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Contractor
LEVIATHAN DEVELOPMENT LLC
General Contractor
2 projects with open permitsMANHATTAN · 5BROOKLYN · 4BRONX · 1
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6 buildings
34
Total Filings
11
Projects on File
6
Buildings Worked
2
Projects w/ Open Permits
General Contractor
Primary Trade
Activity
Projects by first filing month11 projects all-time
0123Apr '20 · 1May '20 · 2Jun '20 · 1Aug '20 · 1Oct '20 · 1Jan '21 · 1Dec '21 · 1Feb '22 · 2May '22 · 1Apr '20Jul '20Oct '20Jan '21Apr '21Jul '21Oct '21Jan '22Apr '22May '22
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit218%
Signed off764%
Other status218%
By project type
Alteration9
Most active buildings
All buildings →
17 SOMERS STREETBROOKLYN · latest 12/06/2022
4 projects
425 EAST 12 STREETMANHATTAN · latest 03/15/2022
2 projects
461 CONVENT AVENUEMANHATTAN · 1 open · latest 03/14/2023
2 projects
405 EAST 117 STREETMANHATTAN · 1 open · latest 02/01/2022
1 projects
3340 PALMER AVENUEBRONX · latest 03/28/2023
1 projects
219-10 133 AVENUEQUEENS · latest 10/04/2022
1 projects
Key relationships
Everyone →
Filing representatives
2 projects
1 projects
1 projects
Contractors
1 projects
Owners
4 projects
1 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
X00343692 ↗3340 PALMER AVENUE
BRONX
AlterationSigned-off05/20/202003/28/2023
Design CL ENGINEERING P.C.
Filer METRO DESIGN CONSULTANTS INC
Curb cut application filed in conjunction with NB building application # 220722225. Propose 10'-0 curb cut with 1'-6 splay on PALMER AVENUE.…
M00380434 ↗461 CONVENT AVENUE
MANHATTAN
AlterationPermit Issued08/07/202003/14/2023
Design RAS PE CONSULTING ENGINEERS
Owner LEVIATHAN
Filer STONECORE LLC
Structural Work- In Conjunction with New Building
321595582BIS17 SOMERS STREET
BROOKLYN
—ISSUED01/26/202112/06/2022——
B00329466 ↗17 SOMERS STREET
BROOKLYN
AlterationSigned-off06/08/202011/28/2022
Design R & O ENGINEERING
Structural concrete drawing
B00329299 ↗17 SOMERS STREET
BROOKLYN
AlterationSigned-off04/23/202011/26/2022
Design FABIAN CRUZ PE PLLC
Owner THE DANIEL GROUP
Filer ARC ARCHITECTURE + DESIGN STUDIO
MECHANICAL WORK TYPE IN CONJUNCTION WITH NB#321595582
B00336526 ↗17 SOMERS STREET
BROOKLYN
AlterationSigned-off05/19/202011/25/2022
Design ARC ARCHITECTURE + DESIGN STUDIO
CURB CUT WORK TYPE IN CONJUNCTION WITH NB#321595582
Counts cover all 11 projects (9 DOB NOW + 2 legacy BIS). 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
GAD ASHOORI PE203/25/2022
ARC ARCHITECTURE + DESIGN STUDIO105/19/2020
ASR ENGINEERING PC103/31/2023
CL ENGINEERING P.C.105/20/2020
FABIAN CRUZ PE PLLC105/05/2023
L & C ASSOCIATES112/13/2021
R & O ENGINEERING106/08/2020
RAS PE CONSULTING ENGINEERS101/28/2021
SR CONSULTANCY INC103/31/2023
SYED ENGINEERING, P.C.103/31/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ZONE PLUMBING & HEATING C103/31/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
THE DANIEL GROUP405/05/2023
LEVIATHAN101/28/2021
LEVIATHAN DEVELOPMENT101/28/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SITE SAFETY BSD203/25/2022
STONECORE LLC101/28/2021
WM ARCH CORP112/13/2021
9 DOB NOW projects + 2 legacy BIS 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 11Open permit 2Signed off 7Other status 2
11 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
X00343692 ↗3340 PALMER AVENUE
BRONX
AlterationSigned-off05/20/202003/28/2023
Design CL ENGINEERING P.C.
Filer METRO DESIGN CONSULTANTS INC
Curb cut application filed in conjunction with NB building application # 220722225. Propose 10'-0 curb cut with 1'-6 splay on PALMER AVENUE.…
M00380434 ↗461 CONVENT AVENUE
MANHATTAN
AlterationPermit Issued08/07/202003/14/2023
Design RAS PE CONSULTING ENGINEERS
Owner LEVIATHAN
Filer STONECORE LLC
Structural Work- In Conjunction with New Building
321595582BIS17 SOMERS STREET
BROOKLYN
—ISSUED01/26/202112/06/2022——
B00329466 ↗17 SOMERS STREET
BROOKLYN
AlterationSigned-off06/08/202011/28/2022
Design R & O ENGINEERING
Structural concrete drawing
B00329299 ↗17 SOMERS STREET
BROOKLYN
AlterationSigned-off04/23/202011/26/2022
Design FABIAN CRUZ PE PLLC
Owner THE DANIEL GROUP
Filer ARC ARCHITECTURE + DESIGN STUDIO
MECHANICAL WORK TYPE IN CONJUNCTION WITH NB#321595582
B00336526 ↗17 SOMERS STREET
BROOKLYN
AlterationSigned-off05/19/202011/25/2022
Design ARC ARCHITECTURE + DESIGN STUDIO
CURB CUT WORK TYPE IN CONJUNCTION WITH NB#321595582
Q00720978 ↗219-10 133 AVENUE
QUEENS
AlterationSigned-off05/01/202210/04/2022
Design SR CONSULTANCY INC
Filer HAOTIAN & ASSOCIATES INC.
INTERIOR RENOVATION TO EXISTING 2 FAMILY HOUSE. INSTALL NEW WOOD JOISTS, WINDOWS, PARTITIONS, WALLS, DOORS AND FINISHES AS PER PLANS. INSTAL…
121187704BIS461 CONVENT AVENUE
MANHATTAN
—ISSUED10/28/202009/21/2022——
M00679898 ↗425 EAST 12 STREET
MANHATTAN
AlterationSigned-off02/14/202203/15/2022
Design GAD ASHOORI PE
Owner THE DANIEL GROUP
Filer SITE SAFETY BSD
EMERGENCY REPAIR TO REPLACE EXISTING DAMAGED FACADE WITH NEW IN EXPOSURE 1. REMOVE ECB VIOLATION # 39055592Y AND CONSTRUCTION VIOLATION # 02…
M00674917 ↗425 EAST 12 STREET
MANHATTAN
AlterationSigned-off02/14/202203/02/2022
Design GAD ASHOORI PE
Owner THE DANIEL GROUP
Filer SITE SAFETY BSD
INSTALL CONSTRUCTION FENCEIN CONJUNCTION WITH ALT 2 # M00679898-I1
M00621980 ↗405 EAST 117 STREET
MANHATTAN
AlterationPermit Issued12/13/202102/01/2022
Design L & C ASSOCIATES
Owner THE DANIEL GROUP
Filer WM ARCH CORP
INTERIOR RENOVATION WITH PARTITIONS. AS PER PLANS. NO CHANGE IN USE, MEANS OF EGRESS OR OCCUPANCY IN THIS APPLICATION.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
17 SOMERS STREET ↗707/08/2026
3340 PALMER AVENUE ↗603/22/2026
405 EAST 117 STREET ↗303/21/2026
425 EAST 12 STREET ↗603/21/2026
461 CONVENT AVENUE ↗303/21/2026
219-10 133 AVENUE ↗903/21/2026
▾Documents — 383 on file (BIS + DOB NOW)
▸Plans & Drawings26
▸DOB NOWPlans/Sketch12
09/03/2026M00621980-I1 · 405 EAST 117 STREETRequest digital key ↗
09/02/2026M00679898-P1 · 425 EAST 12 STREETRequest digital key ↗
09/02/2026M00679898-I1 · 425 EAST 12 STREETRequest digital key ↗
Showing 3 of 12 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems7
09/02/2026B00329299-P1 · 17 SOMERS STREETRequest digital key ↗
09/02/2026B00329299-P2 · 17 SOMERS STREETRequest digital key ↗
09/02/2026B00329299-I1 · 17 SOMERS STREETRequest digital key ↗
Showing 3 of 7 on file for this type
▸DOB NOWPlans/Sketch - Structural5
09/04/2026M00380434-I1 · 461 CONVENT AVENUERequest digital key ↗
09/04/2026M00380434-P1 · 461 CONVENT AVENUERequest digital key ↗
09/04/2026M00380434-P3 · 461 CONVENT AVENUERequest digital key ↗
Showing 3 of 5 on file for this type
▸DOB NOWPlans/Sketch - Curb Cut2
09/02/2026B00336526-I1 · 17 SOMERS STREETRequest digital key ↗
08/15/2026X00343692-I1 · 3340 PALMER AVENUERequest digital key ↗
▸Applications & Permits51
▸BISPLAN / WORK APPROVAL APPLICATION33
07/01/2025121187704 · 461 CONVENT AVENUEOpen ↗
09/28/2023321595582 · 17 SOMERS STREETOpen ↗
09/27/2023321595582 · 17 SOMERS STREETOpen ↗
Showing 3 of 33 on file for this type
▸BISWORK PERMIT APPLICATION16
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 16 on file for this type
▸BISCERTIFICATE OF OCCUPANCY: APPLICATION2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸Zoning, Tax Lot & Property Records10
▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISVERIFY TAX LOT2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP2
On file, but not among the 200 most recently loaded documents for this source.
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▸BISZONING DIAGRAM2
On file, but not among the 200 most recently loaded documents for this source.
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▸BISZONING EXHIBIT IV: CERTIFICATION1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISZONING EXHIBIT I: CERTIFICATION1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Seals & Professional Certifications89
▸DOB NOWProgress Inspector Seal & Signature31
09/02/2026Q00720978-P5 · 219-10 133 AVENUEOpen ↗
09/02/2026Q00720978-P5 · 219-10 133 AVENUEOpen ↗
09/02/2026Q00720978-P5 · 219-10 133 AVENUEOpen ↗
Showing 3 of 31 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature31
09/02/2026Q00720978-P5 · 219-10 133 AVENUEOpen ↗
09/02/2026Q00720978-P5 · 219-10 133 AVENUEOpen ↗
09/01/2026Q00720978-P4 · 219-10 133 AVENUEOpen ↗
Showing 3 of 31 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature23
09/04/2026M00380434-P3 · 461 CONVENT AVENUEOpen ↗
09/02/2026M00674917-I1 · 425 EAST 12 STREETOpen ↗
09/02/2026M00679898-P1 · 425 EAST 12 STREETOpen ↗
Showing 3 of 23 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Trade Schedules & Equipment6
▸BISDEP SANITARY SEWER CERTIFICATION (HCP/SCP)2
07/11/2023121187704 · 461 CONVENT AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸BISSPRINKLER SYSTEMS1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISDETECTOR:CARBON MONOXIDE-CERT.OF INSTALL1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISSTANDPIPE SYSTEMS1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Safety & Tenant Protection9
▸BISSTREET TREE CHECKLIST3
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 3 on file for this type
▸BISSTREET TREE SUPPORTING DOCUMENT2
10/25/2023321595582 · 17 SOMERS STREETOpen ↗
10/25/2023321595582 · 17 SOMERS STREETOpen ↗
▸BISSTREET TREES: RECEIPT OF STREET TREES SITE PLAN2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISSTREET TREE SIGNOFF2
08/10/2023321595582 · 17 SOMERS STREETOpen ↗
01/27/2023121187704 · 461 CONVENT AVENUEOpen ↗
▸Environmental & Asbestos11
▸DOB NOWDEP ACP-5: Asbestos Assessment Report11
09/02/2026M00679898-I1 · 425 EAST 12 STREETOpen ↗
09/02/2026M00679898-P1 · 425 EAST 12 STREETOpen ↗
08/13/2026M00621980-I1 · 405 EAST 117 STREETOpen ↗
Showing 3 of 11 on file for this type
▸Energy Compliance18
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY7
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 7 on file for this type
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS (EN2)2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISINSULATION PLACEMENT & R VALUES1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISLIGHTING IN DWELLING UNITS1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISENERGY CODE COMPLIANCE INSPECTIONS1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISELECTRIC MOTORS1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISLIGHTING CONTROLS1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BIS* HVAC INSULATION AND SEALING1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWEN2: As Built Energy Analysis1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Inspections & Test Reports38
▸BISTECHNICAL REPORT: RESPONSIBILITY18
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 18 on file for this type
▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER4
07/10/2023321595582 · 17 SOMERS STREETOpen ↗
Showing 1 of 4 on file for this type
▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISFIRE-RESISTIVE RATED CONSTRUCTION2
07/06/2023321595582 · 17 SOMERS STREETOpen ↗
Showing 1 of 2 on file for this type
▸BISTECHNICAL REPORT: SOIL INSPECTION2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISTR2: CONCRETE FIELD TESTING TECHNICAL REPORT2
03/21/2023121187704 · 461 CONVENT AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸BISDEMOLITION (DM) JOB SIGNOFF2
02/08/2023121187704 · 461 CONVENT AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸BISSTRUCTURAL STEEL - HIGH STRENGTH BOLTING1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISSPRAYED FIRE-RESISTANT MATERIALS1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISSTRUCTURAL STEEL - WELDING1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISSUBGRADE INSP / SOILS-SITE PREP1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISHYDRO FLOW TEST LETTER1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISSOIL REPORT1
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Showing 0 of 1 on file for this type
▸Approvals, Objections & Sign-offs28
▸BISSCHEDULE A - OCCUPANCY / USE15
09/28/2023321595582 · 17 SOMERS STREETOpen ↗
09/27/2023321595582 · 17 SOMERS STREETOpen ↗
06/08/2023321595582 · 17 SOMERS STREETOpen ↗
Showing 3 of 15 on file for this type
▸BISSUPERSEDING LETTER7
On file, but not among the 200 most recently loaded documents for this source.
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▸BISLETTERS - SUPPORTING DOCUMENTATION3
06/15/2023321595582 · 17 SOMERS STREETOpen ↗
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▸BISTRANSIT AUTHORITY/MTA/PANYNJ APPROVAL2
On file, but not among the 200 most recently loaded documents for this source.
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▸BISACPE Objection Review Request1
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▸Cost, Insurance & Ownership11
▸BISPROJECT-SPECIFIC GL INSURANCE8
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▸BISAcord 25 (Acord Certificate of Liability Insurance)3
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▸Filing & Intake Forms31
▸BISADDITIONAL INFORMATION19
06/28/2023121187704 · 461 CONVENT AVENUEOpen ↗
06/28/2023121187704 · 461 CONVENT AVENUEOpen ↗
05/10/2023121187704 · 461 CONVENT AVENUEOpen ↗
Showing 3 of 19 on file for this type
▸BISBOROUGH INTAKE FORM8
On file, but not among the 200 most recently loaded documents for this source.
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▸BISEFILING COVER SHEET4
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▸Other Documents22
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION11
On file, but not among the 200 most recently loaded documents for this source.
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▸BISBPP - SUPPORTING DOCUMENTATION2
10/25/2023321595582 · 17 SOMERS STREETOpen ↗
Showing 1 of 2 on file for this type
▸BISLOWEST FLOOR ELEVATION2
07/05/2023321595582 · 17 SOMERS STREETOpen ↗
Showing 1 of 2 on file for this type
▸BISVESTIBULES1
On file, but not among the 200 most recently loaded documents for this source.
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▸BISMAINTENANCE INFORMATION1
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▸BISPERMANENT CERTIFICATE1
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▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1
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▸BISPROTECTION OF EXPOSED FOUNDATION INSULATION1
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▸BISPLOT DIAGRAM1
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▸DOB NOWDHCR Document1
08/13/2026M00621980-I1 · 405 EAST 117 STREETOpen ↗