Do I Need an Architect for a Remodel in Los Angeles?

Homeowners planning a remodel in Los Angeles usually assume the sequence is: hire an architect, get drawings, then find a contractor. For a lot of projects that order wastes months and five figures. Here is who you actually need, and when.

The legal answer: usually no

California's architect practice act includes a broad exemption — Business & Professions Code §5537. A single-family home of up to two stories (plus basement and garage) does not have to be designed by a licensed architect. Plans for a permit can be prepared by a drafter, a designer, a design-build contractor, or even the owner.

An architect is required for:

• Residential buildings of more than two stories
• Buildings with more than four dwelling units (an architect or engineer)
• Any part of a structure that deviates from conventional wood framing under the California Building Code — that portion needs an architect's or engineer's design

One caveat that matters in practice: the building department has the final word. LADBS or Burbank Building & Safety can require engineered plans for anything structurally unusual — big openings, steel beams, hillside work — even in a one-story house. Usually that means a structural engineer, not an architect.

What each professional actually does

Who	What you get	Typical cost in LA
Architect	Design, stamped drawings, can administer construction	10–20% of construction cost; $4,155–$21,494 typical project; $150–$350/hr
Structural engineer	Calculations and details for beams, foundations, seismic	Often $2,000–$8,000 per remodel scope
Design-build contractor	Design + permit plans + construction, one contract	Design folded into the build price

These are typical Los Angeles market ranges, not a quote.

When an architect is worth the fee

Hire an architect when design is the problem you're paying to solve: reorganizing a choppy floor plan, a second-story addition where massing and light matter, a hillside lot with tricky siting, or a home where resale value depends on architectural coherence. On a second-story addition or a whole-home renovation, good design decisions easily return the fee.

Skip the standalone architect when the project is scope, not design: a kitchen staying in its footprint, a bathroom remodel, most garage conversions. A design-build contractor produces permit-ready plans for those as part of the job — and you avoid the classic LA failure mode where an architect draws a beautiful $350,000 scheme for a $200,000 budget and the plans go in a drawer.

The hybrid that works for most remodels

The most common setup we see on Los Angeles remodels: design-build contractor + structural engineer on specific items. The contractor draws the plans and pulls the permit; the engineer stamps the beam over the new kitchen opening or the foundation detail. You pay for engineering where the code demands it, not for full architectural service on a project that doesn't need one. If you're removing a load-bearing wall, that engineer's stamp is what the plan checker wants to see anyway.

How to decide in one minute

Ask two questions. Is the layout changing enough that design quality will make or break the result? If yes, interview architects. Is the structure changing? If yes, an engineer is in the picture either way. If the honest answer to the first question is no — and for most kitchens and baths it is — a licensed design-build contractor gets you to a permit faster and cheaper, with one party responsible for both the drawings and the built result.

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DN Builders Group Inc is a licensed, bonded general contractor based in Burbank (CA Lic. #1139710). See our whole-home renovation and kitchen remodeling services, or our guide to what a whole-home renovation timeline looks like in LA. Figures are typical 2026 Los Angeles market ranges, not a quote, and this is general information rather than legal advice.

Questions

When is an architect legally required in California?

A licensed architect (or engineer) must design and stamp plans for residential buildings of more than two stories, or with more than four dwelling units, and for any structure that deviates from the conventional wood-framing rules in the California codes. A typical one- or two-story single-family remodel is exempt — although the building official can still require an architect or engineer for unusual structural work, and in practice most structural changes need at least an engineer's calculations.

What does an architect cost for a remodel in Los Angeles?

Plan on 10–20% of construction cost for remodels — higher than new construction, because working inside an existing structure is messier. In Los Angeles that typically lands at $4,155–$21,494 per project, with hourly rates of $150–$350. On a $200,000 remodel, full architectural service could run $20,000–$40,000. These are typical Los Angeles market ranges, not a quote.

What's the difference between an architect and a design-build contractor?

An architect designs, draws stamped plans, and can supervise the contractor's work against those drawings. A design-build firm handles design and construction under one roof and one contract — usually cheaper and faster for kitchens, bathrooms, and straightforward additions, because the plans are drawn by people who will actually build them. Architects earn their fee when the design itself is the hard part.

Do I need an architect for an ADU?

Usually not. A one-story ADU falls squarely under the state exemption, and many Los Angeles ADUs are built from pre-approved standard plans or designed by the design-build contractor. You will still need a structural engineer for items like removing walls, steel moment frames, or hillside foundations.