Architectural Services on Long Island and in New York City

Baca Williamson Architects works with homeowners, business owners, landlords, tenants, property buyers and developers on practical architecture, zoning and building department issues. We help with residential additions and dormers, interior renovations, commercial tenant fit-outs, change-of-use reviews, building permits, legalization work, open permits, violations, certificates of occupancy, telecom spaces, infrastructure projects and data center support.

Start with the service closest to your project: Commercial Projects | Residential Projects | Permits, Zoning & Approvals | Infrastructure & Data Centers | Contact BAWI

If you are not sure where your project fits, contact us and tell us the property address, the town or city, and what you are trying to build, legalize or occupy.

Looking for a specific kind of help?

Violations & Legalizations

Home Additions & Dormers

Building Violations & Stop-Work Orders

Maintain Filings

Legalization of Existing Work

More services

Certificates of Occupancy & Open Permits

Zoning Variances & Board of Appeals

Commercial Tenant Fit-Outs & Change of Use

Pre-Purchase Zoning & Feasibility Reviews

Finished Basements & Cellar Entrances

Accessory Apartments & Mother-Daughter Filings

Restaurant & Retail Architecture