Burlingame — the “City of Trees” — pairs tree-lined streets with one of the Peninsula’s most desirable housing mixes for ADUs. Burlingame Park and the neighborhoods around Broadway carry older craftsman and bungalow homes on generous lots, East Burlingame adds mid-century stock on tighter parcels, and the hills west of El Camino Real rise into larger view properties. With Caltrain stops downtown and at Broadway, Mills-Peninsula Medical Center nearby, and SFO minutes away, the city draws steady rental demand from commuters, hospital staff, and airline employees.
On Burlingame’s larger lots, a detached ADU up to 1,200 square feet is often feasible — a true backyard cottage with private outdoor space that works for rental income or multigenerational living. In the bungalow districts, garage conversions and attached additions are the more common play: the older homes have deep footprints, and converting an existing garage avoids new setback conflicts while, under state law, generally avoiding replacement parking requirements. Mature trees are a defining feature of Burlingame lots, so we plan unit placement around protected root zones from the start.
Junior ADUs (JADUs) suit Burlingame’s older, larger homes well. Carving a compact, up-to-500-square-foot unit out of existing living space gives homeowners a low-disruption path to housing for an aging parent, a caregiver, or an adult child — no new foundation and no exterior change to the home’s street presence. State law prohibits cities from requiring owner-occupancy for standard ADUs, so most Burlingame ADU projects can be rented to long-term tenants without the homeowner living on site.
Burlingame ADU permits route through the city’s Community Development Department, and California’s ministerial (by-right) approval process applies — a compliant project cannot be subjected to discretionary hearings. State law caps required side and rear setbacks at 4 feet. The main local wrinkle is the tree canopy: Burlingame’s heritage tree protections mean we confirm tree locations and protected species during feasibility before placing a detached unit. Older homes in the bungalow districts also warrant an early electrical panel and sewer lateral check.
Rental demand in Burlingame is deep and durable: the Caltrain corridor, the hospital and medical employment around Mills-Peninsula, SFO’s workforce, and the broader Peninsula job market all feed a strong tenant pool. Well-built ADUs near the Broadway or downtown Caltrain stations lease particularly well. Whether the goal is monthly income, housing for family, or both, the project works when the unit is designed right and permitted correctly the first time.
Ready to find out what your Burlingame 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.
