237 77th Street, Brooklyn, NY 11209
BBL 3059490066 (Borough 3, Block 5949, Lot 66) · BIN 3361165, 3149178 · Last updated:
Summary · as of October 31, 2026
237 77th Street (Brooklyn, NY 11209; tax lot BBL 3059490066) is a two-family home (building class B3: two-family home converted from one-family), built around 1910, on a 5,467 sq ft lot zoned R4A. City tax records list the owner as NG, KELVIN KUONG CHONG; per ACRIS, a deed to this owner dated October 16, 2017 lists a price of $2,000,000. The Department of Finance's final market value for tax year 2027 is $2,702,000. As of October 31, 2026, NYC Open Data shows no open DOB jobs, active DOB/ECB violations, open HPD violations or unpaid OATH tickets for this lot. 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
- NG, KELVIN KUONG CHONG
- Building class
- B3 · Two-family home converted from one-family
- Year built · units
- 1910 · 2 res.
- Lot area · zoning
- 5,467 sq ft · R4A
- Market value (DOF)
- $2,702,000 FY2027
- Last priced deed
- $2,000,000 · 2017-10-16
- BBL
- 3059490066
- BIN
- 3361165, 3149178
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “237 77th Street, Brooklyn, NY 11209 (BBL 3059490066)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/237-77th-street-3059490066. 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)
- NG, KELVIN KUONG CHONGThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- B3 – Two-family home converted from one-familyThe Department of Finance’s category for what kind of building this is.
- Land use
- One- & two-family buildingsCity Planning’s broad category of how the lot is used.
- Year built
- 1910Often an estimate for older buildings. Major alteration recorded: 2019.
- Floors
- 3
- Units
- 2 residential / 2 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 2
- Lot size
- 5,467 sq ft (50 ft × 109.33 ft)
- Building floor area
- 3,656 sq ft
- Zoning
- R4A, BRThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 0.67 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 3059490066 (Borough 3, Block 5949, Lot 66) · BIN 3361165, 3149178BBL 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 2026-11-02; 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)
- $2,702,000The 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
- $162,120The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $98,789Assessed value minus any exemptions.
- Tax class
- Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $2,702,000 | $162,120 | 1 |
| 2026 | Final | $2,269,000 | $136,140 | 1 |
| 2025 | Final | $2,579,000 | $154,740 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02
Sales & deed history 5
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.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 2017-10-16 | DEED | $2,000,000 | Tiedemann, Doris; Tiedemann, Jonathan | Ng, Kelvin Kuong Chong; Tong, Karen Minjing | 2017102701407001 |
| 2006-03-22 | DEED | $0 / not stated | Tiedemann, Jonathan | Tiedemann, Doris; Tiedemann, Jonathan | 2006041700785001 |
| 1999-06-30 | DEED | $0 / not stated | Falsey, Barbara; Falsey, Sarah Margaret; Falsey, Susan Marie; Falsey, Elizabeth | Tiedemann, Jonathan | FT_3000006835000 |
| 1990-04-30 | DEED | $0 / not stated | Falsey, Mary T | Falsey, Sarah Margaret; Falsey, Barbara; Falsey, Elizabeth; Falsey, Susan Marie | FT_3150001546215 |
| 1988-10-05 | DEED | $0 / not stated | Falsey, Mary T; Falsey, Edward F | Falsey, Mary T | FT_3790001406979 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02
DOB job filings 0 open of 4
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.
| Status | Job # | Type | Filed | Est. cost |
|---|---|---|---|---|
| Not open SIGNED OFF · 2018-12-21 | 340578814 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2018-01-22 | $376,750 |
| Not open SIGNED OFF · 2019-05-22 | 320910555 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2018-01-10 | $487,020 |
| Not open PLAN EXAM - APPROVED · 2017-12-15 | 340570322 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2017-12-15 | $55,000 |
| Not open SIGNED OFF · 2018-08-10 | 340569968 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2017-12-14 | $50,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31
Work permits 5
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.
| Issued | Expires | Job # | Work | Permit status |
|---|---|---|---|---|
| 2018-08-02 | 2019-04-04 | 320910555 BIS | Alteration | ISSUED (initial) |
| 2018-07-26 | 2019-07-26 | 320910555 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2018-03-01 | 2019-03-01 | 340578814 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2018-02-27 | 2018-06-20 | 340578814 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2018-02-13 | 2018-06-20 | 340569968 BIS | Equipment work / Other / general construction | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31
DOB violations 0 active of 1
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).
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2018-01-24 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*012418AEUHAZ100508 |
Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-02
ECB violations (DOB) 0 active of 4
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.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2018-05-04 | CLASS - 2 | FAILURE TO MAINTAIN ADEQUATE HOUSKEEPING PER SECTION REQUIREMENTS; NOTED AT TIME OF INSPECTION OBSERVED CONSTRUCTION DEBRIS STORED AT FRON PORCH. RMDY: MAINTAIN ADEQUATE HOUSEKEEPING. | $0 / $0 / $0 | 35327823N |
| Resolved Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED Written off refers to the penalty, not the violation. | 2017-10-27 | CLASS - 2 | RESIDENCE ALTERED FOR OCCUPANCY AS A DWELLING FOR MORE THAN THE LEGALLY APPROVED NUMBER OF FAMILIES. DEPT. OF BUILDING RECORDS INDICATES PREMISES TO BE LEGALLY APPROVED FOR A (1) FAMILY. ALTERATION WORK NOTED: | $3,000 / $0 / $0 | 35291658R |
| Resolved Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED Written off refers to the penalty, not the violation. | 2017-10-27 | CLASS - 1 | WORK WITHOUT A PERMIT. WORK NOTED: AT CELLAR LEVEL CREATED FULL HEIGHT PARTITIONS FOR (2) ROOMS. INSTALLED WATER AND WASTE LINES FOR A (3) PIECE BATHROOM (TOILET, SINK, TUB) AND RESIDENTIAL SINK AT KITCHEN. INS | $4,000 / $0 / $0 | 35291659Z |
| Resolved Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED Written off refers to the penalty, not the violation. | 2018-01-19 | CLASS - 1 | FAILURE TO COMPLY W/THE COMM'S ORDER CONTAINED IN SUMMONS/VIO#35291659Z ISSUED ON 10/27/17 & TO FILE A C OF C PURSUANT TO 28-201.1 & 1RCNY 102-01. WOKR W/O PERMIT. NOTE AT CELLAR LEVEL CREATED FULL HEIGHT PARTI | $6,000 / $0 / $0 | 35283005J |
Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02
OATH tickets (all agencies) 0 unpaid of 8
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.
| Status | Date | Agency | Charge | Respondent | Imposed / paid / balance | Ticket # |
|---|---|---|---|---|---|---|
| No balance due HEARING COMPLETED · IN VIOLATION | 2018-05-04 | Dept. Of Buildings | FAILURE TO MAINTAIN ADEQUATE HOUSEKEEPING PER SECTION REQUIREMENTS | KELVIN KUONG CHONG NG | $0 / $0 / $0 | 035327823N |
| No balance due HEARING COMPLETED · IN VIOLATION | 2018-05-04 | Fire Department Of Nyc | STORAGE, ACCUMULATION AND REMOVAL OF COMBUSTIBLE MATERIAL AND WASTE | NG KELVIN KUONG CHONG | $0 / $0 / $0 | 011645711L |
| No balance due WRITTEN OFF · WRITTEN OFF | 2018-01-19 | Dept. Of Buildings | UNLAWFUL ACTS.FAILURE TO COMPLY WITH AN ORDER OF THE COMMISSIONER | TIEDEMANN JONATHAN | $6,000 / $0 / $0 | 035283005J |
| No balance due WRITTEN OFF · WRITTEN OFF | 2017-10-27 | Dept. Of Buildings | RESIDENCE ALTERED FOR MORE THAN LEGALLY AUTHORIZED NUMBER OF FAMILIES | TIEDEMANN | $3,000 / $0 / $0 | 035291658R |
| No balance due WRITTEN OFF · WRITTEN OFF | 2017-10-27 | Dept. Of Buildings | WORK WITHOUT A PERMIT | TIEDEMANN | $4,000 / $0 / $0 | 035291659Z |
| No balance due PAID IN FULL · SETTL IN-VIO | 2017-01-10 | Dos - Enforcement Agents | SNOW,ICE DIRT ON SIDEWALKS | TIEDEMANN | $350 / $232 / $0 | 041576026P |
| No balance due PAID IN FULL · SETTL IN-VIO | 2012-01-11 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES | TIEDEMANN | $300 / $297 / $0 | 041695034R |
| No balance due Default PAID IN FULL · DEFAULT | 2002-09-19 | $25 / $25 / — | 0131216847 |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02
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 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02
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 2026-11-02; data as of 2026-11-02
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 2026-11-02; data as of 2026-11-02
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.
| Opened | Agency | Complaint | Status | Closed |
|---|---|---|---|---|
| 2025-11-16 | NYPD | Illegal Parking – Blocked Hydrant | Closed | 2025-11-16 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02
Nearby properties
On 77 St
- 234 77th Street (one open item)
- 240 77th Street (one open item)
- 232 77th Street
- 243 77th Street
- 231 77th Street (one open item)
- 246 77th Street
- 227 77th Street
- 249 77th Street
- 225 77th Street
- 250 77th Street (one open item)
Same tax block (5949)
- 7615 Ridge Boulevard (one open item)
- 7609 Ridge Boulevard
- 7603 Ridge Boulevard
- 212 76th Street
- 218 76th Street (one open item)
- 226 76th Street
- 232 76th Street
- 240 76th Street (three open items)
- 246 76th Street (three open items)
- 250 76th Street
All properties on 77 St, Brooklyn · All of Brooklyn 11209 (Bay Ridge)
Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs