GGA Architecture, PLLC’s mission is underpinned by three guiding values: Design Excellence, Technical Expertise, and Respect for Architecture's contribution to a Sustainable Environment. Services: Architecture and Planning, Real Estate Development Consultants, Zoning - Air-Rights - Building Expansion, Historic Landmarks Restoration, Building Alteration and Readaptive Use, Contract and Residential Interiors, Townhouse Restorations, Building Envelope (L.L.#11/98) Engineering, NYC Energy Conservation Code Consulting.