For landlords
Tools
Guides
NYC buildings

Rent out a homeFind a tenant. Free, no account needed to start.
Sell a homeList a home for sale. No account needed to start.
Post what I’m looking forTell owners what you need.

HomeNYC buildingsSearch

Results for “MM 21 HOLDING LLC”

Address, owner or BBLBoroughZIP code

1 properties found

43-10 21 StreetQueens 11101 · Factory / industrial · Built 1931Mm 21 Holding LLC

roofy

Roofy is a free property platform for anyone, anywhere. List homes, find tenants or buyers, request and verify documents, sign leases online and track every step. In New York City, Roofy also explains the public record of every building.

Homes

Homes for rent
Homes for sale
People looking for a place
List a home free
Browse by city

For you

Renters
Buyers
Landlords
Sellers

Features

Rental applications
Document requests
Employment verification
E-sign leases
Templates & checklists

Resources

Housing calculators
Guides
How Roofy is free
Staying safe

NYC building records

Building lookup
Neighborhoods
Most-violated buildings
NYC data reports
NYC data sources

Boroughs: Manhattan · Brooklyn · Queens · Bronx · Staten Island

Roofy

About Roofy
Privacy
Terms

© 2026 Roofy.io · Free to use, supported by ads. NYC building records come from NYC Open Data (HPD, DOB, DOF, DCP PLUTO) and can lag official sources; confirm with the issuing agency before relying on them.