Architects in Boyle Heights, CA

Architectural fees in Los Angeles and surrounding cities (Glendale, Burbank, Pasadena) typically range from 5%–10% of the total construction cost for residential projects. For smaller projects like ADUs or garage conversions, some architects may offer a flat-rate design package. Hiring an architect ensures your plans meet city code and pass permit approval smoothly.

Adding an ADU (Accessory Dwelling Unit) or a home addition in Los Angeles often increases property value based on the average price per square foot in your neighborhood. For single-family homes and properties with fewer than four units, an ADU not only raises resale value but can also generate rental income, making it one of the best investments for California homeowners.

Most architectural projects in California follow these stages:

Consultation & Site Analysis – reviewing property conditions, zoning, and project goals.

Rough Design – initial sketches and layout concepts.

Design Development – refining the floor plans, elevations, and materials.

Prepare Documents – preparing detailed plans for permits and builders.

Permit Submittal – submitting to LADBS (Los Angeles Department of Building & Safety) or your local city’s planning department.

Construction Administration – optional, where your architect coordinates with contractors during the build.

In Los Angeles, Glendale, and Burbank, plan check approval usually takes 3–6 months. Timelines may be longer if your property is in a Historic Preservation Overlay Zone (HPOZ), hillside area, or near utility easements. Working with an experienced architect can speed up approvals by submitting a complete, code-compliant set of plans.

A wall can be removed only if it’s not load-bearing. Load-bearing walls support the roof, ceiling, or floor above and require a new beam or structural support to replace them. An architect or structural engineer in Los Angeles can determine if your wall is load-bearing and prepare safe, permit-ready plans for removal.

You can check eligibility for SB9 lot splits or duplex projects in Los Angeles by using the ZIMAS (Zone Information & Map Access System) tool or your city’s zoning map. Properties in very high fire zones, historic overlays, or environmental restrictions may not qualify. A licensed architect can review your parcel and confirm if SB9 applies to your property.

Under California state law, every single-family property has the right to build an ADU up to 800 sq. ft., even if local zoning would otherwise restrict it. In Los Angeles, detached ADUs can be as large as 1,200 sq. ft., depending on Residential Floor Area (RFA) limits. Glendale and Burbank also follow California ADU law but may enforce local design standards.

Always check with a local architect to confirm the latest ADU regulations for your city.

Los Angeles – Two-story ADUs are allowed if they meet height limits (generally up to 25 ft. for detached units).

Glendale – Detached ADUs are limited to single-story, though attached conversions may be possible.

Burbank – A second story is usually permitted only above an existing structure, such as a garage.