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Mechanical SystemsQueensPermit issued

Home Extension and ADU Project at 39-18 221 Street, Queens

39-18 221 STREET, Queens, 11361 · Bayside

Winston

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Reported project cost

$1,450,764

As declared on the permit filing. Structural.

Issued
June 10, 2026
Expires
February 24, 2027
License
General Contractor

What was permitted

This permit is for a significant expansion of an existing one-family house in Bayside, Queens, involving both vertical and horizontal extensions. The project also includes the addition of an Accessory Dwelling Unit (ADU), which will require a new Certificate of Occupancy.

Issued on June 10, 2026, this substantial project has an estimated cost of $1,450,764 and is being handled by STREAM ROCK CONTSRUCTION*. This indicates a major investment in expanding residential living space and potentially increasing property value.

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View the official permit record

Tracking number, work description, cost and dates

Tracking number578194403
Work permit #Q01308741-I1-FO-EA
Job filing number—
Work typeStructural
StatusPermit Issued
Job descriptionVERTICAL & HORIZONTAL EXTENSION OF EXISTING ONE FAMILY HOUSE + 1 ADU. OBTAIN NEW C OF O
Floor / unitCellar, Floor Number(s) 1, Floor Number(s) 1, Floor Number(s) 2, Attic
Estimated cost$1,450,764
ApprovedMay 1, 2026
IssuedJune 10, 2026
ExpiresFebruary 24, 2027
BBL—
BIN—

Property owner

N/A

Ai Qiu Zhang

Related searches

mechanical systemshome extensionADUBaysideQueensone-family house$1,450,764