← Back
Three families
820 JEFFERSON AVENUE
BROOKLYN · BIN 3045939
💬 Discuss this project
1899Year Built
2Stories
C0Building Class
R6BZoning
3,160 sfGross Floor Area
3Units
Three families · 2,050 sf lot · 1.54 FAR built · Flood zone X
Locations of Work
Mechanical
Roof1p · 1 filing · 14 docs
Cellar1p · 1 filing · 14 docs
1 job · most recent 02/19/2026
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
02/19/2026——Heating and Air Conditioning Systems, Ventilation Systems
Heat / Cool
Mitsubishi Electric MXZ-SM48-NAM-U1 4 tons · Condensing Unit ×2
PEFY-P18-NMHU-E2 18,000 BTU · Vrf Indoor ×1
PEFY-P24-NMHU-E2 24,000 BTU · Vrf Indoor ×1
PVFY-P18-NMHU-E2 18,000 BTU · Vrf Indoor ×1
PVFY-P24-NMHU-E2 24,000 BTU · Vrf Indoor ×1
Ventilation
Panasonic FV-08VQ5 80 CFM · Exhaust Fan ×5
FV-15VQ5 150 CFM · Exhaust Fan ×1
2 jobs · most recent 09/07/2025
General Wiring
FiledStatusContractorScope
09/07/2025Permit IssuedACCURATE ELEC'L CORP.General Wiring
07/30/2021CompletePW & SONS ELECTRICAL CORPGeneral Wiring
Building Lifecycle
All (22)Filed (4)Objection (18)
06/22/2026
Objection resolved — Addressed
04/10/2026
Objection resolved — Addressed
04/10/2026
Objection resolved — Addressed
03/30/2026
Objection resolved — Addressed
03/30/2026
Objection resolved — Addressed
03/30/2026
Objection resolved — Addressed
03/30/2026
Objection resolved — Resolved
03/05/2026
Objection raised — Scope
03/05/2026
Objection raised — Structural
03/05/2026
Objection raised — Plumbing
03/05/2026
Objection raised — Energy
03/02/2026
Objection raised — Admin
03/02/2026
Objection raised — Admin
03/02/2026
Objection raised — Structural
02/27/2026
Objection raised — Scope
02/27/2026
Objection raised — Fire_Protection
02/27/2026
Objection raised — Energy
02/26/2026
Objection raised — Scope
02/19/2026
Filed — Alteration
GENERAL CONSTRUCTION WORK CONSISTING OF INTERIOR PARTITIONS AND DOORS, LIGHTING, AND EXTERIOR WINDOW AND DOOR REPLACEMENT. NO CHANGE TO USE,OCCUPANCY OR EGRESS
B01292650-I1
02/19/2026
Filed — Alteration
GENERAL CONSTRUCTION WORK CONSISTING OF INTERIOR PARTITIONS AND DOORS, LIGHTING, AND EXTERIOR WINDOW AND DOOR REPLACEMENT. NO CHANGE TO USE,OCCUPANCY OR EGRESS
B01292650-S1
02/19/2026
Filed — Alteration
GENERAL CONSTRUCTION WORK CONSISTING OF INTERIOR PARTITIONS AND DOORS, LIGHTING, AND EXTERIOR WINDOW AND DOOR REPLACEMENT. NO CHANGE TO USE,OCCUPANCY OR EGRESS
B01292650-S3
02/19/2026
Filed — Alteration
GENERAL CONSTRUCTION WORK CONSISTING OF INTERIOR PARTITIONS AND DOORS, LIGHTING, AND EXTERIOR WINDOW AND DOOR REPLACEMENT. NO CHANGE TO USE,OCCUPANCY OR EGRESS
B01292650-S2
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
11/08/2021$2.0M—— → —$649/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CELIN MUNOZ CONSULTING ENGINEER, PC302/19/2026
PIRO STUDIO LLC102/19/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
MUNICIPAL BUILDING CONSULTANTS403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
PW & SONS ELECTRICAL CORPElectrical103/22/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
GIANTS IN THE DIRT9101102/19/2026
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 23
DateRequirementInspectorRole
01/08/2026HVAC-R and service water heating system controls—energy_progress
01/08/2026HVAC-R and service water piping design and insulation—energy_progress
01/08/2026HVAC-R and service water heating equipment—energy_progress
01/08/2026Maintenance information—energy_progress
01/08/2026Permanent certificate—energy_progress
12/23/2025Fire-Resistant Penetrations and Joints—special
10/30/2025HVAC-R and service water heating equipment—energy_progress
10/30/2025HVAC-R and service water piping design and insulation—energy_progress
10/30/2025HVAC-R and service water heating system controls—energy_progress
10/14/2025Lighting in dwelling units—energy_progress
10/14/2025Lighting controls—energy_progress
10/14/2025Fenestration areas—energy_progress
10/14/2025Fire-Resistant Penetrations and JointsELIZABETH HARDWICKspecial
10/14/2025Energy Code Compliance InspectionsELIZABETH HARDWICKprogress
10/14/2025Fire-Resistance Rated ConstructionELIZABETH HARDWICKprogress
10/14/2025Air barrier - visual inspection—energy_progress
10/14/2025Insulation placement and R values—energy_progress
10/14/2025Fenestration and door U-factor and product ratings—energy_progress
10/14/2025Fenestration air leakage—energy_progress
10/14/2025Interior lighting power—energy_progress
09/29/2025Final—progress
09/29/2025Mechanical Systems—special
09/24/2025FinalELIZABETH HARDWICKprogress
▾Documents — 14 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/18/2026B01292650-S2Request digital key ↗
08/18/2026B01292650-S1Request digital key ↗
08/18/2026B01292650-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Zoning, Tax Lot & Property Records1
▸DOB NOWRestrictive Declaration/Easement 11
08/18/2026B01292650-I1Open ↗
▸Seals & Professional Certifications5
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/13/2026B01292650-I1Open ↗
08/13/2026B01292650-S3Open ↗
08/13/2026B01292650-S2Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature1
09/23/2026B01292650-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/13/2026B01292650-I1Open ↗
08/13/2026B01292650-S2Open ↗
08/13/2026B01292650-S3Open ↗
Showing 3 of 4 on file for this type