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General ConstructionManhattanPermit issued

Rear Enlargement at 614 West 146 Street, Manhattan

614 WEST 146 STREET, Manhattan, 10031 · Hamilton Heights-Sugar Hill

Winston

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Reported project cost

$160,000

As declared on the permit filing. General Construction.

Issued
July 27, 2026
Expires
July 26, 2027
License
General Contractor

What was permitted

This project involves a significant rear enlargement of an existing building, adding approximately 800 square feet to the property located in the Hamilton Heights-Sugar Hill neighborhood of Manhattan. Interior renovations are being handled under a separate application.

The permit for this structural enlargement was issued on July 27, 2026, with an estimated project cost of $160,000. ON SITE NYC INC is the General Contractor for this expansion, which does not alter the building's use, egress, or occupancy.

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View the official permit record

Tracking number, work description, cost and dates

Tracking number690309850
Work permit #M01314558-I1-GC
Job filing number—
Work typeGeneral Construction
StatusPermit Issued
Job descriptionPropose rear enlargement (approx. 800 SF) to existing building. Interior renovation under separate Alt-2 application (Job# M01228024-l1).No overlap in scope.
Floor / unitCellar, Basement, Floor Number(s) 1, Floor Number(s) 2, Floor Number(s) 3, Floor Number(s) 4
Estimated cost$160,000
ApprovedDecember 11, 2025
IssuedJuly 27, 2026
ExpiresJuly 26, 2027
BBL—
BIN—

Property owner

Not Applicable

Jungeun Park

Related searches

rear enlargementbuilding expansionHamilton Heights-Sugar HillManhattanbuilding permitstructural addition$160,000 project cost