ZZA exists to build that chest — pairing globally certified supply chains with Northern California's finest craftsmanship, so every ADU, window and door we deliver holds a life worth keeping.
PROJECT · 01 / BAY AREAFrom a single premium window to a complete ADU delivered with permits — every path starts with the same designers and the same certified supply chain.
Design, permits, materials, and construction — one contract, one timeline, one accountable team. 450 to 1,200 sq ft.
NFRC-certified thermal-break aluminum and German uPVC systems. U-value 0.24–0.30. Spec'd for Title 24 without compromise.
Kitchen, bath, full-house renovations and second-story add-ons. Same designers, same supply chain, same single-pass inspection record.
Every window, every module, every drawing clears California's toughest codes — before it leaves the factory.
Independent energy performance certification for windows and doors. Every unit labeled and traceable.
CA Department of Housing & Community Development approval for prefabricated modules.
Full compliance with California's Building Energy Efficiency Standards.
Pick a city, set your lot size and build type. ZZA estimates monthly rent, 20-year appreciation, and annual ROI — instantly.
No handoffs between designer, supplier and builder. ZZA is all three.
3-minute questionnaire generates a binding ROI preview for your lot.
A dedicated architect delivers plans, structural set, and full CA permit package.
NFRC / HCD-approved materials delivered direct — cutting 40% off typical lead times.
California-licensed crews. Single-pass inspection record. Keys in your hand.
From single-family residences to new neighborhoods and interior environments — each project rendered, permitted and built by the same team.
A designer typically replies within one business day. For ADU projects, we'll follow up with a site-specific feasibility overview after your first message.
