Redlands is the Inland Empire’s historic citrus town — tree-lined streets, Victorian and Queen Anne architecture downtown, and the landmark Smiley Heights estates rising above it all. The housing stock has real range: grand turn-of-the-century homes in the historic districts, 1950s and 60s ranch tracts across north Redlands, and remaining citrus grove parcels with the deep lots and mature landscaping that make ideal ADU sites. That variety means the right ADU type genuinely depends on which Redlands neighborhood you’re in.
On the larger parcels — the grove properties, the Smiley Heights area, and the roomier lots south of the 10 — a full-size detached ADU up to 1,200 square feet is often the best play. These sites have the rear-yard depth for a true backyard cottage with its own outdoor space, and a well-designed unit fits naturally among the mature citrus and landscaping. In the postwar tract neighborhoods, the smarter path is usually a garage conversion or an attached addition. Converting an existing garage keeps construction within the current footprint, and under state law replacement parking generally cannot be required for a converted garage.
One note that’s specific to Redlands: the city has designated historic districts, including Smiley Heights, where exterior changes face historic review. A detached ADU on a historic-district property is absolutely doable, but the design needs to respect the district’s character — massing, rooflines, and materials all matter to the review. We handle that coordination as part of the design process rather than leaving homeowners to navigate it alone.
Permitting runs through the City of Redlands Development Services Department, and California’s ministerial (by-right) approval process applies to compliant ADUs — no discretionary hearings for a project that meets the standards. State law caps required side and rear setbacks at four feet. Practical items we confirm during feasibility include sewer lateral condition on the older downtown homes and electrical panel capacity — many pre-war and mid-century properties here still need a panel upgrade before a second dwelling can be served.
Rental demand in Redlands is anchored by the University of Redlands and the medical corridor around Loma Linda, just minutes west — students, staff, and medical workers all need smaller, well-located housing. The town’s character is its draw, and an ADU that’s designed to sit comfortably in a historic neighborhood rents faster and holds its appeal longer than one that fights its surroundings.
Ready to find out what your Redlands lot can carry? ADU Cities is a Southern California ADU design-build firm — we handle feasibility, design, permits, and construction under one roof. Call 310.880.9718 for a free consultation and site evaluation. CSLB #1138550.