San Gabriel Valley Communities.

Cities of the SGV.

• Alhambra — Inner-SGV city west of San Gabriel and South Pasadena. Adopted its first historic preservation ordinance in October 2025 — Mills Act program is new but designation eligibility is active.
• Altadena — Unincorporated foothill community north of Pasadena. Eaton Fire recovery is ongoing as of mid-2026 — buyer and seller activity here remains sensitive to fire-rebuilding context. Architecturally significant inventory remains substantial where unaffected.
• Arcadia — Home of Santa Anita Park and the LA County Arboretum. Substantial historic and mid-century inventory in the older neighborhoods south and west of Santa Anita.
• Claremont — The Claremont Colleges anchor this community at the eastern edge of LA County. Historic Village, tree-lined residential streets, and substantial early-20th-century architectural inventory.
• Covina — Inland-east SGV city with active historic preservation program. Listed on California OHP's Mills Act jurisdictions roster.
• Glendora — Foothill community at the eastern SGV, with active historic preservation program and notable Craftsman and Spanish Revival inventory in the older neighborhoods.
• La Cañada Flintridge — Foothill community at the western edge of the SGV with strong school district, JPL employer gravity, and a notable inventory of architecturally significant homes including works by Wallace Neff.
• Monrovia — Foothill community east of Arcadia with a deep Craftsman bungalow inventory and an active historic preservation program.
• Monterey Park — East of Alhambra. Predominantly mid-century postwar construction. No active historic preservation program.
• Pasadena — The Crown City — anchor of the San Gabriel Valley's historic residential market. Home to the Tournament of Roses, the Norton Simon Museum, Caltech, and the largest concentration of intact early-20th-century Craftsman bungalows in California.
• Rosemead — Southwest of San Gabriel. Predominantly postwar tract construction. No active historic preservation program.
• San Gabriel — Named for Mission San Gabriel Arcángel (1771). Historic core of the SGV with significant Spanish Colonial Revival and Monterey Colonial inventory.
• San Marino — Estate-scale residential city anchored by The Huntington Library, Art Museum, and Botanical Gardens. Long the SGV's highest-priced residential market, with significant Wallace Neff, Roland Coate, and other prewar estate architecture.
• Sierra Madre — Small-town foothill community at the base of the San Gabriels. Sierra Madre Canyon contains the SGV's most distinctive bungalow-court hillside concentration.
• South Pasadena — Independent enclave between Pasadena and Highland Park, known for its tree-canopied historic streets, Mission Street commercial district, Oaklawn Historic District, and award-winning schools.
• Temple City — Suburban city east of San Gabriel, no formal historic preservation program. Architectural inventory mainly mid-century postwar tract with selected period homes.
• West Covina — East of Covina. Historic Resources Survey completed in 2006 but no historic preservation ordinance adopted; Mills Act not currently available.