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BuildNYC
Three families
449 11TH STREET
BROOKLYN · Park Slope · BIN 3022729
💬 Discuss this project
1901Year Built
3Stories
C0Building Class
R6BZoning
2,295 sfGross Floor Area
3Units
Rent Stabilized6 Active Violations ▸FDNY Report ↗
Three families · 1,783 sf lot · 1.29 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbing
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Permit Issued — active, not yet Signed-off
RoofMechanical system installationUnder Construction16p · 2 filings · 20 docs
Floor 3Mechanical system installationUnder Construction14p · 2 filings · 20 docs
Floor 2Mechanical system installationUnder Construction14p · 2 filings · 20 docs
Floor 1Mechanical system installationUnder Construction14p · 2 filings · 20 docs
CellarMechanical system installationUnder Construction15p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
11/14/2025$3.0M—Private party → Private party$1,307/sf building
03/16/2020$165K—— → —$72/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Konoski Engineering310/05/2026
H2 Consulting PE104/23/2026
Garcia-Quismondo, Luismiguel RA112/31/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
Youber Design603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Syros ConstructionGeneral Contractor407/29/2026
Parkset Plumbing CoPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
H2 Consulting PE835204/23/2026
Konoski Engineering9111101/12/2026
Fenagh6942112/31/2025
Building Lifecycle
All (69)Filed (5)Permit Issued (5)Violation (11)Objection (18)Special Inspection (30)
10/05/2026
Filed — Alteration CO
LOWER REAR PORTION OF CELLAR SLAB AND PORTION OF REAR YARD. ERECT OPEN PORCH ON 1ST FLOOR REAR. CREATE ROOF OPENINGS FOR SKYLIGHTS AND HATCH DOOR. REINFORCE EXISTING WOOD JOISTS ON EACH FLOOR IN CONJUNCTION WITH B01331163-I1.
B01331163-P1
09/24/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
christopher konoski
09/24/2026
Special inspection requirement — Maintenance information
christopher konoski
09/24/2026
Special inspection requirement — HVAC-R and service water heating equipment
christopher konoski
09/24/2026
Special inspection requirement — HVAC-R and service water heating system controls
christopher konoski
08/17/2026
Violation issued (ECB, closed)
Unknown
08/17/2026
Violation issued (ECB, open)
Unknown
08/17/2026
Violation issued (ECB, open)
Construction
08/17/2026
Violation issued (ECB, open)
Site Safety
08/17/2026
Violation issued (ECB, open)
Construction
08/17/2026
Violation issued (ECB, open)
Construction
07/28/2026
Permit issued — Structural
B01331163-S3-GC-CX
07/28/2026
Permit issued — General Construction
B01331163-I1-GC
06/03/2026
Permit issued — Plumbing
B01331163-S2-PL
05/05/2026
Permit issued — Structural
B01331163-S3-GC-CX
04/30/2026
Violation issued (HPD, open)
A
04/23/2026
Filed — Alteration CO
LOWER REAR PORTION OF CELLAR SLAB AND PORTION OF REAR YARD. ERECT OPEN PORCH ON 1ST FLOOR REAR. CREATE ROOF OPENINGS FOR SKYLIGHTS AND HATCH DOOR. REINFORCE EXISTING WOOD JOISTS ON EACH FLOOR IN CONJUNCTION WITH B01331163-I1.
B01331163-S3
04/16/2026
Permit issued — General Construction
B01331163-I1-GC
04/07/2026
Objection raised — Admin
04/07/2026
Objection resolved — Addressed
04/06/2026
Objection resolved — Addressed
04/06/2026
Objection resolved — Addressed
02/09/2026
Special inspection requirement — Metering
AILANTO DANIEL MINAWI
01/27/2026
Special inspection requirement — Maintenance information
AILANTO DANIEL MINAWI
01/27/2026
Special inspection requirement — Air barrier — testing
AILANTO DANIEL MINAWI
01/12/2026
Filed — Alteration CO
LOWER REAR PORTION OF CELLAR SLAB AND PORTION OF REAR YARD. ERECT OPEN PORCH ON 1ST FLOOR REAR. CREATE ROOF OPENINGS FOR SKYLIGHTS AND HATCH DOOR. REINFORCE EXISTING WOOD JOISTS ON EACH FLOOR IN CONJUNCTION WITH B01331163-I1.
B01331163-S2
01/12/2026
Filed — Alteration
INSTALLATION OF A VRF HEAT PUMP SYSTEM COMPLETE WITH ROOF MOUNTED CONDENSING UNIT AND FULLY DUCTED INDOOR AIR HANDLING UNITS AND CONTROLS, MECHANICAL VENTILATION AND EXHAUST SYSTEMS FOR KITCHENS, BATHROOMS, AND LAUNDRY.
B01336787-I1
01/12/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
christopher konoski
01/12/2026
Special inspection requirement — Shutoff dampers
christopher konoski
01/12/2026
Special inspection requirement — HVAC-R and service water heating equipment
christopher konoski
01/12/2026
Special inspection requirement — Maintenance information
christopher konoski
01/12/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
christopher konoski
01/12/2026
Special inspection requirement — HVAC-R and service water heating system controls
christopher konoski
01/12/2026
Special inspection requirement — Energy Code Compliance Inspections
christopher konoski
01/08/2026
Objection raised — Other
01/08/2026
Special inspection requirement — HVAC-R and service water heating system controls
christopher konoski
01/08/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
christopher konoski
01/08/2026
Special inspection requirement — Maintenance information
christopher konoski
01/08/2026
Special inspection requirement — HVAC-R and service water heating equipment
christopher konoski
01/07/2026
Objection resolved — Addressed
01/07/2026
Objection resolved — Addressed
01/07/2026
Objection resolved — Addressed
01/07/2026
Objection resolved — Addressed
01/07/2026
Objection resolved — Addressed
01/07/2026
Objection resolved — Addressed
01/02/2026
Objection raised — Other
01/02/2026
Objection raised — Admin
01/02/2026
Objection raised — Other
01/02/2026
Objection raised — Fire_Protection
01/02/2026
Objection raised — Zoning
01/02/2026
Objection raised — Structural
01/02/2026
Objection raised — Admin
12/31/2025
Filed — Alteration CO
LOWER REAR PORTION OF CELLAR SLAB AND PORTION OF REAR YARD. ERECT OPEN PORCH ON 1ST FLOOR REAR. CREATE ROOF OPENINGS FOR SKYLIGHTS AND HATCH DOOR. REINFORCE EXISTING WOOD JOISTS ON EACH FLOOR IN CONJUNCTION WITH B01331163-I1.
B01331163-I1
12/18/2025
Special inspection requirement — Mechanical Systems
christopher konoski
12/18/2025
Special inspection requirement — Final
christopher konoski
12/16/2025
Special inspection requirement — Protection of exposed foundation insulation
AILANTO DANIEL MINAWI
12/16/2025
Special inspection requirement — Interior lighting power
AILANTO DANIEL MINAWI
12/16/2025
Special inspection requirement — Air barrier - visual inspection
AILANTO DANIEL MINAWI
12/16/2025
Special inspection requirement — Fenestration air leakage
AILANTO DANIEL MINAWI
12/16/2025
Special inspection requirement — Insulation placement and R values
AILANTO DANIEL MINAWI
Latest 60 of 69 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralPermit IssuedSyros Construction07/28/2026
DOB NOWGeneral ConstructionPermit IssuedSyros Construction07/28/2026
DOB NOWPlumbingPermit IssuedParkset Plumbing Co06/03/2026
DOB NOWStructuralPermit IssuedSyros Construction05/05/2026
DOB NOWGeneral ConstructionPermit IssuedSyros Construction04/16/2026
1 project · most recent 01/12/2026
Heating and Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
01/12/2026——Heating and Air Conditioning Systems
Heat / Cool
Mitsubishi Electric MXZ-SM48NLHZ 54,000 BTU · Condensing Unit ×2
PEFY-L06NMAU-A 6,700 BTU · Vrf Indoor ×2
PEFY-L12NMAU-A 13,500 BTU · Vrf Indoor ×2
PKFY-L06NLMU-A 6,700 BTU · Vrf Indoor ×2
PEFY-L18NMAU-A 20,000 BTU · Vrf Indoor ×1
PEFY-L24NMAU-A 27,000 BTU · Vrf Indoor ×1
1 project · most recent 10/05/2026
Gas Water/Sanitary
FiledStatusContractorScope
10/05/2026Permit IssuedParkset Plumbing CoGas, Water/Sanitary
4 projects · most recent 08/21/2026
General Wiring
FiledStatusContractorScope
08/21/2026Permit IssuedWCK ElectricGeneral Wiring
04/22/2026Permit IssuedStanco System Electrical Cont—
08/15/2025CompleteBlaze ElectricGeneral Wiring
10/14/2020CompleteBlaze ElectricGeneral Wiring
1 project · most recent 10/05/2026
Steel Masonry Wood
FiledStatusContractorScope
10/05/2026Permit IssuedSyros ConstructionSteel, Masonry, Wood
▾Special Inspection Requirements (DOB NOW) — 32
DateRequirementInspectorRole
09/24/2026HVAC-R and service water piping design and insulationchristopher konoskienergy_progress
09/24/2026Maintenance informationchristopher konoskienergy_progress
09/24/2026HVAC-R and service water heating equipmentchristopher konoskienergy_progress
09/24/2026HVAC-R and service water heating system controlschristopher konoskienergy_progress
02/09/2026MeteringAILANTO DANIEL MINAWIenergy_progress
01/27/2026Maintenance informationAILANTO DANIEL MINAWIenergy_progress
01/27/2026Air barrier — testing AILANTO DANIEL MINAWIenergy_progress
01/12/2026Fire-Resistant Penetrations and Jointschristopher konoskispecial
01/12/2026Shutoff damperschristopher konoskienergy_progress
01/12/2026HVAC-R and service water heating equipmentchristopher konoskienergy_progress
01/12/2026Maintenance informationchristopher konoskienergy_progress
01/12/2026HVAC-R and service water piping design and insulationchristopher konoskienergy_progress
01/12/2026HVAC-R and service water heating system controlschristopher konoskienergy_progress
01/12/2026Energy Code Compliance Inspectionschristopher konoskiprogress
01/08/2026HVAC-R and service water heating system controlschristopher konoskienergy_progress
01/08/2026HVAC-R and service water piping design and insulationchristopher konoskienergy_progress
01/08/2026Maintenance informationchristopher konoskienergy_progress
01/08/2026HVAC-R and service water heating equipmentchristopher konoskienergy_progress
12/18/2025Mechanical Systemschristopher konoskispecial
12/18/2025Finalchristopher konoskiprogress
12/16/2025Protection of exposed foundation insulationAILANTO DANIEL MINAWIenergy_progress
12/16/2025Interior lighting powerAILANTO DANIEL MINAWIenergy_progress
12/16/2025Air barrier - visual inspectionAILANTO DANIEL MINAWIenergy_progress
12/16/2025Fenestration air leakageAILANTO DANIEL MINAWIenergy_progress
12/16/2025Insulation placement and R valuesAILANTO DANIEL MINAWIenergy_progress
Latest 25 of 32.
▾Documents — 41 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/19/2026B01336787-I1Request digital key ↗
08/17/2026B01331163-S2Request digital key ↗
08/17/2026B01331163-S3Request digital key ↗
Showing 3 of 4 on file for this type
▸Zoning, Tax Lot & Property Records4
▸DOB NOWRestrictive Declaration/Easement 13
08/17/2026B01331163-S3Open ↗
08/13/2026B01331163-S2Open ↗
08/13/2026B01331163-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B01331163-I1Open ↗
▸Seals & Professional Certifications24
▸DOB NOWProgress Inspector Seal & Signature17
10/06/2026B01331163-P1Open ↗
09/02/2026B01331163-S2Open ↗
08/31/2026B01331163-I1Open ↗
Showing 3 of 17 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/19/2026B01336787-I1Open ↗
08/17/2026B01331163-I1Open ↗
08/17/2026B01331163-S2Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
08/31/2026B01331163-I1Open ↗
08/31/2026B01331163-I1Open ↗
08/23/2026B01336787-I1Open ↗
▸Safety & Tenant Protection4
▸DOB NOWStreet Tree Checklist2
08/17/2026B01331163-S3Open ↗
08/13/2026B01331163-I1Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan2
08/17/2026B01331163-S3Open ↗
08/13/2026B01331163-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/19/2026B01336787-I1Open ↗
08/17/2026B01331163-I1Open ↗
08/17/2026B01331163-S2Open ↗
Showing 3 of 4 on file for this type
▸Other Documents1
▸DOB NOWProperty Ownership Certification1
08/17/2026B01331163-I1Open ↗