Construction and rebuilds in San Marcos

What is different about San Marcos

• Permits come from the City of San Marcos Development Services Department. San Marcos is inland and not in the Coastal Zone.Source: City of San Marcos Development Services
• About 43% of the roughly 35,100 housing units in ZIPs 92069 and 92078 were built before 1990.Source: U.S. Census Bureau, ACS 2024 5-year, tables B25034 and B25003 (via Census Reporter)
• The May 2014 Cocos Fire burned homes in San Marcos.Source: CAL FIRE incident records

San Marcos has grown fast in the last few decades around Cal State San Marcos and the Highway 78 corridor, so its housing is younger than Vista or Escondido: a bit under half predates 1990. Older homes cluster near the center, while newer hillside neighborhoods fill the edges. The mix means some jobs are about repairing old systems and others are about adding rooms to homes still in good shape.

The Cocos Fire of 2014 is a reminder that hillside and canyon-edge neighborhoods here are mapped as fire hazard areas. A rebuild or major addition in those zones follows the wildland-urban interface code. No coastal permit applies. The city's Development Services office reviews plans, and ADU applications go through the state's 60-day review rule for complete applications. We start by confirming the lot's zoning and any HOA requirements, then draw only what fits.