104 Prospect Place, Brooklyn, NY 11217
BBL 3009390023 (Borough 3, Block 939, Lot 23) · BIN 3018936 · Last updated: · Park Slope · ZIP 11217
Summary · as of November 9, 2026
104 Prospect Place (Brooklyn, NY 11217; tax lot BBL 3009390023) is a two-family home (building class B1: two-family home, brick), built around 1899, on a 1,875 sq ft lot zoned R6B. City tax records list the owner as SIQUEIROS, JACQUELINE; per ACRIS, a deed to this owner dated September 21, 2017 lists a price of $3,300,000. The Department of Finance's final market value for tax year 2027 is $4,167,000. As of November 9, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- SIQUEIROS, JACQUELINE
- Building class
- B1 · Two-family home, brick
- Year built · units
- 1899 · 2 res.
- Lot area · zoning
- 1,875 sq ft · R6B
- Market value (DOF)
- $4,167,000 FY2027
- Last priced deed
- $3,300,000 · 2017-09-21
- BBL
- 3009390023
- BIN
- 3018936
- 1Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violationsBIS 0 · DOB NOW safety 0
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “104 Prospect Place, Brooklyn, NY 11217 (BBL 3009390023)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/104-prospect-place-3009390023. 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)
- SIQUEIROS, JACQUELINEThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- B1 – Two-family home, brickThe 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.
- Floors
- 3
- Units
- 2 residential / 2 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,875 sq ft (18.75 ft × 100 ft)
- Building floor area
- 2,880 sq ft
- Zoning
- R6B, R7A, C2-4The zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
- Built vs. allowed density (FAR)
- 1.54 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 3009390023 (Borough 3, Block 939, Lot 23) · BIN 3018936BBL 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 2026-11-09; 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)
- $4,167,000The 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
- $250,020The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $51,595Assessed 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 | $4,167,000 | $250,020 | 1 |
| 2026 | Final | $3,748,000 | $224,880 | 1 |
| 2025 | Final | $3,572,000 | $214,320 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-09
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.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 2022-03-25 | DEED | $0 / not stated | Siqueiros, Kristian; Siqueiros, Jacqueline | Siqueiros, Jacqueline | 2022042100783001 |
| 2017-09-21 | DEED | $3,300,000 | Guerra, Carlos O; Guerra, Christine S | Siqueiros, Jacqueline; Siqueiros, Kristian | 2017092500889002 |
| 2004-04-20 | DEED | $0 / not stated | Guerra, Christine S; Guerra, Carlos O | Guerra, Christine S; Guerra, Carlos O | 2004050500449001 |
| 1999-06-11 | DEED | $0 / not stated one deed covering 2 lots; price is for all of them | Guerra, Carlos O; Morrison, Mary P; Guerra, Christine S | Guerra, Christine S; Guerra, Carlos O | FT_3220006748922 |
| 1996-11-25 | DEED | $0 / not stated one deed covering 2 lots; price is for all of them | Pangia, Michael D.; Pangia, Marylouise | Guerra, Carlos O.; Guerra, Christine; Morrison, Mary P. | FT_3440005483144 |
| 1978-07-20 | DEED | $0 / not stated one deed covering 2 lots; price is for all of them | Saari Sandra A; Wessler Sandra A | Pangia Marylouise; Pangia Michael D | BK_7830100700988 |
| 1974-01-11 | DEED | $0 / not stated | Wessler Harry F; Wessler Sandra A | Wessler Sandra A | BK_7430068301921 |
| 1971-10-05 | DEED | $0 / not stated one deed covering 2 lots; price is for all of them | Smith Edna D | Wessler Sandra Ann; Wessler Harry F | BK_7130051101304 |
| 1966-08-18 | DEED | $0 / not stated one deed covering 67 lots; price is for all of them | Diaz Federico | Olivero Guillermo | BK_6630022200494 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-09; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-09; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-09
DOB job filings 1 open of 3
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 |
|---|---|---|---|---|
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 2019-05-29 | 340676290 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2019-05-07 | $19,000 |
| Not open LOC Issued · 2026-04-20 | B01311047-I1 DOB NOW | Alteration | 2025-11-05 | $38,093 |
| Not open SIGNED OFF · 2018-06-22 | 321716425 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2018-01-18 | $1,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-08; last loaded 2026-11-09; DOB Job Application Filings (BIS) — city dataset updated 2026-11-08; last loaded 2026-11-09
Work permits 4
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 |
|---|---|---|---|---|
| 2025-11-07 | 2026-06-12 | B01311047-I1 DOB NOW | Solar INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY. | Signed-off |
| 2019-05-29 | 2019-11-17 | 340676290 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2019-05-29 | 2019-11-17 | 340676290 BIS | Equipment work / Mechanical/HVAC | ISSUED (initial) |
| 2018-03-20 | 2019-03-20 | 321716425 BIS | Alteration | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-09; last loaded 2026-11-09; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07
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). The active-DOB count in the summary also includes DOB NOW safety violations, listed in the next section.
No records found in this dataset for this lot.
Source: DOB Violations — city dataset updated 2026-11-09; last loaded 2026-11-09
DOB safety violations (DOB NOW) 0 active of 0
Safety violations DOB NOW publishes for devices such as boilers, elevators and gas piping (Local Law 152). Active means the published status is Active. Dismissed, cured, waived and successfully disputed violations are counted under “resolved or not active” and are not open items. Active ones are included in the summary’s active DOB violation total.
No records found in this dataset for this lot.
Source: DOB Safety Violations (DOB NOW) — city dataset updated 2026-11-09; last loaded 2026-11-09
ECB violations (DOB) 0 active of 0
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.
No records found in this dataset for this lot.
Source: DOB ECB Violations — city dataset updated 2026-11-07; last loaded 2026-11-09
OATH tickets (all agencies) 0 unpaid of 5
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 # |
|---|---|---|---|---|---|---|
| Hearing pending NEW ISSUANCE | 2026-09-03 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | SIQUEIROS JACQUELINE | $50 / $0 / $50 | 049878298N |
| No balance due PAID IN FULL | 2007-10-20 | Sanitation Others | FAILURE TO PROPERLY PUT RECYCLABLES OUT FOR COLLECTION | CARLOS | $25 / $25 / — | 0157703179 |
| No balance due PAID IN FULL | 2004-09-29 | $25 / $25 / — | 0141904099 | |||
| No balance due PAID IN FULL | 2004-01-20 | $100 / $100 / — | 0138888320 | |||
| No balance due PAID IN FULL | 2000-11-11 | $25 / $25 / — | 0114528848 |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-09; last loaded 2026-11-09
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 2026-11-09; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-09
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 2026-11-09; last loaded 2026-11-09
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 2026-11-09; last loaded 2026-11-09
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 2026-11-09; last loaded 2026-11-09
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 Prospect Pl
- 106 Prospect Place (19 ft)
- 102 Prospect Place (20 ft)
- 100 Prospect Place (38 ft)
- 108 Prospect Place (39 ft) (one open item)
- 98 Prospect Place (56 ft) (seven open items)
- 110 Prospect Place (61 ft) (one open item)
Same tax block (939), closest first
- 280 Flatbush Avenue (174 ft) (one open item)
- 284 Flatbush Avenue (201 ft)
- 286 Flatbush Avenue (220 ft) (40 open items)
- 101 6th Avenue (275 ft)
- 99 6th Avenue (276 ft) (eight open items)
- 97 6th Avenue (278 ft) (three open items)
Open-item counts as of November 9, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs