San Diego New Construction 2026: Permits & OnePhase GC Guide

San Diego Home & ADU Construction | OnePhase General Contractor

OnePhase General Contractor — San Diego New Construction

Permit-aware planning and disciplined site management for homes, ADUs, commercial, and renovations.

San Diego new construction is increasingly permit-timeline driven—and the City is transparent about it. The Development Services Department publishes a weekly permit processing timeline snapshot showing approximate days for application setup, review, and issuance, which is essential for building realistic pre-con schedules and setting owner expectations.

Compliance timing matters in 2026: the City states the 2025 California Building Standards Code applies to projects submitted on or after January 1, 2026, and local amendments are expected to be in effect in March or April 2026. For both residential and commercial, aligning drawings/specs to the correct code cycle can reduce rechecks and prevent avoidable plan-check friction.

If speed is the constraint, San Diego offers optional “fast lane” paths. Express Plan Check is an optional program with review times typically 40%–50% faster than standard reviews (for eligible permits), and the City also lists quicker processing opportunities such as a streamlined 30-day review for qualifying housing projects under the Complete Communities Housing Solutions program. OnePhase General Contractor helps keep the entire workflow tight—scope, permit strategy, procurement, and field sequencing—so approvals and construction stay aligned from day one.