In Lakewood, water heaters located outside or in a garage start with planning review, according to the city's home improvements guide, and the city publishes a "Typical Water Heater in Shed" handout. Many Lakewood homes have their heater in the garage or a small outdoor closet, so it helps to know the rules before replacing or moving one.
What the city says
The City of Lakewood home and property improvements guide lists "water heaters located outside or in a garage" among projects that start with planning review. The permits, forms and reference page includes a Typical Water Heater in Shed requirements handout. Plumbing permits are issued through Building and Safety, per the permits page.
Common code items for garage heaters
- Elevation or vapor resistance: gas heaters in garages commonly need their ignition source at least 18 inches above the floor unless the unit is listed as flammable-vapor-ignition resistant.
- Impact protection: heaters where a car could hit them may need a barrier.
- Seismic straps: required statewide by California Health and Safety Code 19211.
- Relief valve discharge: routed to an approved location, not capped.
- Venting and combustion air: proper vent connector and clearances.
Not sure what you need? Talk it through by phone.
Call (708) 350-9399Outdoor sheds
Outdoor water heater closets and sheds must protect the heater from weather while allowing combustion air and service access. The city's shed handout shows what inspectors expect. Older sheds often have rotted doors or floors, so check yours when you're replacing the heater.
Moving a heater
Moving a heater from a closet to the garage or outside, or the other way, changes the gas line, venting, water lines and possibly the planning review requirements. Talk through the location before buying a new unit. Tankless units have their own venting and gas needs. See tankless water heaters.
Replacement checklist
- Note the heater's fuel, size and location.
- Check access: can the old tank get out and the new one in?
- Ask whether the provider pulls the permit and handles inspection.
- Ask about straps, expansion tank, platform height and relief valve discharge.
- Keep the permit record.
See water heater replacement and our cost guide.
Local note
Garage water heaters are common across Lakewood's post-war tracts, from the Mutuals near Bolivar Park to Carson Park near Monte Verde Park. For more on straps, read earthquake strapping. For permits in general, see plumbing permits in Lakewood.
When should you call a plumber about this?
Call when you see active leaks, water damage, sewage, repeated clogs, low pressure across the house, or anything involving gas. Call too when a job needs a permit, or when you're buying a home and want an inspection before you close. Describe what you've noticed, the home's age and your address or cross streets. You'll hear on the call whether your address and job are covered.
How was this guide researched?
This guide was written for Lakewood, California homeowners and checked against the sources below on November 11, 2026. Rules and prices change, so confirm anything important with the agency or provider. See our editorial policy.