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317 77th Street, Brooklyn, NY 11209

BBL 3059500080 (Borough 3, Block 5950, Lot 80) · BIN 3361177, 3149231 · Last updated:

Summary · as of November 5, 2026

317 77th Street (Brooklyn, NY 11209; tax lot BBL 3059500080) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1899, on a 3,280 sq ft lot zoned R4A. City tax records list the owner as MOKADDAM, MONA; per ACRIS, a deed to this owner dated July 29, 2021 lists a price of $1,100,000. The Department of Finance's final market value for tax year 2027 is $1,371,000. As of November 5, 2026, NYC Open Data shows three DOB jobs with a permit issued but no sign-off. There was one 311 request in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
MOKADDAM, MONA
Building class
C0 · Three-family walk-up
Year built · units
1899 · 3 res.
Lot area · zoning
3,280 sq ft · R4A
Market value (DOF)
$1,371,000 FY2027
Last priced deed
$1,100,000 · 2021-07-29
BBL
3059500080
BIN
3361177, 3149231

How to cite: NYC Property Facts, “317 77th Street, Brooklyn, NY 11209 (BBL 3059500080)”, data as of 2026-11-05, https://nycpropertyfacts.com/ny/brooklyn/317-77th-street-3059500080. Source: NYC Open Data.

Lot & building

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

Owner (as listed by the city)
MOKADDAM, MONAThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C0 – Three-family walk-upThe Department of Finance’s category for what kind of building this is.
Land use
Multi-family walk-up buildingsCity Planning’s broad category of how the lot is used.
Year built
1899Often an estimate for older buildings. Major alteration recorded: 2022.
Floors
2.5
Units
3 residential / 3 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
2
Lot size
3,280 sq ft (30 ft × 109.33 ft)
Building floor area
1,949 sq ft
Zoning
R4A, BRThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
0.59 built / 1.00 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 3059500080 (Borough 3, Block 5950, Lot 80) · BIN 3361177, 3149231BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-05; 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)
$1,371,000The 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
$82,260The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$61,674Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$1,371,000$82,2601
2026Final$1,294,000$77,6401
2025Final$1,237,000$74,2201

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-05

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.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
2021-09-08DEED$0 / not statedNazir, Bibi; Mokaddam, Mona; Mokaddam, HassanNazir, Bibi; Mokaddam, Mona; Nazir, Koreena Zabeeda; Mokaddam, Hassan2021091500985001
2021-07-29DEED$1,100,000Griffin, William M Sr; Griffin, William; Griffin, William M; Griffin, John F; Griffin, Administrator, James; Griffin, William Michael; Estate Of Patrick P. GriffinMokaddam, Hassan; Mokaddam, Mona; Nazir, Bibi2021080300689002
2001-05-31DEED$0 / not statedGriffin, Philip J; Griffin, Bridget MGriffin, John J; Griffin, Patrick P; Griffin, WilliamFT_3910007784591
1985-03-18DEED$0 / not statedGriffin, Bridget MGriffin, Philip J; Griffin, Bridget MFT_3600001078360

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-05

DOB job filings 3 open of 6

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.

StatusJob #TypeFiledEst. cost
Permitted, not signed off
Permit Entire · 2022-06-23
B00672945-I1
DOB NOW
Alteration2022-02-02$5,000
Permitted, not signed off
Permit Entire · 2023-11-02
B00659402-I1
DOB NOW
Alteration2022-01-13$200,000
Permitted, not signed off
Permit Entire · 2024-01-17
B00660670-I1
DOB NOW
Alteration2022-01-13$82,000
Not open
Approved · 2024-01-08
B00660670-P2
DOB NOW
Alteration2023-10-25$82,000
Not open
Approved · 2023-09-01
B00660670-P1
DOB NOW
Alteration2023-08-22$82,000
Not open
Approved · 2023-11-02
B00659402-P1
DOB NOW
Alteration2023-08-22$200,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-05; DOB Job Application Filings (BIS) — city dataset updated 2026-11-04; data as of 2026-11-05

Work permits 7

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.

IssuedExpiresJob #WorkPermit status
2024-01-172024-04-10B00660670-I1
DOB NOW
Plumbing
PLUMBING WORK IN CONJUNCTION WITH JOB # B00659402-I1
Signed-off
2023-02-082024-02-08B00659402-I1
DOB NOW
Mechanical Systems
REFURBISH EXISTING 2 FAMILY HOUSE. NO CHANGE TO EXISTING USE, OCCUPANCY OR EGRESS
Permit Issued
2023-02-082024-02-08B00659402-I1
DOB NOW
General Construction
REFURBISH EXISTING 2 FAMILY HOUSE. NO CHANGE TO EXISTING USE, OCCUPANCY OR EGRESS
Permit Issued
2022-10-192023-02-01B00659402-I1
DOB NOW
General Construction
REFURBISH EXISTING 2 FAMILY HOUSE. NO CHANGE TO EXISTING USE, OCCUPANCY OR EGRESS
Permit Issued
2022-10-192023-02-01B00659402-I1
DOB NOW
Mechanical Systems
REFURBISH EXISTING 2 FAMILY HOUSE. NO CHANGE TO EXISTING USE, OCCUPANCY OR EGRESS
Permit Issued
2022-10-052023-10-05B00660670-I1
DOB NOW
Plumbing
PLUMBING WORK IN CONJUNCTION WITH JOB # B00659402-I1
Signed-off
2022-06-232023-02-01B00672945-I1
DOB NOW
Construction Fence
CONSTRUCTION FENCE IN CONJUNCTION WITH JOB # B00659402-I1
Permit Issued

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-05; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 0

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).

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-05

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.

StatusIssuedSeverityWhat it was forPenalty / paid / balanceECB #
Resolved
Hearing: ADMIT/IN-VIO · Certification: CERTIFICATE ACCEPTED
2022-08-24CLASS - 2WORK WITHOUT PERMIT: AT TIME OF INSPECTION OBSERVED WORKERS ON CONSTRUCT ACTIVITIES, REPLACING WATER LINE PIPES AT CELLAR AND REMODELED BATHROOMS ALSO OBSERVED THE REPLACED DRAIN LINE SYSTEM WITHOUT PERMIT & OB$1,280 / $1,280 / $039068792L
Resolved
Hearing: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED
2008-10-17CLASS - 3WORK W/O A PERMIT. WORK NOTED: AT CELLAR LEVEL OF PREMISES INSTALLED WATER AND WASTE LINES FOR SHOWER. REMEDY: OBTAIN A PERMIT IF FEASIBLE OR RESTORE TO PRIOR LEGAL CONDITION.$200 / $200 / $034707257X

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-05

OATH tickets (all agencies) 0 unpaid of 4

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.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
No balance due
PAID IN FULL · ADMIT IN-VIO
2022-08-24Dept. Of BuildingsWORK WITHOUT A PERMITMOKADDAM MONA$1,280 / $1,280 / $0039068792L
No balance due
PAID IN FULL
2009-07-09Dos - Enforcement AgentsRECYCLABLES PLACED FOR COLLECTION WITH NON-RECYCLABLES 1ST VIOLATIONGRIFFIN$25 / $25 / —042092365P
No balance due
PAID IN FULL · STIPULATED
2008-10-17Dept. Of BuildingsWORK WITHOUT A PERMITPATRICK P GRIFFIN$200 / $200 / $0034707257X
No balance due
PAID IN FULL
2008-03-20Dos - Enforcement AgentsRECYCLABLES PLACED FOR COLLECTION WITH NON-RECYCLABLESGRIFFIN$25 / $25 / —041701024L

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-05

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; data as of 2026-11-05; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-05

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 2026-11-05; data as of 2026-11-05

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 2026-11-05; data as of 2026-11-05

311 requests (last 12 months) 1

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.

OpenedAgencyComplaintStatusClosed
2026-08-11NYPDBlocked Driveway – No AccessClosed2026-08-12

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-05; data as of 2026-11-05

Nearby properties

On 77 St

Same tax block (5950)

All properties on 77 St, Brooklyn · All of Brooklyn 11209

Open-item counts as of November 5, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs