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Two family converted from one family
851 JEFFERSON AVENUE
BROOKLYN · BIN 3045647
💬 Discuss this project
1899Year Built
3Stories
B3Building Class
R6BZoning
3,394 sfGross Floor Area
2Units
Rent Stabilized3 Open Violations ▸
Two family converted from one family · 1,850 sf lot · 1.83 FAR built · Flood zone X
Locations of Work
Architecture
Roof2p · 2 filings · 20 docs
Cellar1p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BRICKSTONE GROUP907/08/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
02/15/2023$2.6M—JON JON BRICKS LLC → Private party$765/sf building
01/04/2022$1.2M—Private party → JON JON BRICKS LLC$354/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
DOYUN KIM; RA304/07/2022
CHUN ENGINEERING CONSULTANT PLLC101/22/2021
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
NYC BUILDING SOLUTIONS403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NYC BUILDING SOLUTIONS COGeneral Contractor903/21/2026
PLBG P & H INCPlumbing707/08/2026
ZAHIR SAKOORElectrical203/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
DOYUN KIM; RA7415404/07/2022
Building Lifecycle
All (48)Filed (4)Permit Issued (4)Signed Off (2)Violation (3)Inspection (5)Special Inspection (30)
11/24/2025
Violation issued (HPD, open)
I
12/04/2024
Violation issued (HPD, open)
I
11/28/2023
Violation issued (HPD, open)
I
11/21/2022
Signed off — Alteration
FILING ALT 2 APPLICATION TO PROPOSE RE LAMINATE EXIST'G WALLS, NEW GYP BOARD, UPDATE WINDOWS, REAR DECK, AND FINISHES; TO EXISTING 2 FAMILY DWELLING AS PER PLANS . NO CHANGE IN USE EGRESS,BULK, OR OCCUPANCY. PL DOB NOW B00449538
B00449591-I1
11/17/2022
Signed off — Alteration
HEREWITH FILING TO INSTTALL PLUMBING SYSTEM AS PER PLAN. IN CONJUNCTION WITH DOB#B00449591.
B00449538-I1
08/15/2022
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
08/12/2022
Inspection — Pass-Final PL - Up to 9 Requested Floors
Pass
View inspection ↗
04/19/2022
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
04/19/2022
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
04/19/2022
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
04/07/2022
Filed — Alteration
HEREWITH FILING TO INSTTALL PLUMBING SYSTEM AS PER PLAN. IN CONJUNCTION WITH DOB#B00449591.
B00449538-P1
04/07/2022
Special inspection requirement — Structural Stability – Alterations of existing buildings
DOYUN KIM
04/07/2022
Special inspection requirement — Concrete - Cast-In-Place
DOYUN KIM
04/07/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
DOYUN KIM
04/07/2022
Special inspection requirement — Final
DOYUN KIM
04/07/2022
Special inspection requirement — Air barrier - visual inspection
DOYUN KIM
04/07/2022
Special inspection requirement — Interior lighting power
DOYUN KIM
04/07/2022
Special inspection requirement — Maintenance information
DOYUN KIM
04/07/2022
Special inspection requirement — Fenestration and door U-factor and product ratings
DOYUN KIM
04/07/2022
Special inspection requirement — Lighting controls
DOYUN KIM
04/07/2022
Special inspection requirement — Insulation placement and R values
DOYUN KIM
04/07/2022
Special inspection requirement — Fenestration air leakage
DOYUN KIM
04/07/2022
Special inspection requirement — Permanent certificate
DOYUN KIM
04/07/2022
Special inspection requirement — Exterior lighting power
DOYUN KIM
04/07/2022
Special inspection requirement — Fenestration areas
DOYUN KIM
04/07/2022
Special inspection requirement — Lighting in dwelling units
DOYUN KIM
04/06/2022
Filed — Alteration
FILING ALT 2 APPLICATION TO PROPOSE RE LAMINATE EXIST'G WALLS, NEW GYP BOARD, UPDATE WINDOWS, REAR DECK, AND FINISHES; TO EXISTING 2 FAMILY DWELLING AS PER PLANS . NO CHANGE IN USE EGRESS,BULK, OR OCCUPANCY. PL DOB NOW B00449538
B00449591-P1
03/29/2022
Special inspection requirement — Concrete - Cast-In-Place
DOYUN KIM
03/29/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
DOYUN KIM
03/29/2022
Special inspection requirement — Structural Stability – Alterations of existing buildings
DOYUN KIM
03/29/2022
Special inspection requirement — Final
DOYUN KIM
03/29/2022
Special inspection requirement — Fenestration air leakage
DOYUN KIM
03/29/2022
Special inspection requirement — Interior lighting power
DOYUN KIM
03/29/2022
Special inspection requirement — Fenestration areas
DOYUN KIM
03/29/2022
Special inspection requirement — Fenestration and door U-factor and product ratings
DOYUN KIM
03/29/2022
Special inspection requirement — Air barrier - visual inspection
DOYUN KIM
03/29/2022
Special inspection requirement — Lighting controls
DOYUN KIM
03/29/2022
Special inspection requirement — Insulation placement and R values
DOYUN KIM
03/29/2022
Special inspection requirement — Lighting in dwelling units
DOYUN KIM
03/29/2022
Special inspection requirement — Exterior lighting power
DOYUN KIM
03/29/2022
Special inspection requirement — Maintenance information
DOYUN KIM
03/29/2022
Special inspection requirement — Permanent certificate
DOYUN KIM
03/02/2022
Permit issued — Plumbing
B00449538-I1-PL
02/23/2022
Permit issued — General Construction
B00449591-I1-GC
02/23/2021
Permit issued — General Construction
B00449591-I1-GC
01/22/2021
Filed — Alteration
HEREWITH FILING TO INSTTALL PLUMBING SYSTEM AS PER PLAN. IN CONJUNCTION WITH DOB#B00449591.
B00449538-I1
01/21/2021
Permit issued — General Construction
B00449591-I1-GC
01/11/2021
Filed — Alteration
FILING ALT 2 APPLICATION TO PROPOSE RE LAMINATE EXIST'G WALLS, NEW GYP BOARD, UPDATE WINDOWS, REAR DECK, AND FINISHES; TO EXISTING 2 FAMILY DWELLING AS PER PLANS . NO CHANGE IN USE EGRESS,BULK, OR OCCUPANCY. PL DOB NOW B00449538
B00449591-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offPLBG P & H INC03/02/2022
DOB NOWGeneral ConstructionSigned-offNYC BUILDING SOLUTIONS CO02/23/2022
DOB NOWGeneral ConstructionSigned-offNYC BUILDING SOLUTIONS CO02/23/2021
DOB NOWGeneral ConstructionSigned-offNYC BUILDING SOLUTIONS CO01/21/2021
2 projects · most recent 03/20/2022
General Wiring
FiledStatusContractorScope
03/20/2022CompleteSOLID STATE ELECTRIC LLC—
03/17/2022CompleteSOLID STATE ELECTRIC LLCGeneral Wiring
▾Field Inspections (DOB CAP) — 5
DateTypeResultReport
08/15/2022Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
08/12/2022Pass-Final PL - Up to 9 Requested FloorsPassView ↗
04/19/2022Certified Gas-Gas-Piping-RoughingCertifiedView ↗
04/19/2022Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
04/19/2022Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 30
DateRequirementInspectorRole
04/07/2022Structural Stability – Alterations of existing buildingsDOYUN KIMspecial
04/07/2022Concrete - Cast-In-PlaceDOYUN KIMspecial
04/07/2022Fire-Resistant Penetrations and JointsDOYUN KIMspecial
04/07/2022FinalDOYUN KIMprogress
04/07/2022Air barrier - visual inspectionDOYUN KIMenergy_progress
04/07/2022Interior lighting powerDOYUN KIMenergy_progress
04/07/2022Maintenance informationDOYUN KIMenergy_progress
04/07/2022Fenestration and door U-factor and product ratingsDOYUN KIMenergy_progress
04/07/2022Lighting controlsDOYUN KIMenergy_progress
04/07/2022Insulation placement and R valuesDOYUN KIMenergy_progress
04/07/2022Fenestration air leakageDOYUN KIMenergy_progress
04/07/2022Permanent certificateDOYUN KIMenergy_progress
04/07/2022Exterior lighting powerDOYUN KIMenergy_progress
04/07/2022Fenestration areasDOYUN KIMenergy_progress
04/07/2022Lighting in dwelling unitsDOYUN KIMenergy_progress
03/29/2022Concrete - Cast-In-PlaceDOYUN KIMspecial
03/29/2022Fire-Resistant Penetrations and JointsDOYUN KIMspecial
03/29/2022Structural Stability – Alterations of existing buildingsDOYUN KIMspecial
03/29/2022FinalDOYUN KIMprogress
03/29/2022Fenestration air leakageDOYUN KIMenergy_progress
03/29/2022Interior lighting powerDOYUN KIMenergy_progress
03/29/2022Fenestration areasDOYUN KIMenergy_progress
03/29/2022Fenestration and door U-factor and product ratingsDOYUN KIMenergy_progress
03/29/2022Air barrier - visual inspectionDOYUN KIMenergy_progress
03/29/2022Lighting controlsDOYUN KIMenergy_progress
Latest 25 of 30.
▾Documents — 44 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch - Plumbing2
09/01/2026B00449538-P1Request digital key ↗
09/01/2026B00449538-I1Request digital key ↗
▸DOB NOWPlans/Sketch - General Construction2
09/01/2026B00449591-I1Request digital key ↗
09/01/2026B00449591-P1Request digital key ↗
▸Seals & Professional Certifications34
▸DOB NOWProgress Inspector Seal & Signature24
08/26/2026B00449591-P1Open ↗
08/26/2026B00449591-P1Open ↗
08/26/2026B00449591-P1Open ↗
Showing 3 of 24 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature6
08/26/2026B00449591-P1Open ↗
08/26/2026B00449591-P1Open ↗
08/26/2026B00449591-P1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
09/01/2026B00449591-P1Open ↗
09/01/2026B00449591-I1Open ↗
09/01/2026B00449538-I1Open ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
09/01/2026B00449591-P1Open ↗
09/01/2026B00449591-I1Open ↗
09/01/2026B00449538-I1Open ↗
Showing 3 of 4 on file for this type
▸Energy Compliance2
▸DOB NOWEN2: As Built Energy Analysis.2
08/13/2026B00449538-I1Open ↗
08/13/2026B00449591-I1Open ↗