One family attached or semi-detached

123 KING STREET

BROOKLYN · BIN 3418232

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2016Year Built

3Stories

A5Building Class

R5Zoning

—Gross Floor Area

1Units

FDNY Report ↗

One family attached or semi-detached · Owner of record: MAINSAIL LLC · 1.56 FAR built · Flood zone X500

Locations of Work

No floor-level scope or drawing coverage on file for this building.

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
MAINSAIL LLC	1	03/22/2026
KING EQUITY PARTNERS	14	03/21/2026

Nothing on file for this building.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
BIS	PL	ISSUED	G.N.T. MECHANICAL, LLC	03/26/2018
BIS	—	ISSUED	HAILEY DEVELOPMENT GROUP	04/24/2017
BIS	PL	ISSUED	G.N.T. MECHANICAL, LLC	02/23/2017
BIS	PL	ISSUED	G.N.T. MECHANICAL, LLC	08/25/2016
BIS	—	ISSUED	HAILEY DEVELOPMENT GROUP	06/14/2016
BIS	—	ISSUED	HAILEY DEVELOPMENT GROUP	05/04/2016
BIS	CC	ISSUED	HAILEY DEVELOPMENT GROUP	01/19/2016
BIS	—	ISSUED	HAILEY DEVELOPMENT GROUP	07/28/2015

Nothing on file for this building.

▾Documents — 146 on file (BIS + DOB NOW)

▸Applications & Permits25

▸BISPLAN / WORK APPROVAL APPLICATION16

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▸BISWORK PERMIT APPLICATION8

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▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

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▸Zoning, Tax Lot & Property Records7

▸BISADDRESS: NEW HOUSE NUMBER APPROVED2

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▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

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▸BISRESTRICTION: RESTRICTIVE DECLARATION1

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▸BISEASEMENT AND RESTRICTIVE DECLARATIONS - SUPPPORTING DOCUMENTATION1

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▸BISZONING DIAGRAM1

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▸BISZONING EXHIBIT I: CERTIFICATION1

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▸Seals & Professional Certifications16

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION15

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▸BISAPPLICANT OWNER SIGNATURE1

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▸Trade Schedules & Equipment16

▸BISSCHEDULE B - PLUMBING9

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▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION2

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▸BISSEWER CONNECTION:SD1&21

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▸BISEQUIPMENT USE APPLICATION/PERMIT1

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▸BISEQUIPMENT USE PERMITS1

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▸BISDEP SANITARY SEWER CERTIFICATION (HCP/SCP)1

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▸BISSEWER CUT-OFF1

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▸Safety & Tenant Protection9

▸BISSTREET TREES: RECEIPT OF STREET TREES SITE PLAN3

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▸BISSTREET TREE SUPPORTING DOCUMENT3

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▸BISSTREET TREE CHECKLIST2

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▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE1

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▸Energy Compliance5

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS2

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▸BISAS-BUILT ENERGY ANALYSIS2

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▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY1

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▸Inspections & Test Reports13

▸BISTECHNICAL REPORT: RESPONSIBILITY4

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▸BISMASONRY MANUFACTURER'S STATEMENT-FORM 10H2

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▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER2

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▸BISTECHNICAL REPORT: PILE DRIVING1

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▸BISINSPECTION REPORT - SUPPORTING DOCUMENTATION1

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▸BISTR2: CONCRETE TEST CYLINDERS TECHNICAL REPORT1

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▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX1

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▸BISTECHNICAL REPORT: SOIL INSPECTION1

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▸Approvals, Objections & Sign-offs20

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST12

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▸BISLETTERS - SUPPORTING DOCUMENTATION3

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▸BISSCHEDULE A - OCCUPANCY / USE3

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▸BISCONSTRUCTION CODE DETERMINATION2

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▸Cost, Insurance & Ownership2

▸BISSTEEL AFFIDAVIT- FINAL2

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▸Filing & Intake Forms27

▸BISBOROUGH INTAKE FORM11

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▸BISADDITIONAL INFORMATION11

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▸BISEFILING COVER SHEET4

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▸BISEFILING JOB APPLICATION COVER SHEET1

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▸Other Documents6

▸BISPLOT DIAGRAM3

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▸BISFEMA ELEVATION CERT (086-0-33)/ FLOODPROOFING CERT (086-0-34)1

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▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1

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▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1

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