Efficient Structures Corp. — NYC General Contractor: DOB Permits, Filings & Buildings

Contractor

EFFICIENT STRUCTURES CORP

General Contractor

BROOKLYN · 3QUEENS · 2

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5 buildings

Total Filings

Projects on File

Buildings Worked

Projects w/ Open Permits

General Contractor

Primary Trade

Activity

Projects by first filing month5 projects all-time

bars = month · line = 3-mo average

Portfolio status

Browse projects →

Signed off120%

Other status480%

By project type

Alteration1

Most active buildings

All buildings →

361 HANCOCK STREETBROOKLYN · latest 08/18/2021

1 projects

4202 CHURCH AVENUEBROOKLYN · latest 08/09/2022

1 projects

186 CONKLIN AVENUEBROOKLYN · latest 07/25/2018

1 projects

48-48 208 STREETQUEENS · latest 03/29/2023

1 projects

120-31 199 STREETQUEENS · latest 04/05/2023

1 projects

Key relationships

Everyone →

Design firms

OLUFEMI FALADE, P.E.

1 projects

Most recent projects

All projects →

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
421799502BIS	120-31 199 STREET QUEENS	—	ISSUED	04/05/2023	04/05/2023	—	OT
440773995BIS	48-48 208 STREET QUEENS	—	ISSUED	03/29/2023	03/29/2023	—	OT
B00677908 ↗	4202 CHURCH AVENUE BROOKLYN	Alteration	Signed-off	03/13/2022	08/09/2022	Design OLUFEMI FALADE, P.E.	to combine 4208 church avenue an existing restaurant u.g.6 with 4206 church avenue an existing store u.g.6 to make one eating and drinking e…
321645797BIS	361 HANCOCK STREET BROOKLYN	—	ISSUED	08/15/2018	08/18/2021	—	OT, PL
321615524BIS	186 CONKLIN AVENUE BROOKLYN	—	ISSUED	07/25/2018	07/25/2018	—	OT

Counts cover all 5 projects (1 DOB NOW + 4 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.

Name	Projects together	Most recent
OLUFEMI FALADE, P.E.	1	03/13/2022

1 DOB NOW project + 4 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 5Signed off 1Other status 4

5 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
421799502BIS	120-31 199 STREET QUEENS	—	ISSUED	04/05/2023	04/05/2023	—	OT
440773995BIS	48-48 208 STREET QUEENS	—	ISSUED	03/29/2023	03/29/2023	—	OT
B00677908 ↗	4202 CHURCH AVENUE BROOKLYN	Alteration	Signed-off	03/13/2022	08/09/2022	Design OLUFEMI FALADE, P.E.	to combine 4208 church avenue an existing restaurant u.g.6 with 4206 church avenue an existing store u.g.6 to make one eating and drinking e…
321645797BIS	361 HANCOCK STREET BROOKLYN	—	ISSUED	08/15/2018	08/18/2021	—	OT, PL
321615524BIS	186 CONKLIN AVENUE BROOKLYN	—	ISSUED	07/25/2018	07/25/2018	—	OT

Click a row for this entity's own projects, plans and documents at that building.

Building	Filings	Most Recent
4202 CHURCH AVENUE ↗	3	03/21/2026

▾Documents — 124 on file (BIS + DOB NOW)

▸Plans & Drawings1

▸DOB NOWPlans/Sketch1

08/31/2026B00677908-I1 · 4202 CHURCH AVENUERequest digital key ↗

▸Applications & Permits17

▸BISWORK PERMIT APPLICATION7

07/01/2019321645797 · 361 HANCOCK STREETOpen ↗

04/26/2019321645797 · 361 HANCOCK STREETOpen ↗

08/16/2018321645797 · 361 HANCOCK STREETOpen ↗

Showing 3 of 7 on file for this type

▸BISPLAN / WORK APPROVAL APPLICATION7

09/05/2017321645797 · 361 HANCOCK STREETOpen ↗

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

Showing 2 of 7 on file for this type

▸BISPARTIAL DEMO: 10-DAY NOTICE (FOR AL/EW-OT PERMITS)1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION1

12/09/2019321645797 · 361 HANCOCK STREETOpen ↗

▸BISPARTIAL DEMO PLAN & DS1 (FOR AL/EW-OT PERMITS)1

On file, but not among the 200 most recently loaded documents for this source.

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▸Zoning, Tax Lot & Property Records1

▸BISZONING DIAGRAM1

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 Certifications10

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION4

08/09/2018321645797 · 361 HANCOCK STREETOpen ↗

09/05/2017321645797 · 361 HANCOCK STREETOpen ↗

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

Showing 3 of 4 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

▸BISAPPLICANT OWNER SIGNATURE1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature1

08/13/2026B00677908-I1 · 4202 CHURCH AVENUEOpen ↗

▸DOB NOWProgress Inspector Seal & Signature1

09/02/2026B00677908-I1 · 4202 CHURCH AVENUEOpen ↗

▸Trade Schedules & Equipment4

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE2

01/12/2018321645797 · 361 HANCOCK STREETOpen ↗

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

▸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

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸Safety & Tenant Protection5

▸BISEXCAVATION - SHEETING, SHORING, AND BRACING1

10/22/2025421799502 · 120-31 199 STREETOpen ↗

▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1

08/16/2018321645797 · 361 HANCOCK STREETOpen ↗

▸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

▸BISTPP1: TENANT PROTECTION PLAN1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISTenant Protection Plan and Notes1

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

▸Environmental & Asbestos4

▸BISASBESTOS: CERTIFICATION (DEP ACP5)3

09/05/2017321645797 · 361 HANCOCK STREETOpen ↗

Showing 1 of 3 on file for this type

▸DOB NOWDEP ACP-5: Asbestos Assessment Report1

08/13/2026B00677908-I1 · 4202 CHURCH AVENUEOpen ↗

▸Energy Compliance28

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY7

02/21/2024440773995 · 48-48 208 STREETOpen ↗

02/16/2024440773995 · 48-48 208 STREETOpen ↗

02/15/2024440773995 · 48-48 208 STREETOpen ↗

Showing 3 of 7 on file for this type

▸BISAS-BUILT ENERGY ANALYSIS5

02/21/2024440773995 · 48-48 208 STREETOpen ↗

02/16/2024440773995 · 48-48 208 STREETOpen ↗

Showing 3 of 5 on file for this type

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS3

08/09/2018321645797 · 361 HANCOCK STREETOpen ↗

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

Showing 2 of 3 on file for this type

▸BISPTA4: SOLAR TAX ABATEMENT APPLICATION (FINAL)2

02/21/2024440773995 · 48-48 208 STREETOpen ↗

02/16/2024440773995 · 48-48 208 STREETOpen ↗

▸BISAIR SEALING AND INSULATION - VISUAL1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸BISINTERIOR LIGHTING POWER1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISFENESTRATION U-FACTOR & PRODUCT RATING1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISFENESTRATION AREAS1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISPTA4: SOLAR TAX ABATEMENT APPLICATION (PRELIMINARY)1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 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

▸BISENERGY CODE COMPLIANCE INSPECTIONS1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISELECTRICAL ENERGY CONSUMPTION1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISFENESTRATION AIR LEAKAGE1

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 Reports23

▸BISTECHNICAL REPORT: RESPONSIBILITY13

10/22/2025421799502 · 120-31 199 STREETOpen ↗

10/21/2025421799502 · 120-31 199 STREETOpen ↗

02/21/2024440773995 · 48-48 208 STREETOpen ↗

Showing 3 of 13 on file for this type

▸BISCONCRETE - CAST-IN-PLACE1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISSTRUCTURAL STABILITY - ALTERATIONS OF EXISTING BUILDINGS1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISFIRE-RESISTIVE RATED CONSTRUCTION1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISFOOTING AND FOUNDATION INSPECTION1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISSOIL REPORT1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸BISSOIL PERC. TEST-PVT ON-SITE STORM WATER DRAINAGE DISPOSAL SYS & DET. FACL.1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISSUBGRADE INSP / SOILS-SITE PREP1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸BISTECHNICAL REPORT: SOIL INSPECTION1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISFRAME (2008)/STRUCTURAL WOOD FRAME (2014) INSPECTION1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

▸Approvals, Objections & Sign-offs8

▸BISLETTERS - SUPPORTING DOCUMENTATION5

02/28/2024440773995 · 48-48 208 STREETOpen ↗

Showing 1 of 5 on file for this type

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1

02/28/2024440773995 · 48-48 208 STREETOpen ↗

▸BISPTA4: TAX ABATEMENT ELIGIBILITY APPROVAL1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISFINAL1

01/28/2026421799502 · 120-31 199 STREETOpen ↗

▸Cost, Insurance & Ownership12

▸BISCOST AFFIDAVIT10

02/21/2024440773995 · 48-48 208 STREETOpen ↗

02/16/2024440773995 · 48-48 208 STREETOpen ↗

Showing 3 of 10 on file for this type

▸BISCOST AFFIDAVIT (FINAL): PW31

01/21/2026421799502 · 120-31 199 STREETOpen ↗

▸BISCOST AFFIDAVIT ESTIMATE: (PW3)1

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▸Filing & Intake Forms5

▸BISEFILING COVER SHEET4

01/12/2018321645797 · 361 HANCOCK STREETOpen ↗

07/07/2017321615524 · 186 CONKLIN AVENUEOpen ↗

Showing 2 of 4 on file for this type

▸BISEFILING JOB APPLICATION COVER SHEET1

On file, but not among the 200 most recently loaded documents for this source.

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▸Other Documents5

▸BISSUSTAINABLE ROOF ZONE FORM1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISPERMANENT CERTIFICATE1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1

07/01/2019321645797 · 361 HANCOCK STREETOpen ↗

▸BISPROTECTION OF EXPOSED FOUNDATION INSULATION1

On file, but not among the 200 most recently loaded documents for this source.

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▸BISPVT ON-SITE STORM WATER DISPOSAL SYSTEMS & DETENTION FACL., INSTALLATION1

10/20/2025421799502 · 120-31 199 STREETOpen ↗

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