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Contractor
BASE CONCEPT HVAC & GENERAL
General Contractor
1 project with open permitsBROOKLYN · 7QUEENS · 2MANHATTAN · 1
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7 of 8 buildings mapped
20
Total Filings
11
Projects on File
5
Buildings Worked
1
Projects w/ Open Permits
General Contractor
Primary Trade
Activity
Projects by first filing month11 projects all-time
0123Oct '07 · 1Aug '15 · 1Aug '18 · 1Aug '22 · 2Aug '23 · 2Feb '24 · 1Apr '24 · 2May '24 · 120082009201020112012201320142015201620172018201920202021202220232024
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit19%
Signed off764%
Other status327%
By project type
Alteration7
Alteration CO1
Most active buildings
All buildings →
75 DEKLAB AVENUEBROOKLYN · latest 04/24/2025
3 projects
152 ASHLAND PLACEBROOKLYN · 1 open · latest 10/15/2024
2 projects
1485 5 AVENUEMANHATTAN · latest 12/10/2022
1 projects
2749 UNIVERSITY AVENUEBRONX · latest 06/18/2020
1 projects
371 FLATBUSH AVENUE EXTBROOKLYN · latest 11/27/2023
1 projects
DE KALB AVENUEBROOKLYN · latest 02/15/2024
1 projects
Key relationships
Everyone →
Filing representatives
4 projects
1 projects
1 projects
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01033584 ↗75 DEKLAB AVENUE
BROOKLYN
AlterationSigned-off04/24/202404/24/2025
Design FRANCIS CAUFFMAN ARCHITECTS (FCA)
Filer BARNWELL CONSULTANTS
GENERAL CONSTRUCTION AS PER PLANS FILED HEREWITH. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B01033630 ↗75 DEKLAB AVENUE
BROOKLYN
AlterationSigned-off04/18/202404/24/2025
Design MEYERS+ ENGINEERS
Filer BARNWELL CONSULTANTS
MECHANICAL MODIFICATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B00897418 ↗152 ASHLAND PLACE
BROOKLYN
Alteration COPermit Issued08/17/202310/15/2024
Design FRANCIS CAUFFMAN ARCHITECTS (FCA)
Change of use, occupancy, and egress as per plan field herewith. No change to bulk is proposed
B00907289 ↗152 ASHLAND PLACE
BROOKLYN
AlterationSigned-off08/10/202308/06/2024
Design MEYERS+ ENGINEERS
Filer BARNWELL CONSULTANTS
GENERAL MECHANICAL SYSTEMS MODIFICATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, BULK, EGRESS, OR OCCUPANCY IS PROPOSED UNDER THIS AP…
B01042570 ↗75 DEKLAB AVENUE
BROOKLYN
AlterationSigned-off05/08/202405/13/2024
Design ONSE
Filer BARNWELL CONSULTANTS
POST APPROVAL AMENDMENT TO UPDATE CORRECTION LOCATION OF WORK FOR STRUCTURAL MODIFICATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE EGR…
B01002503 ↗DE KALB AVENUE
BROOKLYN
AlterationSigned-off02/08/202402/15/2024
Design KEMS ENGINEERING AND CONSTRUCTION
Filer LEWSAN CONSULTANTS
REGISTER THREE (3) HEAT PUMP CONDENSERS ON ROOF
Counts cover all 11 projects (8 DOB NOW + 3 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
FRANCIS CAUFFMAN ARCHITECTS (FCA)204/24/2024
MEYERS+ ENGINEERS206/24/2025
Guth DeConzo Consulting Engineers108/03/2022
KCE CONSULTING ENGINEERING PLLC103/06/2024
KEMS ENGINEERING AND CONSTRUCTION102/08/2024
ONSE102/04/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
FIFTH ON THE PARK CONDOMINIUM108/03/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BARNWELL CONSULTANTS406/24/2025
AEC CONSULTING & EXPEDITING, INC108/03/2022
LEWSAN CONSULTANTS102/08/2024
8 DOB NOW projects + 3 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 1Signed off 7Other status 3
Any typeAlteration 7Alteration CO 1
11 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01033584 ↗75 DEKLAB AVENUE
BROOKLYN
AlterationSigned-off04/24/202404/24/2025
Design FRANCIS CAUFFMAN ARCHITECTS (FCA)
Filer BARNWELL CONSULTANTS
GENERAL CONSTRUCTION AS PER PLANS FILED HEREWITH. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B01033630 ↗75 DEKLAB AVENUE
BROOKLYN
AlterationSigned-off04/18/202404/24/2025
Design MEYERS+ ENGINEERS
Filer BARNWELL CONSULTANTS
MECHANICAL MODIFICATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE EGRESS OR OCCUPANCY.
B00897418 ↗152 ASHLAND PLACE
BROOKLYN
Alteration COPermit Issued08/17/202310/15/2024
Design FRANCIS CAUFFMAN ARCHITECTS (FCA)
Change of use, occupancy, and egress as per plan field herewith. No change to bulk is proposed
B00907289 ↗152 ASHLAND PLACE
BROOKLYN
AlterationSigned-off08/10/202308/06/2024
Design MEYERS+ ENGINEERS
Filer BARNWELL CONSULTANTS
GENERAL MECHANICAL SYSTEMS MODIFICATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, BULK, EGRESS, OR OCCUPANCY IS PROPOSED UNDER THIS AP…
B01042570 ↗75 DEKLAB AVENUE
BROOKLYN
AlterationSigned-off05/08/202405/13/2024
Design ONSE
Filer BARNWELL CONSULTANTS
POST APPROVAL AMENDMENT TO UPDATE CORRECTION LOCATION OF WORK FOR STRUCTURAL MODIFICATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE EGR…
B01002503 ↗DE KALB AVENUE
BROOKLYN
AlterationSigned-off02/08/202402/15/2024
Design KEMS ENGINEERING AND CONSTRUCTION
Filer LEWSAN CONSULTANTS
REGISTER THREE (3) HEAT PUMP CONDENSERS ON ROOF
B00776871 ↗371 FLATBUSH AVENUE EXT
BROOKLYN
AlterationSigned-off08/03/202211/27/2023
Design KCE CONSULTING ENGINEERING PLLC
Filing to reflect the removal of the 7th floor scope.
M00785719 ↗1485 5 AVENUE
MANHATTAN
AlterationSigned-off08/03/202212/10/2022
Design Guth DeConzo Consulting Engineers
Owner FIFTH ON THE PARK CONDOMINIUM
Filer AEC CONSULTING & EXPEDITING, INC
The Scope of the work includes the installation of new dehumidification equipment and the insulation of existing piping.
220467046BIS2749 UNIVERSITY AVENUE
BRONX
—ISSUED08/17/201506/18/2020—PL
440489758BIS229-15 87 AVENUE
QUEENS
—ISSUED08/29/201809/14/2018—OT, PL
402660937BIS77-01 37 AVENUE
QUEENS
—ISSUED10/11/200701/21/2016—OT, PL
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
152 ASHLAND PLACE ↗507/08/2026
75 DEKLAB AVENUE ↗907/08/2026
371 FLATBUSH AVENUE EXT ↗407/08/2026
DE KALB AVENUE ↗107/08/2026
1485 5 AVENUE ↗107/08/2026
▾Documents — 196 on file (BIS + DOB NOW)
▸Plans & Drawings15
▸DOB NOWPlans/Sketch15
09/02/2026M00785719-I1 · 1485 5 AVENUERequest digital key ↗
08/28/2026B00776871-P2 · 371 FLATBUSH AVENUE EXTRequest digital key ↗
08/28/2026B00776871-P1 · 371 FLATBUSH AVENUE EXTRequest digital key ↗
Showing 3 of 15 on file for this type
▸Applications & Permits27
▸BISPLAN / WORK APPROVAL APPLICATION18
09/16/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
11/04/2022220467046 · 2749 UNIVERSITY AVENUEOpen ↗
09/07/2022220467046 · 2749 UNIVERSITY AVENUEOpen ↗
Showing 3 of 18 on file for this type
▸BISWORK PERMIT APPLICATION8
09/16/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
09/14/2018440489758 · 229-15 87 AVENUEOpen ↗
08/29/2018440489758 · 229-15 87 AVENUEOpen ↗
Showing 3 of 8 on file for this type
▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Zoning, Tax Lot & Property Records3
▸BISRESTRICTION: RESTRICTIVE DECLARATION1
10/22/2015402660937 · 77-01 37 AVENUEOpen ↗
▸BISVERIFY TAX LOT1
07/01/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1
06/30/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸Seals & Professional Certifications74
▸DOB NOWProgress Inspector Seal & Signature29
09/02/2026B01033630-P1 · 75 DEKLAB AVENUEOpen ↗
09/02/2026B01033630-P1 · 75 DEKLAB AVENUEOpen ↗
09/01/2026B00907289-P1 · 152 ASHLAND PLACEOpen ↗
Showing 3 of 29 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature24
09/02/2026B01033630-P1 · 75 DEKLAB AVENUEOpen ↗
09/01/2026B00907289-P1 · 152 ASHLAND PLACEOpen ↗
09/01/2026B00907289-P1 · 152 ASHLAND PLACEOpen ↗
Showing 3 of 24 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature15
08/28/2026B00776871-I1 · 371 FLATBUSH AVENUE EXTOpen ↗
08/28/2026B00776871-P1 · 371 FLATBUSH AVENUE EXTOpen ↗
08/27/2026B00907289-P1 · 152 ASHLAND PLACEOpen ↗
Showing 3 of 15 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION3
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 3 on file for this type
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸Trade Schedules & Equipment8
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE4
02/08/2016402660937 · 77-01 37 AVENUEOpen ↗
10/22/2015402660937 · 77-01 37 AVENUEOpen ↗
Showing 2 of 4 on file for this type
▸BISSCHEDULE B - PLUMBING1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸BISHEATING SYSTEMS1
08/22/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸BISSPRINKLER SYSTEMS1
08/22/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸BISSELF-CERT PLUMBING NOTICE1
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 Protection4
▸BISSTREET TREE CHECKLIST1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISTENANT PROTECTION PLAN AND NOTES1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸DOB NOWStreet Tree Checklist1
08/13/2026B00897418-I1 · 152 ASHLAND PLACEOpen ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/13/2026B00897418-I1 · 152 ASHLAND PLACEOpen ↗
▸Environmental & Asbestos13
▸DOB NOWDEP ACP-5: Asbestos Assessment Report11
08/28/2026B00776871-P1 · 371 FLATBUSH AVENUE EXTOpen ↗
08/25/2026B01033630-I1 · 75 DEKLAB AVENUEOpen ↗
08/25/2026B01033630-P1 · 75 DEKLAB AVENUEOpen ↗
Showing 3 of 11 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)2
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
Showing 1 of 2 on file for this type
▸Energy Compliance9
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
Showing 1 of 3 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
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸BISNYCECC ANALYSIS1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸BISLIGHTING CONTROLS1
09/11/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸DOB NOWEN2: As Built Energy Analysis1
08/13/2026M00785719-I1 · 1485 5 AVENUEOpen ↗
▸Inspections & Test Reports8
▸BISTECHNICAL REPORT: RESPONSIBILITY4
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
Showing 1 of 4 on file for this type
▸BISHYDRAULIC FLOW CALCULATIONS2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸BISMECHANICAL SYSTEMS1
08/22/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸BISHYDRO FLOW TEST LETTER1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Approvals, Objections & Sign-offs16
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter8
08/25/2026B01033630-P1 · 75 DEKLAB AVENUEOpen ↗
08/25/2026B01033630-I1 · 75 DEKLAB AVENUEOpen ↗
08/25/2026B01042570-P1 · 75 DEKLAB AVENUEOpen ↗
Showing 3 of 8 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION4
09/16/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
Showing 1 of 4 on file for this type
▸BISSCHEDULE A - OCCUPANCY / USE3
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 3 on file for this type
▸BISSUPERSEDING LETTER1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Cost, Insurance & Ownership4
▸BISCOST AFFIDAVIT3
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
10/22/2015402660937 · 77-01 37 AVENUEOpen ↗
Showing 2 of 3 on file for this type
▸BISCOST AFFIDAVIT (FINAL): PW31
07/10/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
▸Filing & Intake Forms12
▸BISEFILING COVER SHEET4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸BISADDITIONAL INFORMATION3
12/08/2022220467046 · 2749 UNIVERSITY AVENUEOpen ↗
Showing 1 of 3 on file for this type
▸BISBOROUGH INTAKE FORM3
09/16/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
09/16/2025220467046 · 2749 UNIVERSITY AVENUEOpen ↗
Showing 2 of 3 on file for this type
▸BISEFILING JOB APPLICATION COVER SHEET1
06/14/2018440489758 · 229-15 87 AVENUEOpen ↗
▸DOB NOWAI1 Form (from plan PDF)1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Other Documents3
▸BISPLOT DIAGRAM1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWProperty Ownership Certification1
08/13/2026B00897418-I1 · 152 ASHLAND PLACEOpen ↗
▸DOB NOWPARTIAL DEMO: 10-DAY Notice1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type