527 3rd Street, Brooklyn, NY 11215
BBL 3010780063 (Borough 3, Block 1078, Lot 63) · BIN 3025331 · Last updated:
Summary · as of October 31, 2026
527 3rd Street (Brooklyn, NY 11215; tax lot BBL 3010780063) is an one-family home (building class A4: one-family city residence), built around 1899, on a 1,900 sq ft lot zoned R6B. City tax records list the owner as RD1A LLC; per ACRIS, a deed to this owner dated June 22, 2026 lists a price of $9,500,000. The Department of Finance's final market value for tax year 2027 is $5,594,000. 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. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- RD1A LLC
- Building class
- A4 · One-family city residence
- Year built · units
- 1899 · 1 res.
- Lot area · zoning
- 1,900 sq ft · R6B
- Market value (DOF)
- $5,594,000 FY2027
- Last priced deed
- $9,500,000 · 2026-06-22
- BBL
- 3010780063
- BIN
- 3025331
- 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, “527 3rd Street, Brooklyn, NY 11215 (BBL 3010780063)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/527-3rd-street-3010780063. 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)
- RD1A LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- A4 – One-family city residenceThe 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
- 1899Often an estimate for older buildings. Major alteration recorded: 2011.
- Floors
- 4
- Units
- 1 residential / 1 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,900 sq ft (20 ft × 95 ft)
- Building floor area
- 4,016 sq ft
- Zoning
- R6BThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 2.11 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).
- Historic district
- Park Slope Historic DistrictExterior changes in a historic district need Landmarks Preservation Commission approval.
- Identifiers
- BBL 3010780063 (Borough 3, Block 1078, Lot 63) · BIN 3025331BBL 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)
- $5,594,000The 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
- $335,640The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $82,978Assessed 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 | $5,594,000 | $335,640 | 1 |
| 2026 | Final | $6,423,000 | $385,380 | 1 |
| 2025 | Final | $5,298,000 | $317,880 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02
Sales & deed history 6
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 |
|---|---|---|---|---|---|
| 2026-06-22 | DEED | $9,500,000 | The 527 3rd Street Irrevocable Trust; Sandra M Clark, Trustee | Rd1a Llc | 2026062600577001 |
| 2022-04-04 | DEED | $7,300,000 | Archer Holdings Brooklyn Llc | Sandra M. Clark, Trustee; 527 3rd Street Irrevocable Trust | 2022040701310001 |
| 2017-07-27 | DEED | $6,850,000 | Hernandez-Rosenblum, Elena; Rosenblum, Steven | Archer Holdings Brooklyn Llc | 2017073100993001 |
| 2007-08-24 | DEED | $3,225,000 | Lewis Houck, Laura E; Houck, John W | Rosenblum, Steven; Hernandez-Rosenblum, Elena | 2007090600338003 |
| 1995-09-15 | DEED | $0 / not stated | Maucher, Ellen Jane; Maucher, Arnold | Houck, Laura E. Lewis; Houck, John W. | FT_3060004952406 |
| 1970-06-29 | DEED | $0 / not stated | Ditucci Salvatore; Ditucci Catherine | Maucher Ellen Jane; Maucher Arnold | BK_7030041901853 |
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 5
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 · 2016-03-14 | 340248155 BIS | A3 – Minor alteration (one type of work) | 2015-04-13 | — |
| Not open SIGNED OFF · 2016-03-14 | 340248164 BIS | A3 – Minor alteration (one type of work) | 2015-04-13 | — |
| Not open SIGNED OFF · 2012-10-05 | 320225145 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2010-09-28 | $138,000 |
| Not open SIGNED OFF · 2012-08-14 | 320069787 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2009-09-03 | $174,000 |
| Not open SIGNED OFF · 2006-06-22 | 300832366 BIS | A1 – Major alteration (changes use, egress or occupancy) | 1999-02-02 | $9,500 |
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 20
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 |
|---|---|---|---|---|
| 2015-04-15 | 2016-04-14 | 340248164 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2015-04-15 | 2016-04-14 | 340248164 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2015-04-15 | 2016-04-14 | 340248155 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2012-05-21 | 2013-05-21 | 320069787 BIS | Plumbing / Plumbing | ISSUED (renewal) |
| 2011-03-31 | 2012-03-30 | 320069787 BIS | Plumbing / Plumbing | ISSUED (renewal) |
| 2011-03-25 | 2012-03-24 | 320225145 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2011-03-14 | 2012-03-13 | 320069787 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2011-03-14 | 2012-03-13 | 320069787 BIS | Equipment work / Mechanical/HVAC | ISSUED (renewal) |
| 2011-03-14 | 2012-03-13 | 320069787 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2011-03-11 | 2012-03-10 | 320225145 BIS | Alteration | ISSUED (initial) |
| 2010-04-01 | 2011-04-01 | 320069787 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2010-03-12 | 2011-03-12 | 320069787 BIS | Equipment work / Mechanical/HVAC | ISSUED (renewal) |
Showing 12 of 20 records. The API and the source dataset have the full list.
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 | 2012-05-14 | C-CONSTRUCTION OTHER OPTIONAL | STOP ALL WORK MAKE SITE SAFE CONTACT DOB | V*051412C0609WG |
Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-02
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.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2010-08-13 | CLASS - 2 | FAILURE TO PROVIDE APPROVED / ACCEPTED PLANS @ JOB SITE @ TIME OF INSPECTION NOTED: CONTRACTOR FAILED TO PROVIDE APPROVED PLANS @ JOB SITE @ TIME OF INSPECTION. STOP ALL WORK CALL 2124421544 FOR REINSPECTION JO | $250 / $250 / $0 | 34845279M |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2010-08-13 | CLASS - 2 | 104.7.7 MISC VIO. FAILURE TO FILE TRI FORM & DESIGNATE OPERATION SUBJECT TO CONTROLLED INSPECTION ON PLANS PRIOR TO THE COMMENCEMENT OF WORK UNDER CONTROLLED INSPECTION. APPLICANT FAILED TO DESIGNATE OPERATION | $400 / $400 / $0 | 34845280J |
Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02
OATH tickets (all agencies) 0 unpaid of 11
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 Default PAID IN FULL · DEFAULTED | 2024-03-12 | Dep - Bureau Of Env. Complianc | IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 1ST OFF | AMAZON LOGISTICS INC | $1,000 / $1,342 / $0 | 000863869H |
| No balance due PAID IN FULL | 2020-12-12 | Sanitation Others | IMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 1 TO 8 DWELLING UNITS | ARCHER HOLDINGS BROOKLYN LLC | $25 / $25 / $0 | 0213149586 |
| No balance due PAID IN FULL | 2018-04-28 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | ARCHER HOLDINGS BROOKLYN LLC | $25 / $25 / $0 | 044453717N |
| No balance due HEARING COMPLETED · IN VIOLATION | 2014-05-19 | Fire Department Of Nyc | FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS | ROSENBLUM STEVEN | — / — / — | 012033605R |
| No balance due Default PAID IN FULL · DEFAULTED | 2012-03-27 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES | ROSENBLUM | $300 / $130 / — | 041624658R |
| No balance due Default PAID IN FULL · DEFAULTED | 2011-08-25 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | ROSENBLUM | $330 / $330 / — | 0800110796 |
| No balance due PAID IN FULL · IN VIOLATION | 2010-08-13 | Dept. Of Buildings | FAILURE TO PROVIDE APPROVED ACCEPTED PLANS AT JOB SITE AT TIME OF INSP | STEVEN ROSENBLUM | $250 / $250 / — | 034845279M |
| No balance due PAID IN FULL · IN VIOLATION | 2010-08-13 | Dept. Of Buildings | MISCELLANEOUS VIOLATIONS | STEVEN ROSENBLUM | $400 / $400 / — | 034845280J |
| No balance due PAID IN FULL | 2008-05-28 | Sanitation Others | FAILURE TO PROPERLY PUT RECYCLABLES OUT FOR COLLECTION | STEVEN | $25 / $25 / — | 0160405080 |
| No balance due Default PAID IN FULL · DEFAULTED | 2008-01-12 | Dos - Enforcement Agents | NON-RECYCLABLES LEFT IN RECYCLING CONTAINER FOR COLLECTION | ROSENBLUM | $25 / $25 / — | 041521016N |
| No balance due PAID IN FULL | 2002-05-17 | $50 / $50 / — | 0128698204 |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-01; data as of 2026-11-01
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) 0
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.
No records found in this dataset for this lot.
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02
Nearby properties
On 3 St
- 526 3rd Street
- 528 3rd Street
- 529 3rd Street
- 525 3rd Street
- 524 3rd Street (one open item)
- 530 3rd Street
- 531 3rd Street (two open items)
- 523 3rd Street (two open items)
- 522 3rd Street (two open items)
- 532 3rd Street
Same tax block (1078)
- 203 7th Avenue (31 open items)
- 197 7th Avenue (three open items)
- 195 7th Avenue (14 open items)
- 193 7th Avenue (seven open items)
- 189 7th Avenue (17 open items)
- 514 2nd Street (two open items)
- 518 2nd Street
- 520 2nd Street (49 open items)
- 522 2nd Street (seven open items)
- 524 2nd Street
All properties on 3 St, Brooklyn · All of Brooklyn 11215 (Park Slope)
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