312 3rd Avenue, Brooklyn, NY 11215

Lot & building

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

Owner (as listed by the city)

EXTRA SPACE OF BROOKLYN THIRD AVENUE LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.

Building class

E7 – Warehouse (subtype E7)The Department of Finance’s category for what kind of building this is.

Land use

Industrial & manufacturingCity Planning’s broad category of how the lot is used.

Year built

2003Often an estimate for older buildings.

Floors

4

Units

0 residential / 1 totalResidential units are apartments; total includes stores and offices.

Buildings on lot

1

Lot size

42,816 sq ft (154.67 ft × 190 ft)

Building floor area

90,000 sq ft (incl. 90,000 sq ft commercial)

Zoning

M1-4/R6B, M1-4/R7X, GThe zoning district sets what can be built and used here. Manufacturing district.

Built vs. allowed density (FAR)

2.10 built / 2.00 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 3004530054 (Borough 3, Block 453, Lot 54) · BIN 3007684BBL 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; last loaded 2026-11-08; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08

Tax assessment

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

Market value (tax year 2027, final roll)

$20,286,000The 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

$9,128,700The portion of market value that taxes are calculated on (capped by law for small homes).

Taxable value (final)

$5,773,590Assessed value minus any exemptions.

Tax class

Tax class 4 – commercial / industrial

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-08

Sales & deed history 4

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; last loaded 2026-11-08; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-08

DOB job filings 0 open of 8

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 2026-11-07; last loaded 2026-11-08; DOB Job Application Filings (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-08

Work permits 22

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

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07

DOB violations 1 active of 23

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).

Showing 15 of 23 records. The API and the source dataset have the full list.

Source: DOB Violations — city dataset updated 2026-11-07; last loaded 2026-11-08

ECB violations (DOB) 0 active of 2

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 2026-11-07; last loaded 2026-11-08

OATH tickets (all agencies) 2 unpaid of 43

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 43 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-08; last loaded 2026-11-08

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.

No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; last loaded 2026-11-08; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-08

HPD housing-code violations 0 open of 0

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.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-08; last loaded 2026-11-08

HPD complaints 0

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.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-08; last loaded 2026-11-08

311 requests (last 12 months) 3

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.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; last loaded 2026-11-07; a later sync attempt failed on 2026-11-08; showing the last successful load

Nearby properties

Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.

More in Park Slope: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on 3 Ave

• 308 3rd Avenue (126 ft) (three open items)
• 306 3rd Avenue (141 ft) (26 open items)
• 304 3rd Avenue (155 ft) (two open items)
• 302 3rd Avenue (171 ft) (one open item)
• 300 3rd Avenue (217 ft) (one open item)
• 315 3rd Avenue (269 ft) (two open items)

Same tax block (453), closest first

• 474 Carroll Street (183 ft) (two open items)
• 472 Carroll Street (190 ft) (12 open items)
• 476 Carroll Street (200 ft)
• 478 Carroll Street (207 ft)
• 480 Carroll Street (216 ft) (one open item)
• 482 Carroll Street (225 ft) (one open item)

All properties on 3 Ave, Brooklyn · Brooklyn 11215