Additions and square-footage expansions permitted in New York City. These are the largest residential projects a homeowner undertakes and carry the highest declared values.
25 permits listed
$9,426,699 declared value
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Recent permits
420 EAST 67 STREET (MANHATTAN)$1,599,281
Modification/additions to existing HVAC system, associated ductwork and piping for Rockefeller Research Lab (Pavilion Enabling) parking garage alteration as per plans filed herewith. No change in use, egress or occupancy
Issued 2026-09-15 · mechanical · issued
1106 GARRISON AVENUE (BRONX)$900,000
PROPOSED ADDITIONAL OFFICE FOR HORIZONTAL ENLARGEMENT, INTERIOR RENOVATION, HVAC WORK & STRUCTURAL FRAMING AND MASONRY FOR 2ND FL & ROF. NO CHANGE IN USE, EGRESS OR OCCUPANCY
Issued 2026-09-11 · mechanical · issued
85-24 ETON STREET (QUEENS)$899,700
PROPOSED HORIZONTAL AND VERTICAL ADDITION TO AN EXISTING 1 1/2 STORY ONE FAMILY DWELLING AND TO RENOVATE INTERIOR.
Issued 2026-09-16 · addition alteration · issued
121 WEST 11 STREET (MANHATTAN)$649,947
Existing multiple dwelling residence to be converted to single family residence. Proposed renovation and bulkhead addition to converted single family residence. New certificate of occupancy to be obtained.
Issued 2026-09-09 · addition alteration · issued
1260 FRANKLIN AVENUE (BRONX)$600,600
Renovate Nurse's room, Add ADA compliant student toilet.
Issued 2026-09-11 · addition alteration · issued
287 COURT STREET (BROOKLYN)$474,000
THREE STORY HORIZONTAL REAR EXTENSION. ADDITION OF 4TH FLOOR ROOFTOP & BULKHEAD. INTERIOR RENO OF ENTIRE BUILDING. CHANGE OF USE APPLICATION. REQUESTING NEW CO.
Issued 2026-09-15 · addition alteration · issued
80-27 257 STREET (QUEENS)$451,650
Horizontal extension and 2nd floor addition of existing one-family house as per drawings herewith filed to obtain certificate of occupancy.
Issued 2026-09-15 · addition alteration · issued
107-15 70 ROAD (QUEENS)$450,000
Filing Structural work associated with the additions and alterations to replace emergency generator as per plans file herewith,. No change of use, occupancy or egress under this application.
Issued 2026-09-11 · addition alteration · issued
50 HAWTHORNE AVENUE (STATEN ISLAND)$444,529
Alteration of an existing residence including the addition of a second dwelling unit at new second floor
Issued 2026-09-11 · addition alteration · issued
3117 AVENUE W (BROOKLYN)$415,927
Full renovation of existing library. New floor, new bookshelves/millwork, adding soffits. Slight modification to existing ductwork. Additional electrical receptacles added throughout.
Issued 2026-09-10 · addition alteration · issued
1040 GRAND CONCOURSE (BRONX)$397,684
PL application filed in-conjunction with alt. 1. Addition to museum. new RD & associated storm piping for renovated portion. new gas service and piping serving ex. equipment. modification of ex. sanitary and domestic
Issued 2026-09-16 · plumbing · issued
47 CHRYSTIE STREET (MANHATTAN)$280,000
INSTALLATION OF LU/LA LIFT FROM 1ST TO 2ND FLOOR. CONVERSION OF CELLAR AND 2ND FLOOR SPACES TO ASSEMBLY. ADDITIONAL BATHROOMS AND LU/LA LIFT. NO CHANGE TO ROOF OCCUPANCY.
Issued 2026-09-08 · addition alteration · issued
53-03 64 STREET (QUEENS)$260,000
INTERIOR RENOVATION OF AN EXISTING APARTMENT WITHIN A 2-FAMILY RESIDENCE ADDITION OF A ROOFTOP BULKHEAD & SELECTIVE DEMOLITION OF NON-LOAD BEARING/FIRERATED INTERIOR PARTITIONS, COMPLETE RENOVATION OF THE KITCHEN &am
Issued 2026-09-11 · addition alteration · issued
211 AINSLIE STREET (BROOKLYN)$200,000
Interior renovations on 2nd floor for partial ceiling replacement, minor partition work, and the addition of a classroom, bathroom, and closet as per plans filed herewith. No change in Use, Egress or Occupancy.
Issued 2026-09-11 · addition alteration · issued
66 GREENE AVENUE (BROOKLYN)$181,250
Respectfully request to propose rear yard addition.
Issued 2026-09-10 · addition alteration · issued
2800P VICTORY BOULEVARD (STATEN ISLAND)$175,541
Renovate restrooms on the 1st floor including addition of fixtures, new partitions and finishes ; related work on cellar and roof; all work as per plans filed herewith.
Issued 2026-09-10 · addition alteration · issued
121-34 237 STREET (QUEENS)$175,400
Proposed 2nd floor addition, interior and exterior renovation to an existing one family dwelling.
Issued 2026-09-14 · addition alteration · issued
4885 ARTHUR KILL ROAD (STATEN ISLAND)$151,200
Interior tenants build out, interior demolition, new partitions, flooring, doors and new ceilings. Misc. additional work.
Issued 2026-09-16 · addition alteration · issued
137 BACHE AVENUE (STATEN ISLAND)$116,000
ONE-STORY HORIZONTAL ADDITION TO AN EXISTING ONE-FAMILY RESIDENCE.
Issued 2026-09-08 · other · issued
113-11 LIBERTY AVENUE (QUEENS)$105,550
ALT-1 FILING TO ENLARGE THE 1ST FLOOR AND ADD A NEW THIRD FLOOR.
Issued 2026-09-14 · addition alteration · issued
1370 KEARNEY AVENUE (BRONX)$102,440
FRONT AND REAR 2ND FL HORIZONTAL ENLARGEMENT OF (1) FAMILY HOME, NEW INTERIOR PARTITIONS, AND INTERIOR FINISHES THROUGHOUT 1RST AND 2ND FL. THE 2ND FL ENLARGEMENT IS FOR ADDITIONAL 394 SF AS PER PLANS. CORRECTING ECB VI
Issued 2026-09-15 · addition alteration · issued
1681 42 STREET (BROOKLYN)$100,000
Proposed 2 story addition as per plans filed.
Issued 2026-09-10 · addition alteration · issued
291 GRAND STREET (BROOKLYN)$100,000
STRUCTURAL WORK IN CONJUNCTION WITH RENOVATION & ADDITION TO EXISTING MIXED USE BUILDING. RE-FRAME EXISTING BUILDING AS NOTED ON DRAWINGS. NEW STRUCTURAL FRAMING FOR NEW HORIZONTAL AND VERTICAL BUILDING ADDITIONS. FO
Issued 2026-09-09 · addition alteration · issued
291 GRAND STREET (BROOKLYN)$100,000
MECHANICAL WORK FILED IN CONJUNCTION WITH RENOVATION AND BUILDING ADDITION. INSTALL SPLIT A/C SYSTEM, TOILET & KITCHEN EXHAUST. INSTALL 1ST FL COMMERCIAL RESTAURANT KITCHEN EXHAUST HOOD AND VENTILATION. INSTALL ERV U
Issued 2026-09-09 · mechanical · issued
59 HUDSON AVENUE (BROOKLYN)$96,000
INSTALL NEW ADDITIONAL BATHROOM AS PER 2ND,3RDAND 4TH FLOOR PLAN & NEW 3 HOT WATER TANK ATCELLAR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Issued 2026-09-15 · plumbing · issued
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