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Contractor
SLON DEVELOPMENT INC
General Contractor
2 projects with open permitsMANHATTAN · 4BROOKLYN · 2QUEENS · 1
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6 buildings
13
Total Filings
7
Projects on File
6
Buildings Worked
2
Projects w/ Open Permits
General Contractor
Primary Trade
Activity
Projects by first filing month7 projects all-time
0123Jul '22 · 2Aug '22 · 1Nov '22 · 1Jun '23 · 1Feb '24 · 2Jul '22Sep '22Nov '22Jan '23Mar '23May '23Jul '23Sep '23Nov '23Jan '24Feb '24
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit229%
Signed off571%
By project type
Alteration6
Alteration CO1
Most active buildings
All buildings →
541 AMSTERDAM AVENUEMANHATTAN · latest 05/16/2023
2 projects
630 10 AVENUEMANHATTAN · latest 05/11/2023
1 projects
1036 LEXINGTON AVENUEMANHATTAN · latest 05/31/2023
1 projects
2421 OCEAN AVENUEBROOKLYN · latest 10/01/2024
1 projects
1101 AVENUE UBROOKLYN · 1 open · latest 03/14/2024
1 projects
198 BEACH 122 STREETQUEENS · 1 open · latest 11/29/2024
1 projects
Key relationships
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Filing representatives
3 projects
1 projects
1 projects
Owners
1 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q00866867 ↗198 BEACH 122 STREET
QUEENS
Alteration COPermit Issued06/02/202311/29/2024
Design DP ARCHITECT
PLANS FILED TO LEGALIZED THE REMOVAL OF INTERIOR ONE CAR GARAGE,REMOVAL OF GARAGE DOOR AND THE INSTALLATION OF WINDOW AND BRICK VENEER AT FI…
B01004368 ↗2421 OCEAN AVENUE
BROOKLYN
AlterationSigned-off02/16/202410/01/2024
Design DP ARCHITECT
Owner 2421 OCEAN AVENUE LLC
PLUMBING WORK BEING FILED IN CONJUNCTION WITH INTERIOR RENOVATION OF EXIST. MEDICAL OFFICE
B00994020 ↗1101 AVENUE U
BROOKLYN
AlterationPermit Issued02/12/202403/14/2024
Design LESLIE M. GOOD ARCHITECTS
NEW PLUMBING FIXTURES 4 TOILETS, 4 LAV, 2 SINKS, REPLACE 1 TOILET 1 LAV.
M00774676 ↗1036 LEXINGTON AVENUE
MANHATTAN
AlterationSigned-off08/02/202205/31/2023
Design LEILA COLBERT ARCHITECTURE PLLC
Filer HUNT ARCHITECTS
CREATE THREE MASONRY OPENINGS FOR THE INSTALLATION OF THREE (3) THROUGH THE WALL COOLING UNITS; REMOVE AND REPLACE ALL FINISHES, FIXTURES A…
M00767566 ↗541 AMSTERDAM AVENUE
MANHATTAN
AlterationSigned-off07/25/202205/16/2023
Design CUSTOM DESIGNING & ENGINEERING
Filer JAM CONSULTANTS, INC.
INSTALL THROUGH-WALL PTAC UNITS WITH RELATED PIPING.
M00769786 ↗541 AMSTERDAM AVENUE
MANHATTAN
AlterationSigned-off07/08/202205/16/2023
Design LEILA COLBERT ARCHITECTURE PLLC
Filer HUNT ARCHITECTS
General renovation of apartment 6C. New partitions, modifications to the existing bathroom and kitchen replacement in-kind. New bathroom a…
Counts cover all 7 projects (7 DOB NOW). Dated by first filing; BIS projects by first permit issuance.
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
LEILA COLBERT ARCHITECTURE PLLC306/20/2023
DP ARCHITECT205/06/2025
CUSTOM DESIGNING & ENGINEERING108/02/2023
LESLIE M. GOOD ARCHITECTS102/13/2024
PROJECT TACTICAL SOLUTIONS, LLC102/16/2023
SIMONE ARCHITECTURE108/02/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ALMA DESIGN INC105/06/2025
ALMA PLBG SPRINKLER INC105/06/2025
ALTAIR PLUMBING AND HEAT102/13/2024
BRAVO CONSTRUCTION NY COR102/16/2023
HAMILTON AIR COMPANY, INC108/02/2022
SMART PLBG & HTG CORP108/02/2023
STANLEY RUTH CO LLC108/02/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
2421 OCEAN AVENUE LLC105/06/2025
JPJ REALTY102/16/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
HUNT ARCHITECTS306/20/2023
JAM CONSULTANTS, INC.108/02/2023
PROJECT TACTICAL SOLUTIONS102/16/2023
7 DOB NOW projects, anchored the same way as Buildings Worked. Status is the project's permit state today: open = at least one permit currently issued. BIS projects show their raw permit status and are not counted as open.
All 7Open permit 2Signed off 5
Any typeAlteration 6Alteration CO 1
7 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q00866867 ↗198 BEACH 122 STREET
QUEENS
Alteration COPermit Issued06/02/202311/29/2024
Design DP ARCHITECT
PLANS FILED TO LEGALIZED THE REMOVAL OF INTERIOR ONE CAR GARAGE,REMOVAL OF GARAGE DOOR AND THE INSTALLATION OF WINDOW AND BRICK VENEER AT FI…
B01004368 ↗2421 OCEAN AVENUE
BROOKLYN
AlterationSigned-off02/16/202410/01/2024
Design DP ARCHITECT
Owner 2421 OCEAN AVENUE LLC
PLUMBING WORK BEING FILED IN CONJUNCTION WITH INTERIOR RENOVATION OF EXIST. MEDICAL OFFICE
B00994020 ↗1101 AVENUE U
BROOKLYN
AlterationPermit Issued02/12/202403/14/2024
Design LESLIE M. GOOD ARCHITECTS
NEW PLUMBING FIXTURES 4 TOILETS, 4 LAV, 2 SINKS, REPLACE 1 TOILET 1 LAV.
M00774676 ↗1036 LEXINGTON AVENUE
MANHATTAN
AlterationSigned-off08/02/202205/31/2023
Design LEILA COLBERT ARCHITECTURE PLLC
Filer HUNT ARCHITECTS
CREATE THREE MASONRY OPENINGS FOR THE INSTALLATION OF THREE (3) THROUGH THE WALL COOLING UNITS; REMOVE AND REPLACE ALL FINISHES, FIXTURES A…
M00767566 ↗541 AMSTERDAM AVENUE
MANHATTAN
AlterationSigned-off07/25/202205/16/2023
Design CUSTOM DESIGNING & ENGINEERING
Filer JAM CONSULTANTS, INC.
INSTALL THROUGH-WALL PTAC UNITS WITH RELATED PIPING.
M00769786 ↗541 AMSTERDAM AVENUE
MANHATTAN
AlterationSigned-off07/08/202205/16/2023
Design LEILA COLBERT ARCHITECTURE PLLC
Filer HUNT ARCHITECTS
General renovation of apartment 6C. New partitions, modifications to the existing bathroom and kitchen replacement in-kind. New bathroom a…
M07999102 ↗630 10 AVENUE
MANHATTAN
AlterationSigned-off11/01/202205/11/2023
Design LEILA COLBERT ARCHITECTURE PLLC
Owner JPJ REALTY
Filer PROJECT TACTICAL SOLUTIONS
STRUCTURAL WORK TO INCLUDE THE RESTORATION OF DETERIORATED WOOD BEAMS, COLUMNS, & WALLS IN CELLAR AND FIRST FLOOR RESTAURANT. NO CHANGE IN U…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
198 BEACH 122 STREET ↗107/08/2026
1101 AVENUE U ↗107/08/2026
630 10 AVENUE ↗207/08/2026
541 AMSTERDAM AVENUE ↗507/08/2026
1036 LEXINGTON AVENUE ↗203/21/2026
2421 OCEAN AVENUE ↗203/21/2026
▾Documents — 87 on file (BIS + DOB NOW)
▸Plans & Drawings18
▸DOB NOWPlans/Sketch18
09/02/2026M00769786-I1 · 541 AMSTERDAM AVENUERequest digital key ↗
09/02/2026M00769786-P1 · 541 AMSTERDAM AVENUERequest digital key ↗
09/02/2026M00767566-P1 · 541 AMSTERDAM AVENUERequest digital key ↗
Showing 3 of 18 on file for this type
▸Applications & Permits1
▸DOB NOWLPC Approval/Permit1
08/13/2026M00774676-I1 · 1036 LEXINGTON AVENUEOpen ↗
▸Seals & Professional Certifications49
▸DOB NOWProgress Inspector Seal & Signature22
09/02/2026M00767566-S2 · 541 AMSTERDAM AVENUEOpen ↗
08/31/2026M00774676-I1 · 1036 LEXINGTON AVENUEOpen ↗
08/31/2026M00774676-I1 · 1036 LEXINGTON AVENUEOpen ↗
Showing 3 of 22 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature18
09/02/2026M00769786-I1 · 541 AMSTERDAM AVENUEOpen ↗
09/02/2026M00769786-P1 · 541 AMSTERDAM AVENUEOpen ↗
09/02/2026M00767566-P2 · 541 AMSTERDAM AVENUEOpen ↗
Showing 3 of 18 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature9
09/02/2026M00767566-S2 · 541 AMSTERDAM AVENUEOpen ↗
08/31/2026M00774676-I1 · 1036 LEXINGTON AVENUEOpen ↗
08/30/2026B01004368-P1 · 2421 OCEAN AVENUEOpen ↗
Showing 3 of 9 on file for this type
▸Safety & Tenant Protection3
▸DOB NOWHPD-2: Clinton Special District Anti-Harassment Checklist2
08/13/2026M07999102-S1 · 630 10 AVENUEOpen ↗
08/13/2026M07999102-I1 · 630 10 AVENUEOpen ↗
▸DOB NOWStreet Tree Checklist1
08/13/2026Q00866867-I1 · 198 BEACH 122 STREETOpen ↗
▸Environmental & Asbestos12
▸DOB NOWDEP ACP-5: Asbestos Assessment Report12
09/02/2026M00769786-P1 · 541 AMSTERDAM AVENUEOpen ↗
09/02/2026M00769786-I1 · 541 AMSTERDAM AVENUEOpen ↗
09/02/2026M00767566-S3 · 541 AMSTERDAM AVENUEOpen ↗
Showing 3 of 12 on file for this type
▸Energy Compliance2
▸DOB NOWEN2: As Built Energy Analysis2
09/02/2026M00769786-I1 · 541 AMSTERDAM AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸Other Documents2
▸DOB NOWFinal Survey1
08/13/2026Q00866867-I1 · 198 BEACH 122 STREETOpen ↗
▸DOB NOWProperty Ownership Certification1
08/24/2026Q00866867-I1 · 198 BEACH 122 STREETOpen ↗