City residence, one family

21 LINDEN BOULEVARD

BROOKLYN · BIN 3116632

💬 Discuss this project

1899Year Built

3Stories

A4Building Class

R6BZoning

2,435 sfGross Floor Area

1Units

Rent Stabilized9 Open Violations ▸FDNY Report ↗

City residence, one family · 1,581 sf lot · 1.54 FAR built · Flood zone X

Locations of Work

ArchitectureStructural

Roof3p · 1 filing · 7 docs

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
RESIDENCE	1	03/21/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
06/18/2015	$900K	—	21 LINDEN BOULEVARD REALTY LLC → Private party	$370/sf building
02/12/2015	$710K	—	SRL REAL ESTATE SOLUTION LLC → 21 LINDEN BOULEVARD REALTY LLC	$292/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
NY BUILDING ASSOCIATES INC	1	12/30/2025

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
BROOKLYN SOLARWORKS	1	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
BROOKLYN SOLARWORKS LLC	General Contractor	1	04/09/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
NKM ENGINEERING PLLC	6244	1	12/30/2025

Building Lifecycle

All (23)Filed (1)Permit Issued (1)Signed Off (1)Violation (15)Special Inspection (5)

04/30/2026

Signed off — Alteration

INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.

B01340797-I1

01/07/2026

Permit issued — Solar

B01340797-I1-SL

12/30/2025

Filed — Alteration

INSTALLATION OF SOLAR PV SYSTEM. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.

B01340797-I1

12/30/2025

Special inspection requirement — Structural Stability – Alterations of existing buildings

NARESH MAHANGU

12/30/2025

Special inspection requirement — Fire-Resistant Penetrations and Joints

NARESH MAHANGU

12/30/2025

Special inspection requirement — Energy Code Compliance Inspections

NARESH MAHANGU

12/30/2025

Special inspection requirement — Final

NARESH MAHANGU

12/30/2025

Special inspection requirement — Air barrier - visual inspection

NARESH MAHANGU

10/30/2019

Violation issued (HPD, closed)

10/18/2018

Violation issued (HPD, closed)

11/27/2017

Violation issued (HPD, closed)

11/10/2016

Violation issued (HPD, closed)

10/09/2015

Violation issued (HPD, closed)

02/23/2015

Violation issued (HPD, closed)

11/22/2011

Violation issued (HPD, open)

09/12/2007

Violation issued (HPD, open)

09/12/2007

Violation issued (HPD, open)

09/05/2007

Violation issued (HPD, open)

09/05/2007

Violation issued (HPD, open)

07/24/2001

Violation issued (HPD, open)

05/18/1992

Violation issued (HPD, open)

03/18/1987

Violation issued (HPD, open)

03/18/1987

Violation issued (HPD, open)

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Solar	Signed-off	BROOKLYN SOLARWORKS LLC	01/07/2026
BIS	—	ISSUED	M SQUARE BUILDERS LLC	08/19/2019
BIS	PL	ISSUED	ORBIT PLBG & HTG INC	04/04/2019
BIS	—	ISSUED	M SQUARE BUILDERS LLC	10/19/2018
BIS	SP	ISSUED	ORBIT SPRINKLER CORP	07/19/2018
BIS	PL	ISSUED	ORBIT PLBG & HTG INC	07/19/2018
BIS	—	ISSUED	M SQUARE BUILDERS LLC	12/15/2017
BIS	PL	ISSUED	ORBIT PLBG & HTG INC	10/05/2017
BIS	—	ISSUED	M SQUARE BUILDERS LLC	03/09/2017
BIS	SP	ISSUED	ORBIT SPRINKLER CORP	03/03/2017
BIS	PL	ISSUED	ORBIT PLBG & HTG INC	02/01/2017
BIS	EQ	ISSUED	INTERSYSTEM S&S CORP	10/28/2016
BIS	EQ	ISSUED	INTERSYSTEM S&S CORP	10/27/2016
BIS	PL	ISSUED	ORBIT PLBG & HTG INC	10/05/2016
BIS	—	ISSUED	M SQUARE BUILDERS LLC	04/25/2016
BIS	EQ	RE-ISSUED	M SQUARE BUILDERS LLC	12/22/2015

1 project · most recent 12/30/2025

Filed	Status	Contractor	Scope
12/30/2025	Complete	BROOKYLN SOLARWORKS, LLC	—

1 project · most recent 12/30/2025

Filed	Status	Contractor	Scope
12/30/2025	Signed-off	BROOKLYN SOLARWORKS LLC	32 panels, 14.08 kw, 722 roof_area_sqft

▾Special Inspection Requirements (DOB NOW) — 5

Date	Requirement	Inspector	Role
12/30/2025	Structural Stability – Alterations of existing buildings	NARESH MAHANGU	special
12/30/2025	Fire-Resistant Penetrations and Joints	NARESH MAHANGU	special
12/30/2025	Energy Code Compliance Inspections	NARESH MAHANGU	progress
12/30/2025	Final	NARESH MAHANGU	progress
12/30/2025	Air barrier - visual inspection	NARESH MAHANGU	energy_progress

▾Documents — 153 on file (BIS + DOB NOW)

▸Plans & Drawings1

▸DOB NOWPlans/Sketch1

08/19/2026B01340797-I1Request digital key ↗

▸Applications & Permits30

▸BISWORK PERMIT APPLICATION11

08/22/2019321246718Open ↗

10/19/2018321246718Open ↗

12/22/2017321246718Open ↗

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▸BISPLAN / WORK APPROVAL APPLICATION11

11/07/2019340337086Open ↗

09/11/2019321246718Open ↗

05/20/2019321246718Open ↗

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▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION7

08/28/2019321246718Open ↗

05/06/2019321246718Open ↗

07/03/2018340383720Open ↗

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▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

05/23/2019321246718Open ↗

▸Seals & Professional Certifications39

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION18

02/27/2020321246718Open ↗

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▸BISPROFESSIONAL CERTIFICATION STATEMENT6

10/26/2016340436709Open ↗

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▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY4

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▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION4

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▸BISPROFESSIONAL CERTIFIED CHECKLIST3

05/20/2019321246718Open ↗

07/05/2018340383720Open ↗

02/19/2016321246718Open ↗

▸DOB NOWProgress Inspector Seal & Signature2

08/31/2026B01340797-I1Open ↗

▸DOB NOWDPL-1: Design Professional Seal & Signature1

08/19/2026B01340797-I1Open ↗

▸DOB NOWSpecial Inspector Seal & Signature1

08/31/2026B01340797-I1Open ↗

▸Trade Schedules & Equipment12

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE4

09/11/2019321246718Open ↗

07/05/2018340383720Open ↗

06/02/2017340383720Open ↗

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▸BISPLUMBING - SUPPORTING DOCUMENTATION4

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06/09/2016340383720Open ↗

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▸BISEQUIPMENT USE APPLICATION/PERMIT1

02/27/2020321246718Open ↗

▸BISEQUIPMENT USE PERMITS1

02/27/2020321246718Open ↗

▸BISSCHEDULE B - PLUMBING1

05/19/2016340383720Open ↗

▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1

02/27/2020321246718Open ↗

▸Safety & Tenant Protection6

▸BISTENANT PROTECTION PLAN AND NOTES3

10/26/2016340436709Open ↗

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05/19/2016340383720Open ↗

▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE1

04/25/2016321246718Open ↗

▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1

04/25/2016321246718Open ↗

▸BISSTREET TREE CHECKLIST1

02/19/2016321246718Open ↗

▸Environmental & Asbestos6

▸BISDEP ASBESTOS PROJECT COMPLETION FORM3

05/19/2016340383720Open ↗

04/25/2016321246718Open ↗

▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

10/26/2016340436709Open ↗

▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1

05/19/2016340383720Open ↗

▸DOB NOWDEP ACP-5: Asbestos Assessment Report1

08/19/2026B01340797-I1Open ↗

▸Energy Compliance5

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS3

02/27/2020321246718Open ↗

04/25/2016321246718Open ↗

02/19/2016321246718Open ↗

▸BISAS-BUILT ENERGY ANALYSIS1

02/27/2020321246718Open ↗

▸BISELECTRICAL APPLICATION FOR SIDEWALK SHED LIGHTING1

10/24/2016340436371Open ↗

▸Inspections & Test Reports7

▸BISTECHNICAL REPORT: RESPONSIBILITY5

10/26/2016340436709Open ↗

10/24/2016340436371Open ↗

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▸BISDIR-14 ID OF RESPONSIBILITY (TR1)1

12/18/2015340337086Open ↗

▸BISDEP Hydrant Flow Test Letter1

06/13/2016340383720Open ↗

▸Approvals, Objections & Sign-offs13

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST9

02/27/2020321246718Open ↗

12/09/2019340383720Open ↗

11/20/2019340337086Open ↗

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▸BISLETTERS - SUPPORTING DOCUMENTATION1

05/19/2016340383720Open ↗

▸BISSCHEDULE A - OCCUPANCY / USE1

02/19/2016321246718Open ↗

▸BISADMINISTRATIVE OBJECTIONS1

02/19/2016321246718Open ↗

▸DOB NOWUtility Company Final Acceptance Letter1

08/19/2026B01340797-I1Open ↗

▸Cost, Insurance & Ownership9

▸BISCOST AFFIDAVIT4

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▸BISPROJECT-SPECIFIC GL INSURANCE3

08/22/2019321246718Open ↗

10/19/2018321246718Open ↗

12/29/2017321246718Open ↗

▸BISAcord 25 (Acord Certificate of Liability Insurance)2

10/19/2018321246718Open ↗

12/29/2017321246718Open ↗

▸Filing & Intake Forms21

▸BISBOROUGH INTAKE FORM8

02/27/2020321246718Open ↗

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11/20/2019340337086Open ↗

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▸BISADDITIONAL INFORMATION7

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▸BISEFILING JOB APPLICATION COVER SHEET4

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▸BISEFILING COVER SHEET2

02/19/2016321246718Open ↗

▸Other Documents4

▸BISPLOT DIAGRAM2

02/27/2020321246718Open ↗

02/19/2016321246718Open ↗

▸BISACCESSIBILITY WAIVER (PEO1)1

08/22/2019321246718Open ↗

▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1

10/28/2016340436371Open ↗