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Three families
51 SOUTH PORTLAND AVE
BROOKLYN · Fort Greene · BIN 3058862
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1866Year Built
3Stories
C0Building Class
R6BZoning
4,248 sfGross Floor Area
3Units
1 Open Violation ▸FDNY Report ↗
Three families · 2,200 sf lot · 1.93 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbingFire Protection
Permit Issued — active, not yet Signed-off
Floor 3Under Construction23p · 1 filing · 14 docs
Floor 2Under Construction21p · 1 filing · 14 docs
Floor 1Under Construction24p · 2 filings · 20 docs
CellarUnder Construction28p · 1 filing · 14 docs
BasementUnder Construction21p · 1 filing · 14 docs
Site & exterior1p · 1 filing · 10 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
05/08/2025$5.2M—— → —$1,231/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
ADVANTAGE ARCHITECTURE PLLC306/18/2026
E4P CONSULTING ENGINEERING PLLC112/17/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KIT MIDDLETON ARCHITECT P C603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
TERRANOVA CONTRACTING CORGeneral Contractor507/08/2026
EQUAL ELECTRICAL CONT INCElectrical103/22/2026
J. CAIAZZO PLBG & HTG CORPFire Protection107/04/2026
LIQUID PLBG & HTNG SCS INPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
RYAN SPECIAL ENGINEERING2018306/18/2026
Building Lifecycle
All (37)Filed (4)Permit Issued (5)Violation (1)Inspection (4)Objection (16)Special Inspection (7)
08/22/2026
Violation issued (ECB, open)
Construction
07/06/2026
Permit issued — General Construction
B01418349-I1-GC
06/18/2026
Filed — Alteration
NEW DECK AND STAIRS AT REAR YARD. NEW DOOR AT FORMER WINDOW OPENING. RE-OPEN FORMER WINDOW OPENING AND INSTALL NEW WINDOW.
B01418349-I1
06/18/2026
Special inspection requirement — Fenestration areas
William Ryan
06/17/2026
Special inspection requirement — Concrete - Cast-In-Place
William Ryan
06/17/2026
Special inspection requirement — Masonry
William Ryan
06/17/2026
Special inspection requirement — Final
William Ryan
06/17/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
William Ryan
06/17/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
William Ryan
05/27/2026
Permit issued — General Construction
B01326508-I1-GC
03/06/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
03/02/2026
Permit issued — Sprinklers
B01326508-S3-EW-SP
02/17/2026
Inspection — Fail-Final PL - Up to 3 Requested Floors
Fail
View inspection ↗
02/12/2026
Permit issued — Plumbing
B01326508-S1-PL
02/10/2026
Objection resolved — Addressed
02/06/2026
Permit issued — General Construction
B01326508-I1-GC
02/03/2026
Objection resolved — Addressed
02/02/2026
Objection raised — Cost
02/02/2026
Objection resolved — Addressed
01/14/2026
Objection resolved — Addressed
01/14/2026
Objection resolved — Addressed
01/14/2026
Objection resolved — Addressed
01/14/2026
Objection resolved — Addressed
01/14/2026
Objection resolved — Addressed
01/05/2026
Objection raised — Fire_Protection
12/23/2025
Objection raised — Scope
12/23/2025
Objection raised — Scope
12/23/2025
Objection raised — Scope
12/23/2025
Objection raised — Zoning
12/23/2025
Objection raised — Scope
12/23/2025
Objection raised — Zoning
12/18/2025
Filed — Alteration CO
CHANGE IN USE FROM A THREE FAMILY RESIDENCE TO A SINGLE FAMILY RESIDENCE. NO CHANGE IN FLOOR AREA OR EGRESS.
B01326508-S1
12/17/2025
Filed — Alteration CO
CHANGE IN USE FROM A THREE FAMILY RESIDENCE TO A SINGLE FAMILY RESIDENCE. NO CHANGE IN FLOOR AREA OR EGRESS.
B01326508-S3
12/16/2025
Special inspection requirement — Sprinkler Systems
William Ryan
12/11/2025
Filed — Alteration CO
CHANGE IN USE FROM A THREE FAMILY RESIDENCE TO A SINGLE FAMILY RESIDENCE. NO CHANGE IN FLOOR AREA OR EGRESS.
B01326508-I1
07/25/2025
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
03/10/2025
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionSigned-offTERRANOVA CONTRACTING COR07/06/2026
DOB NOWGeneral ConstructionPermit IssuedTERRANOVA CONTRACTING COR05/27/2026
DOB NOWSprinklersPermit IssuedANTHONY CAIAZZO03/02/2026
DOB NOWPlumbingPermit IssuedLIQUID PLBG & HTNG SCS IN02/12/2026
DOB NOWGeneral ConstructionPermit IssuedTERRANOVA CONTRACTING COR02/06/2026
BISPLISSUEDATTACK PLUMBING INC.03/07/2006
BIS—ISSUEDN/A07/01/2003
1 project · most recent 12/18/2025
FiledStatusContractorScope
12/18/2025Permit IssuedJ. CAIAZZO PLBG & HTG COR43 heads
1 project · most recent 12/18/2025
Gas Water/Sanitary
FiledStatusContractorScope
12/18/2025Permit IssuedLIQUID PLBG & HTNG SCS INGas, Water/Sanitary
1 project · most recent 06/05/2025
General Wiring
FiledStatusContractorScope
06/05/2025Permit IssuedEQUAL ELECTRICAL CONT INCGeneral Wiring
▾Field Inspections (DOB CAP) — 4
DateTypeResultReport
03/06/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
02/17/2026Fail-Final PL - Up to 3 Requested FloorsFailView ↗
07/25/2025Pass-Final PL - Up to 3 Requested FloorsPassView ↗
03/10/2025Pass-Final PL - Up to 3 Requested FloorsPassView ↗
▾Special Inspection Requirements (DOB NOW) — 7
DateRequirementInspectorRole
06/18/2026Fenestration areasWilliam Ryanenergy_progress
06/17/2026Concrete - Cast-In-PlaceWilliam Ryanspecial
06/17/2026MasonryWilliam Ryanspecial
06/17/2026FinalWilliam Ryanprogress
06/17/2026Fenestration and door U-factor and product ratingsWilliam Ryanenergy_progress
06/17/2026Structural Stability – Alterations of existing buildingsWilliam Ryanspecial
12/16/2025Sprinkler SystemsWilliam Ryanspecial
▾Documents — 24 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/19/2026B01326508-I1Request digital key ↗
08/19/2026B01326508-S1Request digital key ↗
08/19/2026B01326508-S3Request digital key ↗
Showing 3 of 4 on file for this type
▸Applications & Permits3
▸DOB NOWLPC Approval/Permit3
08/16/2026B01418349-I1Open ↗
08/13/2026B01326508-S1Open ↗
08/13/2026B01326508-I1Open ↗
▸Seals & Professional Certifications11
▸DOB NOWSpecial Inspector Seal & Signature4
09/23/2026B01326508-S3Open ↗
08/25/2026B01418349-I1Open ↗
08/25/2026B01418349-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/19/2026B01326508-I1Open ↗
08/19/2026B01326508-S3Open ↗
08/19/2026B01326508-S1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature3
08/25/2026B01418349-I1Open ↗
08/25/2026B01418349-I1Open ↗
08/25/2026B01418349-I1Open ↗
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/13/2026B01326508-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/19/2026B01326508-S3Open ↗
08/19/2026B01326508-S1Open ↗
08/19/2026B01326508-I1Open ↗
Showing 3 of 4 on file for this type
▸Other Documents1
▸DOB NOWProperty Ownership Certification1
08/19/2026B01326508-I1Open ↗