South Bay city hub
Mountain View has useful public ADU standards and preapproved-program material, making it a good city for source-backed planning pages.
Santa Clara CountyProject demand
Mountain View publishes ADU zoning standards, legalization guidance, and preapproved ADU program information.
Providers
Shortlist seed 81 ADU-focused design-build comparison benchmark
ADU-focused Bay Area company with public positioning around design, permitting, and building ADUs.
Partner disclosed 79 Budget-first ADU planning and design-build path
Budget-first South Bay and Peninsula residential design-build team positioned for ADU planning, permit drawings, garage conversions, and construction handoff.
Shortlist seed 67 Prefab ADU comparison
Prefab ADU provider with public Bay Area ADU builder positioning and manufactured-home style offerings.
Public source 71 Full-service ADU company comparison
Bay Area ADU provider publicly positioned around full-service ADU solutions.
Public source 70 Custom ADU and local design-build comparison
Bay Area design-build construction company with public ADU content and local construction positioning.
Public source 66 ADU coordination and contractor path comparison
Bay Area/Northern California ADU coordination provider with public positioning around ADUs, JADUs, additions, and contractor coordination.
Official sources
Use official city resources as the source of truth before submitting plans.
City-service pages
This city has provider coverage but no dedicated city-service page yet.
FAQ
Start with ADU type, local experience, permit responsibility, drawings, budget assumptions, utility scope, and similar project examples in or near Mountain View.
Detached ADU, Attached ADU, Preapproved ADU, Legalization
Usually yes for serious pricing. Drawings make bids comparable and reduce expensive ambiguity.
