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Miscellaneous two family
227 WYCKOFF STREET
BROOKLYN · Carroll Gardens-Cobble Hill-Gowanus-Red Hook · BIN 3005947
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1872Year Built
2Stories
B9Building Class
R6BZoning
1,632 sfGross Floor Area
2Units
FDNY Report ↗
Miscellaneous two family · 1,667 sf lot · 0.98 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbing
Permit Issued — active, not yet Signed-off
RoofUnder Construction4p · 1 filing · 20 docs
Floor 2Under Construction4p · 2 filings · 20 docs
Floor 1Under Construction3p · 2 filings · 20 docs
CellarUnder Construction5p · 2 filings · 20 docs
BasementUnder Construction4p · 1 filing · 20 docs
Sub-BasementUnder Construction1 filing · 1 doc
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
MNB Developers309/27/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
02/12/2026$1.9M—— → —$1,170/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CQ&J CORPORATION407/09/2026
THOMAS C. TUNG, P.E.104/20/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
PROTON CCM LLCGeneral Contractor104/09/2026
TRI CITY MECHANICAL GROUP CORPPlumbing109/27/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SIMON7555207/09/2026
Building Lifecycle
All (71)Filed (5)Permit Issued (2)Objection (38)Special Inspection (26)
09/04/2026
Permit issued — Plumbing
B01378883-S2-PL
09/01/2026
Objection resolved — Addressed
09/01/2026
Objection resolved — Addressed
07/21/2026
Objection resolved — Addressed
07/21/2026
Objection resolved — Addressed
07/09/2026
Filed — Alteration CO
CONVERT EXISTING 2-STORY WITH BASEMENT, TWO (2) FAMILY INTO ONE (1) FAMILY. OBTAIN NEW C OF O.
B01378883-S3
06/26/2026
Filed — Alteration CO
CONVERT EXISTING 2-STORY WITH BASEMENT, TWO (2) FAMILY INTO ONE (1) FAMILY. OBTAIN NEW C OF O.
B01378883-S2
06/25/2026
Filed — Alteration CO
CONVERT EXISTING 2-STORY WITH BASEMENT, TWO (2) FAMILY INTO ONE (1) FAMILY. OBTAIN NEW C OF O.
B01378883-S1
06/25/2026
Special inspection requirement — Maintenance information
CALVIN TRAN
06/25/2026
Special inspection requirement — Energy Code Compliance Inspections
CALVIN TRAN
06/25/2026
Special inspection requirement — HVAC-R and service water heating equipment
CALVIN TRAN
06/25/2026
Special inspection requirement — Shutoff dampers
CALVIN TRAN
06/25/2026
Special inspection requirement — Duct leakage testing, insulation and design
CALVIN TRAN
06/25/2026
Special inspection requirement — HVAC-R and service water heating system controls
CALVIN TRAN
06/25/2026
Special inspection requirement — Final
CALVIN TRAN
06/25/2026
Special inspection requirement — Mechanical Systems
SIMON JIANG
06/25/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
CALVIN TRAN
06/23/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Objection resolved — Addressed
05/14/2026
Special inspection requirement — Demolition
04/30/2026
Objection raised — Admin
04/30/2026
Objection raised — Other
04/30/2026
Objection raised — Structural
04/30/2026
Objection raised — Admin
04/30/2026
Objection raised — Scope
04/30/2026
Objection raised — Structural
04/30/2026
Objection raised — Zoning
04/30/2026
Objection raised — Other
04/30/2026
Objection raised — Admin
04/30/2026
Objection raised — Scope
04/30/2026
Objection raised — Other
04/30/2026
Objection raised — Scope
04/30/2026
Objection raised — Other
04/30/2026
Objection raised — Fire_Protection
04/30/2026
Objection raised — Structural
04/30/2026
Objection raised — Scope
04/30/2026
Objection raised — Scope
04/30/2026
Objection raised — Fire_Protection
04/30/2026
Objection raised — Fire_Protection
04/20/2026
Filed — Alteration CO
CONVERT EXISTING 2-STORY WITH BASEMENT, TWO (2) FAMILY INTO ONE (1) FAMILY. OBTAIN NEW C OF O.
B01378883-I1
04/20/2026
Special inspection requirement — Metering
04/20/2026
Special inspection requirement — Interior lighting power
04/20/2026
Special inspection requirement — Fenestration air leakage
04/20/2026
Special inspection requirement — Maintenance information
04/20/2026
Special inspection requirement — Fenestration areas
04/20/2026
Special inspection requirement — Air barrier — testing
04/20/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
Latest 60 of 71 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedTRI CITY MECHANICAL GROUP CORP09/04/2026
DOB NOWGeneral ConstructionPermit IssuedPROTON CCM LLC03/30/2026
1 project · most recent 07/09/2026
Heating and Air Conditioning Systems Heating Systems
FiledStatusContractorScopeMake / Model / Capacity
07/09/2026——Heating and Air Conditioning Systems, Heating Systems
Heat / Cool
Mitsubishi Electric SUZ-KA24NA2 24,000 BTU · Condensing Unit ×1
SUZ-KA30NA2 27,000 BTU · Condensing Unit ×1
Heating
Mitsubishi Electric SVZ-KP24NA 23,000 BTU · Fan Coil Indoor ×1
SVZ-KP30NA 29,400 BTU · Fan Coil Indoor ×1
1 project · most recent 07/09/2026
Sprinkler System
FiledStatusContractorScope
07/09/2026——Sprinkler System
1 project · most recent 07/09/2026
Gas Water/Sanitary
FiledStatusContractorScope
07/09/2026Permit IssuedTRI CITY MECHANICAL GROUPGas, Water/Sanitary
1 project · most recent 07/09/2026
Wood
FiledStatusContractorScope
07/09/2026Permit IssuedTRI CITY MECHANICAL GROUPWood
▾Special Inspection Requirements (DOB NOW) — 26
DateRequirementInspectorRole
06/25/2026Maintenance informationCALVIN TRANenergy_progress
06/25/2026Energy Code Compliance InspectionsCALVIN TRANprogress
06/25/2026HVAC-R and service water heating equipmentCALVIN TRANenergy_progress
06/25/2026Shutoff dampersCALVIN TRANenergy_progress
06/25/2026Duct leakage testing, insulation and designCALVIN TRANenergy_progress
06/25/2026HVAC-R and service water heating system controlsCALVIN TRANenergy_progress
06/25/2026FinalCALVIN TRANprogress
06/25/2026Mechanical SystemsSIMON JIANGspecial
06/25/2026HVAC-R and service water piping design and insulationCALVIN TRANenergy_progress
05/14/2026Demolition—special
04/20/2026Metering—energy_progress
04/20/2026Interior lighting power—energy_progress
04/20/2026Fenestration air leakage—energy_progress
04/20/2026Maintenance information—energy_progress
04/20/2026Fenestration areas—energy_progress
04/20/2026Air barrier — testing —energy_progress
04/20/2026Fenestration and door U-factor and product ratings—energy_progress
04/20/2026Insulation placement and R values—energy_progress
04/20/2026Permanent certificate—energy_progress
04/20/2026Air barrier - visual inspection—energy_progress
03/26/2026Fire-Resistance Rated Construction—progress
03/26/2026Energy Code Compliance Inspections—progress
03/26/2026Final—progress
03/26/2026Structural Stability – Alterations of existing buildings—special
03/26/2026Fire-Resistant Penetrations and Joints—special
Latest 25 of 26.
▾Documents — 35 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
09/03/2026B01378883-I1Request digital key ↗
08/17/2026B01378883-I1Request digital key ↗
08/17/2026B01378883-S2Request digital key ↗
Showing 3 of 5 on file for this type
▸Applications & Permits4
▸DOB NOWLPC Approval/Permit4
09/03/2026B01378883-I1Open ↗
08/17/2026B01378883-S2Open ↗
08/17/2026B01378883-S1Open ↗
Showing 3 of 4 on file for this type
▸Zoning, Tax Lot & Property Records3
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/17/2026B01378883-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/17/2026B01378883-I1Open ↗
▸DOB NOWZD1: DOB Zoning Diagram1
08/17/2026B01378883-I1Open ↗
▸Seals & Professional Certifications14
▸DOB NOWProgress Inspector Seal & Signature9
09/01/2026B01378883-S1Open ↗
09/01/2026B01378883-S1Open ↗
09/01/2026B01378883-S1Open ↗
Showing 3 of 9 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/17/2026B01378883-I1Open ↗
08/17/2026B01378883-S1Open ↗
08/17/2026B01378883-S3Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature1
09/01/2026B01378883-S1Open ↗
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/17/2026B01378883-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/17/2026B01378883-I1Open ↗
08/17/2026B01378883-S1Open ↗
08/17/2026B01378883-S3Open ↗
Showing 3 of 4 on file for this type
▸Other Documents4
▸DOB NOWProperty Ownership Certification1
08/17/2026B01378883-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/17/2026B01378883-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/17/2026B01378883-I1Open ↗
▸DOB NOWPlot Diagram1
08/17/2026B01378883-I1Open ↗