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Permit #M01328123-S2

Plumbing Permit — 412 WEST 21 STREET

Manhattan, NY 10011Tuesday, February 17, 2026NYC DOB NOW
Permit Type

Plumbing

Estimated Value

$12,500

Contractor

A & M Warshaw Plbg & Htg

Property Owner

Matthew Riethmiller

County

New York County

Work Description

Kohne hall - modification of plumbing piping.

Other permits at this address

7 other permits at 412 WEST 21 STREET. Electrical, plumbing, and HVAC on the same property usually share a general contractor.

Roofing$111,600
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - facade restoration including localized brick and brownstone masonry repairs, minor roof maintenance, stained and leaded-glass window restoration. no change in use, egress or occupancy.

Nova Construction ServiceMatthew Riethmiller6d ago#M01289740-I1
Roofing$111,600
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - facade restoration including localized brick and brownstone masonry repairs, minor roof maintenance, stained and leaded-glass window restoration. no change in use, egress or occupancy.

Nova Construction ServiceMatthew Riethmiller6d ago#M01289740-I1
Plumbing$12,500
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - modification of plumbing piping.

A & M Warshaw Plbg & HtgMatthew RiethmillerFeb 18, 2026#M01328123-S2
HVAC$15,000
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - modification of hvac.

Consigli Construction CoMatthew RiethmillerFeb 10, 2026#M01328123-S1
HVAC$15,000
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - modification of hvac.

Consigli Construction CoMatthew RiethmillerFeb 9, 2026#M01328123-S1
Other$80,000
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - removal and installation of interior partitions for reconfiguration of student lounge, removal of closets in dormitory rooms, and patching floor at wall removal no change in use, egress o...

Consigli Construction CoMatthew RiethmillerFeb 2, 2026#M01328123-I1
Other$80,000
412 WEST 21 STREET, Manhattan, NY 10011

Kohne hall - removal and installation of interior partitions for reconfiguration of student lounge, removal of closets in dormitory rooms, and patching floor at wall removal no change in use, egress o...

Consigli Construction CoMatthew RiethmillerFeb 1, 2026#M01328123-I1

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