835 Clarkson Avenue, Brooklyn, NY 11203

Lot & building

Basic facts about the tax lot and building from the city’s PLUTO database.

Owner (as listed by the city)

THE CLARKSON WINTHROP GROUP LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.

Building class

C7 – Walk-up apartments, more than six families, with storesThe Department of Finance’s category for what kind of building this is.

Land use

Mixed residential & commercialCity Planning’s broad category of how the lot is used.

Year built

1936Often an estimate for older buildings.

Floors

4

Units

25 residential / 27 totalResidential units are apartments; total includes stores and offices.

Buildings on lot

1

Lot size

8,000 sq ft (80 ft × 100 ft)

Building floor area

26,536 sq ft (incl. 1,384 sq ft commercial)

Zoning

C8-2The zoning district sets what can be built and used here. Commercial district.

Built vs. allowed density (FAR)

3.32 built / 0.00 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).

Identifiers

BBL 3046200035 (Borough 3, Block 4620, Lot 35) · BIN 3100202BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Agency lookups: DOB BIS · ZoLa (zoning map) · ACRIS

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-06; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)

$1,931,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.

Assessed value

$868,950The portion of market value that taxes are calculated on (capped by law for small homes).

Taxable value (final)

$811,530Assessed value minus any exemptions.

Tax class

Tax class 2 – residential, 4+ units

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-06

Sales & deed history 9

Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-06

DOB job filings 6 open of 13

A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06

Work permits 17

Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.

Showing 12 of 17 records. The API and the source dataset have the full list.

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 1 active of 4

Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).

Source: DOB Violations — city dataset updated 2026-11-05; data as of 2026-11-06

ECB violations (DOB) 0 active of 7

DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.

Source: DOB ECB Violations — city dataset updated 2026-11-05; data as of 2026-11-06

OATH tickets (all agencies) 20 unpaid of 135

Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.

Showing 12 of 135 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-06; data as of 2026-11-06

HPD registration & contacts

Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.

HPD building ID

221452

Last registered

2026-10-20

Registration valid until

2027-09-01 CurrentRegistrations must be renewed every year.

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-06; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-06

HPD housing-code violations 59 open of 553

Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.

Showing 20 of 553 records — open violations are listed first; the API lists every one. The API and the source dataset have the full list.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-06

HPD complaints 75

Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.

Showing 10 of 75 records. The API and the source dataset have the full list.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-06; data as of 2026-11-06

311 requests (last 12 months) 22

Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.

Showing 10 of 22 records. The API and the source dataset have the full list.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-06; data as of 2026-11-06

Nearby properties

More in East Flatbush-Rugby: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

On Clarkson Ave

• 830 Clarkson Avenue (34 open items)
• 842 Clarkson Avenue (two open items)
• 844 Clarkson Avenue (five open items)
• 846 Clarkson Avenue (11 open items)
• 848 Clarkson Avenue (eight open items)
• 850 Clarkson Avenue (seven open items)
• 854 Clarkson Avenue (29 open items)
• 856 Clarkson Avenue (seven open items)
• 862 Clarkson Avenue (25 open items)
• 863 Clarkson Avenue (29 open items)

Same tax block (4620)

• 623 Utica Avenue (five open items)
• 870 Winthrop Street (three open items)
• 156 East 51st Street
• 158 East 51st Street (three open items)
• 162 East 51st Street
• 164 East 51st Street
• 166 East 51st Street (38 open items)
• 170 East 51st Street (27 open items)
• 174 East 51st Street (one open item)
• 178 East 51st Street (seven open items)

All properties on Clarkson Ave, Brooklyn · All of Brooklyn 11203