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Two family converted from one family
249 JEFFERSON AVENUE
BROOKLYN · BIN 3051944
💬 Discuss this project
1886Year Built
3Stories
B3Building Class
R6BZoning
4,000 sfGross Floor Area
2Units
FDNY Report ↗
Two family converted from one family · 2,000 sf lot · 2 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbing
Roof8p · 3 filings · 17 docs
Bulkhead1p · 1 filing · 5 docs
Floor 32p · 2 filings · 10 docs
Floor 22p · 2 filings · 10 docs
Floor 13p · 1 filing · 7 docs
Cellar4p · 2 filings · 12 docs
Basement1p · 1 filing · 5 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
08/31/2023$2.1M—Private party → Private party$538/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
JOSEPH K. BLUM CO. LLP102/05/2026
ANZ CONSULTING ENGINEERING, PLLC202/02/2026
MANIFOLD ARCHITECTURE STUDIO PLLC102/02/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
K M DOB CONSULTING803/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
BHK ENGINEERING, D.P.C.9589102/05/2026
ANZ CONSULTING ENGINEERIN3946202/02/2026
Building Lifecycle
All (32)Filed (4)Objection (19)Special Inspection (9)
09/09/2026
Objection resolved — Resolved
08/31/2026
Objection resolved — Resolved
08/26/2026
Objection raised — Other
08/26/2026
Objection raised — Admin
04/02/2026
Objection resolved — Resolved
03/24/2026
Objection raised — Cost
03/24/2026
Objection resolved — Resolved
03/24/2026
Objection resolved — Resolved
03/16/2026
Objection resolved — Addressed
03/16/2026
Objection resolved — Addressed
03/16/2026
Objection resolved — Addressed
03/02/2026
Objection raised — Admin
03/02/2026
Objection raised — Admin
03/02/2026
Objection raised — Scope
03/02/2026
Objection raised — Zoning
02/19/2026
Objection raised — Admin
02/13/2026
Objection raised — Admin
02/10/2026
Objection raised — Admin
02/05/2026
Filed — Alteration
B01347721-I1
02/05/2026
Objection raised — Cost
02/02/2026
Filed — Alteration
B01334259-I1
02/02/2026
Filed — Alteration
INSTALLATION OF BULKHEAD, ROOF TERRACE, AND NEW STAIRS. AND REMOVAL AND INSTALLATION OF SKYLIGHTS ON THE ROOF. STRUCTURAL WORK WILL BE FILED UNDER A SEPARATE APPLICATION. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01333453-I1
02/02/2026
Filed — Alteration
B01334285-I1
01/16/2026
Special inspection requirement — Final
William DeGraaff
01/16/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
William DeGraaff
01/16/2026
Special inspection requirement — Masonry
William DeGraaff
01/16/2026
Special inspection requirement — Post-installed Anchors
William DeGraaff
01/16/2026
Special inspection requirement — Structural Cold-Formed Steel
William DeGraaff
01/16/2026
Special inspection requirement — Structural Steel - Details
William DeGraaff
01/16/2026
Special inspection requirement — Structural Steel - High Strength Bolting
William DeGraaff
01/16/2026
Special inspection requirement — Structural Steel - Welding
William DeGraaff
12/15/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
ALBERT ZIRINO
Nothing on file for this building.
1 project · most recent 02/02/2026
FiledStatusContractorScope
02/02/2026——1 scope_items
▾Special Inspection Requirements (DOB NOW) — 9
DateRequirementInspectorRole
01/16/2026FinalWilliam DeGraaffprogress
01/16/2026Structural Stability – Alterations of existing buildingsWilliam DeGraaffspecial
01/16/2026MasonryWilliam DeGraaffspecial
01/16/2026Post-installed AnchorsWilliam DeGraaffspecial
01/16/2026Structural Cold-Formed SteelWilliam DeGraaffspecial
01/16/2026Structural Steel - DetailsWilliam DeGraaffspecial
01/16/2026Structural Steel - High Strength BoltingWilliam DeGraaffspecial
01/16/2026Structural Steel - WeldingWilliam DeGraaffspecial
12/15/2025Fire-Resistant Penetrations and JointsALBERT ZIRINOspecial
▾Documents — 21 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/18/2026B01334285-I1Request digital key ↗
08/18/2026B01334259-I1Request digital key ↗
08/18/2026B01333453-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Zoning, Tax Lot & Property Records1
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026B01333453-I1Open ↗
▸Seals & Professional Certifications7
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/18/2026B01334285-I1Open ↗
08/18/2026B01334259-I1Open ↗
08/18/2026B01333453-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature2
08/26/2026B01334285-I1Open ↗
08/23/2026B01347721-I1Open ↗
▸DOB NOWProgress Inspector Seal & Signature1
08/23/2026B01347721-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/18/2026B01334285-I1Open ↗
08/18/2026B01334259-I1Open ↗
08/18/2026B01333453-I1Open ↗
Showing 3 of 4 on file for this type
▸Other Documents5
▸DOB NOWProof of Historic Building2
08/13/2026B01334259-I1Open ↗
08/13/2026B01334285-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026B01333453-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026B01333453-I1Open ↗
▸DOB NOWPlot Diagram1
08/13/2026B01333453-I1Open ↗