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Two family converted from one family
398 WILLOUGHBY AVENUE
BROOKLYN · BIN 3048996
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1901Year Built
2Stories
B3Building Class
R6BZoning
1,734 sfGross Floor Area
2Units
0 Open ViolationsFDNY Report ↗
Two family converted from one family · 1,500 sf lot · 1.16 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbingFire ProtectionCivil
Roof4p · 1 filing · 19 docs
Bulkhead3p · 1 filing · 19 docs
Floor 44p · 1 filing · 19 docs
Floor 36p · 1 filing · 19 docs
Floor 24p · 1 filing · 19 docs
Floor 14p · 1 filing · 19 docs
Cellar9p · 1 filing · 19 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
01/23/2025$2.0M—MEISTER BROWNSTONE LLC → Private party$1,182/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
KCE CONSULTING ENGINEERING PLLC306/18/2026
ADVANCED ENGINEERING & INSPECT. PLL304/13/2026
YOEL ROZENBERG101/15/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BAC Developers Group103/21/2026
Building Lifecycle
All (99)Filed (7)Violation (1)Objection (65)Special Inspection (26)
09/03/2026
Objection resolved — Resolved
09/03/2026
Objection resolved — Resolved
09/03/2026
Objection resolved — Resolved
09/03/2026
Objection resolved — Resolved
07/10/2026
Special inspection requirement — Energy Code Compliance Inspections
06/24/2026
Objection raised — Scope
06/18/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
MECHANICAL SYSTEM FILED IN CONJUNCTION WITH ALT CO JOB NUMBER B01342994-I1.
B01342994-S7
06/17/2026
Special inspection requirement — Structural Steel - Welding
06/17/2026
Special inspection requirement — Structural Steel - High Strength Bolting
06/17/2026
Special inspection requirement — Structural Steel - Details
06/17/2026
Special inspection requirement — Concrete - Cast-In-Place
06/17/2026
Special inspection requirement — Post-installed anchors in masonry
06/17/2026
Special inspection requirement — Structural Cold-Formed Steel
06/08/2026
Objection resolved — Addressed
06/08/2026
Objection resolved — Addressed
06/05/2026
Objection raised — Admin
06/05/2026
Objection raised — Scope
06/05/2026
Objection raised — Inspections
05/28/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
MECHANICAL SYSTEM FILED IN CONJUNCTION WITH ALT CO JOB NUMBER B01342994-I1.
B01342994-S4
05/19/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
MECHANICAL SYSTEM FILED IN CONJUNCTION WITH ALT CO JOB NUMBER B01342994-I1.
B01342994-S5
05/18/2026
Objection resolved — Resolved
05/18/2026
Objection resolved — Resolved
05/18/2026
Objection resolved — Resolved
05/15/2026
Special inspection requirement — Post-installed Anchors
05/15/2026
Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing
05/15/2026
Special inspection requirement — Subgrade Inspections
04/30/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
04/29/2026
Objection raised — Scope
04/23/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
04/23/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
04/22/2026
Objection resolved — Resolved
04/22/2026
Objection resolved — Resolved
04/22/2026
Objection resolved — Resolved
04/22/2026
Objection resolved — Resolved
04/22/2026
Objection resolved — Resolved
04/22/2026
Objection resolved — Resolved
04/21/2026
Objection raised — Scope
04/21/2026
Objection raised — Scope
04/16/2026
Objection raised — Admin
04/16/2026
Objection raised — Scope
04/16/2026
Objection raised — Admin
04/16/2026
Objection raised — Admin
04/13/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
MECHANICAL SYSTEM FILED IN CONJUNCTION WITH ALT CO JOB NUMBER B01342994-I1.
B01342994-S2
04/13/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
MECHANICAL SYSTEM FILED IN CONJUNCTION WITH ALT CO JOB NUMBER B01342994-I1.
B01342994-S1
04/13/2026
Special inspection requirement — Final
04/10/2026
Special inspection requirement — Maintenance information
04/10/2026
Special inspection requirement — Duct leakage testing, insulation and design
04/10/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
04/10/2026
Special inspection requirement — Heating Systems
04/09/2026
Objection raised — Scope
03/31/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
MECHANICAL SYSTEM FILED IN CONJUNCTION WITH ALT CO JOB NUMBER B01342994-I1.
B01342994-S3
03/31/2026
Special inspection requirement — HVAC-R and service water heating system controls
03/31/2026
Special inspection requirement — Shutoff dampers
03/31/2026
Special inspection requirement — HVAC-R and service water heating equipment
03/31/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
03/31/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
03/27/2026
Special inspection requirement — Final
03/27/2026
Special inspection requirement — Mechanical Systems
03/27/2026
Special inspection requirement — Sprinkler Systems
03/18/2026
Objection resolved — Resolved
Latest 60 of 99 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
BISMHISSUEDGJUSHI CONSTRUCTION CO LL09/13/2011
BISOTISSUEDGJUSHI CONSTRUCTION CO LL01/24/2011
BISPLISSUEDPREMIER FLOW PLBG AND HTG01/04/2011
BISOTISSUEDGJUSHI CONSTRUCTION CO LL12/29/2010
1 project · most recent 06/18/2026
Air Conditioning Systems Heating Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
06/18/2026——Air Conditioning Systems, Heating Systems, Ventilation Systems
Cooling
Mitsubishi Electric MXZ-SM48NL 48,000 BTU · Heat Pump Outdoor ×2
MXZ-SM36NL 36,000 BTU · Heat Pump Outdoor ×1
MXZ-SM60NL 60,000 BTU · Heat Pump Outdoor ×1
PUZ-AK12NL 120,000 BTU · Heat Pump Outdoor ×1
PUZ-AK36NL 36,000 BTU · Heat Pump Outdoor ×1
Heating
Mitsubishi Electric MXZ-SM48NL 50,000 BTU · Heat Pump Outdoor ×2
MXZ-SM36NL 41,000 BTU · Heat Pump Outdoor ×1
MXZ-SM60NL 66,000 BTU · Heat Pump Outdoor ×1
PUZ-AK12NL 18,000 BTU · Heat Pump Outdoor ×1
PUZ-AK36NL 40,000 BTU · Heat Pump Outdoor ×1
Ventilation
Nutone AEN110 50 CFM · Exhaust Fan ×4
Markel E3323TD-RP 175 CFM · Unit Heater ×1
1 project · most recent 06/18/2026
Sprinkler System
FiledStatusContractorScope
06/18/2026——Sprinkler System
1 project · most recent 06/18/2026
Storm Water/Sanitary
FiledStatusContractorScope
06/18/2026——Storm, Water/Sanitary
1 project · most recent 06/18/2026
FiledStatusContractorScope
06/18/2026——3 scope_items
▾Special Inspection Requirements (DOB NOW) — 26
DateRequirementInspectorRole
07/10/2026Energy Code Compliance Inspections—progress
06/17/2026Structural Steel - Welding—special
06/17/2026Structural Steel - High Strength Bolting—special
06/17/2026Structural Steel - Details—special
06/17/2026Concrete - Cast-In-Place—special
06/17/2026Post-installed anchors in masonry—special
06/17/2026Structural Cold-Formed Steel—special
05/15/2026Post-installed Anchors—special
05/15/2026Excavations - Sheeting, Shoring, and Bracing—special
05/15/2026Subgrade Inspections—special
04/30/2026Structural Stability – Alterations of existing buildings—special
04/23/2026Structural Stability – Alterations of existing buildings—special
04/23/2026Structural Stability – Alterations of existing buildings—special
04/13/2026Final—progress
04/10/2026Maintenance information—energy_progress
04/10/2026Duct leakage testing, insulation and design—energy_progress
04/10/2026Fire-Resistant Penetrations and Joints—special
04/10/2026Heating Systems—special
03/31/2026HVAC-R and service water heating system controls—energy_progress
03/31/2026Shutoff dampers—energy_progress
03/31/2026HVAC-R and service water heating equipment—energy_progress
03/31/2026Fire-Resistant Penetrations and Joints—special
03/31/2026HVAC-R and service water piping design and insulation—energy_progress
03/27/2026Final—progress
03/27/2026Mechanical Systems—special
Latest 25 of 26.
▾Documents — 47 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch7
08/16/2026B01342994-I1Request digital key ↗
08/16/2026B01342994-S2Request digital key ↗
08/16/2026B01342994-S5Request digital key ↗
Showing 3 of 7 on file for this type
▸Applications & Permits6
▸BISWORK PERMIT APPLICATION4
09/21/2011320236623Open ↗
01/26/2011320236623Open ↗
01/06/2011320236623Open ↗
Showing 3 of 4 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION2
03/15/2011320236623Open ↗
11/16/2010320236623Open ↗
▸Zoning, Tax Lot & Property Records4
▸DOB NOWZD1: DOB Zoning Diagram2
08/16/2026B01342994-I1Open ↗
08/13/2026B01342994-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/16/2026B01342994-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/13/2026B01342994-I1Open ↗
▸Seals & Professional Certifications10
▸DOB NOWDPL-1: Design Professional Seal & Signature7
08/16/2026B01342994-S2Open ↗
08/16/2026B01342994-S7Open ↗
08/16/2026B01342994-S5Open ↗
Showing 3 of 7 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION3
12/21/2011320236623Open ↗
01/05/2011320236623Open ↗
11/16/2010320236623Open ↗
▸Trade Schedules & Equipment5
▸BISSELF-CERT PLUMBING NOTICE3
06/15/2011320236623Open ↗
05/24/2011320236623Open ↗
02/15/2011320236623Open ↗
▸BISSCHEDULE B - PLUMBING2
03/15/2011320236623Open ↗
11/16/2010320236623Open ↗
▸Safety & Tenant Protection1
▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1
11/16/2010320236623Open ↗
▸Environmental & Asbestos1
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'1
11/16/2010320236623Open ↗
▸Energy Compliance1
▸BISTECHNICAL REPORT: ENERGY1
12/21/2011320236623Open ↗
▸Inspections & Test Reports1
▸DOB NOWSOIL REPORT1
08/15/2026B01342994-S4Open ↗
▸Approvals, Objections & Sign-offs4
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2
12/21/2011320236623Open ↗
12/21/2011320236623Open ↗
▸BISThird Party Electrical Signoff Compliance Report1
12/21/2011320236623Open ↗
▸BISADMINISTRATIVE OBJECTIONS1
11/16/2010320236623Open ↗
▸Cost, Insurance & Ownership2
▸BISCOST AFFIDAVIT2
12/21/2011320236623Open ↗
11/16/2010320236623Open ↗
▸Filing & Intake Forms2
▸BISEFILING COVER SHEET1
11/16/2010320236623Open ↗
▸BISADDITIONAL INFORMATION1
03/15/2011320236623Open ↗
▸Other Documents3
▸DOB NOWSite Survey: Initial1
08/13/2026B01342994-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026B01342994-I1Open ↗
▸DOB NOWProperty Ownership Certification1
08/16/2026B01342994-I1Open ↗