EAST 21 STREET

255 EAST 21 STREET

Brooklyn· Flatbush· built 1917class A9BBL 3051020098

Your first look at this property

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

Building overview

255 EAST 21 STREET is a 1-unit building in Flatbush, Brooklyn, built in 1917.

CurbScoop has 1 recorded sale on this tax lot, most recently $2.83M on Jul 23, 2026.

1 unit is on the market here right now.

City records show 4 DOB permits and 1 violation record on file.

Units (res)
1
Floors
3.0
Lot ft²
1,790 ft²
Bldg ft²
2,598 ft²
Assessed
$122K
DOF FY2027 final roll
Deeds on this lot · 5 years
1
median $2.83M · this tax lot only

Official taxes & valuations

$2,028,000.00 · DOF market valueWhole tax lot · BBL 3051020098

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

+18.9% change in DOF market value from the prior year.

Land value
$380,000.00
Building/improvement value
$1,648,000.00
Actual assessed value
$121,680.00
Assessed land
$22,800.00
Transitional assessed value
$49,030.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$49,030.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$49,030.00
FY2025–26 DOF market value
$1,706,000.00
Prior-year actual assessed value
$102,360.00
Prior-year taxable assessment
$46,255.00

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) ↗
$9,729.04/yr · $810.75/mo equivalentWhole tax lot · BBL 3051020098

FY2026–27 · DOF statement 2026-08-15 · 255 E. 21ST ST.

Billable assessment on this statement
$49,030.00
Tax rate on this statement
19.8430%

DOF tax-purpose market value on this statement: $2,028,000.00.

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: $49,030.00
times the current tax rate: x 19.8430%
Annual property tax: $9,729.04

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.

No exact offering-plan match has been collected here yet. Eligible condo and co-op properties are queued when viewed. Missing filings do not establish zero fees, assessments or debt.

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.

DOB ECB penalties & reported balancesTax lot 3051020098

No supported financial amounts were returned in this source snapshot. This does not establish zero costs, no benefit, no debt or no penalties.

Balances retain the source’s reported status and observation date. An imposed penalty is not an additional amount to add to its balance due.

Source updated 2026-10-11 · collected 2026-10-12.

Open official source ↗
DOF benefit schedulesTax lot 3051020098

No supported financial amounts were returned in this source snapshot. This does not establish zero costs, no benefit, no debt or no penalties.

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 publication date not provided · collected 2026-10-12.

Open official source ↗
DOF statement balancesTax lot 3051020098

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 $2,432.26

Separate dated balance; do not add to annual costs

Open official source ↗
$2,432.26As of 2026-08-15
Source reported · exact tax lot
Statement amount due
Evidence

Amount Due 10/01/26: $2,432.26

Separate dated balance; do not add to annual costs

Due date: 2026-10-01

Open official source ↗
$2,432.26As of 2026-08-15
Source reported · exact tax lot
Department of Finance Total
Evidence

Department of Finance Total $2,432.26

May be in statement balance; do not add twice

Open official source ↗
$2,432.26As of 2026-08-15
Source reported · exact tax lot

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

Open official source ↗
DOB energy disclosureTax lot 3051020098

No supported financial amounts were returned in this source snapshot. This does not establish zero costs, no benefit, no debt or no penalties.

Reported energy figures may cover several buildings or lots. They are not verified LL97 emissions, a penalty calculation, or this apartment’s utility bill.

Source updated 2025-11-25 · collected 2026-10-12.

Open official source ↗
DOB declared construction workTax lot 3051020098

Penalties, energy & capital work

Reported itemValuePeriod & scope
Declared construction estimate · B01272168-S2-MS#1
Evidence

Install Air Handling units for heating and cooling systems w/ Compressors in the Rear Yard. No change in use, occupancy, egress or floor area.

Estimate; not an apartment assessment

Open official source ↗
$57,500.00As of 2026-02-12
Declared estimate · exact tax lot
Declared construction estimate · B01272168-S1-PL#1
Evidence

Modification to exist. plumbing system per plans filed herewith. No change in use, occupancy, egress or floor area.

Estimate; not an apartment assessment

Open official source ↗
$44,000.00As of 2025-10-24
Declared estimate · exact tax lot
Declared construction estimate · B01272168-I1-GC-CX#1
Evidence

REDUCE scope of work. Remove 1 new exterior door from scope. Remove 2 new window in new M.O.; add one window in existing M.O. No change to scope of Structural work.

Estimate; not an apartment assessment

Open official source ↗
$300,000.00As of 2025-10-22
Declared estimate · exact tax lot
Declared construction estimate · B01260460-I1-GC#1
Evidence

Remove Cellar partitions and repair damaged Cellar finishes as shown. No change to use, occupancy, egress or floor area.

Estimate; not an apartment assessment

Open official source ↗
$5,000.00As of 2025-09-09
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
2102 ALBEMARLE TERRACE #TWNHSE
Brooklyn · built 1917
Flatbush$2.88M$8713,300 ft²5 bd · 2 ba+1.8%40
1 DOB
2.3Source

Building activity

Open a record to read the full agency text.

Housing violations (HPD) 0

No records returned.

Work permits (DOB) 4

Mechanical SystemsFeb 12, 2026Signed-off

Install Air Handling units for heating and cooling systems w/ Compressors in the Rear Yard. No change in use, occupancy, egress or floor area.

MY BEAUTIFUL HOME DESIGN

Issued May 14, 2026

DOB filing B01272168-S2-MS#1
PlumbingOct 24, 2025Signed-off

Modification to exist. plumbing system per plans filed herewith. No change in use, occupancy, egress or floor area.

DPH PLUMBING & HTG CORP

Issued Feb 13, 2026

DOB filing B01272168-S1-PL#1
StructuralOct 22, 2025Signed-off

REDUCE scope of work. Remove 1 new exterior door from scope. Remove 2 new window in new M.O.; add one window in existing M.O. No change to scope of Structural work.

MY BEAUTIFUL HOME DESIGN

Issued Feb 11, 2026

DOB filing B01272168-I1-GC-CX#1
Show 1 more records
General ConstructionSep 9, 2025Signed-off

Remove Cellar partitions and repair damaged Cellar finishes as shown. No change to use, occupancy, egress or floor area.

MY BEAUTIFUL HOME DESIGN

Issued Sep 10, 2025

DOB filing B01260460-I1-GC#1

Building violations (DOB) 1

LANDMK-LANDMARK NONENov 20, 2025No disposition date supplied

Agency description not supplied.

DOB record 2816495
Transaction history · 1 deed

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

RecordedUnitTypeAmount
Aug 5, 2026-DEED$2.83M

More buildings in Flatbush

Sources, coverage & freshness

Sources & freshness

Research contract nyc_property_research.v1 · snapshot Oct 24, 2026

Stable property ID: nyc:bbl:3051020098

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 Jun 3, 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
1 recorded deed in the current corpus · latest record Aug 5, 2026

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 May 14, 2026

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
0 violations in the current corpus

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
1 violation in the current corpus · latest record Nov 20, 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.