Westmorland is the Imperial Valley’s smallest incorporated city — a one-stoplight farm town on State Route 86 whose downtown was substantially rebuilt after the 1981 earthquake damaged much of the commercial core. The housing stock is modest and functional: postwar bungalows and ranch homes on the town grid, older worker cottages, and rural properties on the outskirts, all set amid some of the valley’s most intensively farmed ground. Lots are typically simple and rectangular, and land is affordable enough that homeowners often have more yard than they need.
Detached ADUs up to 1,200 square feet are the natural fit in Westmorland. Rear yards here are often generous, so a true backyard cottage — for farm-family housing, an aging parent, or a long-term renter — usually fits without gymnastics. Under California’s ministerial (by-right) ADU process, compliant projects don’t face discretionary hearings, and required side and rear setbacks are capped at 4 feet by state law.
Garage conversions are the other common path. Many Westmorland homes have simple detached garages or shops that convert directly into one-bedroom units, and under state law cities generally cannot require replacement parking for these conversions. Attached additions work where the main home’s footprint already leaves side yard to spare, and junior ADUs up to 500 square feet — carved from existing living space with a recorded deed restriction — give homeowners the lowest-cost route to a permitted unit. State law bars cities from imposing owner-occupancy requirements on standard ADUs, so a Westmorland ADU can be rented long-term whether or not the owner lives on site.
A few practical notes for Westmorland projects. The city reviews ADUs under the state framework: ministerial approval, 4-foot side and rear setbacks, no owner-occupancy for standard ADUs, and a deed restriction for JADUs. Because the town sits in a seismically active part of the valley — the 1981 quake is a reminder — we confirm foundation and soil conditions carefully during feasibility, especially on older homes. Pre-1970s properties also typically get electrical panel and sewer lateral checks, and extreme summer heat means service-capacity planning comes before design is finalized.
Rental demand in Westmorland comes straight from the fields: year-round agricultural employment surrounds the town, and affordable housing near the job site is in constant demand from farm workers and their families. A permitted ADU here does double duty — it houses people the valley needs and pays its way as a rental. We design every project to permit cleanly the first time, so the timeline from decision to move-in stays short.
Ready to find out what your Westmorland lot can carry? ADU Cities is a Southern California ADU design-build firm — we handle feasibility, design, permits, and construction under one roof. Call 562.810.1965 for a free consultation and site evaluation. CSLB #1138550.
