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ADU design-build · Pasadena

ADUs in Pasadena

Bungalow Heaven, Craftsman streets and large historic lots: in Pasadena, an ADU must be as well designed as the house it sits behind.

What applies to your lot

Building an ADU in Pasadena

Who approves your ADU

City of Pasadena: ADUs follow Section 17.50.275 of the Pasadena Municipal Code, reviewed by Planning & Community Development. State law applies everywhere: a decision within 60 days of a complete application, no public hearing, and at least 800 sq ft with 4 ft side and rear setbacks.

Landmark and historic districts

In Landmark or Historic Districts and on designated properties, most new ADUs must not be visible from the street, unless that would prevent building the unit.

Standard Plans Program

Pasadena runs an ADU Standard Plans Program with pre-reviewed designs, a useful start on many lots.

Hillside areas

Hillside overlay districts add conditions on access and safety. We check your parcel on the city maps before design.

California law, everywhere

The rules every city must respect

800 sq ft

Every city must allow at least an 800 sq ft detached ADU with 4 ft setbacks.

4 ft

Maximum side and rear setback for a new detached ADU.

750 sq ft

No impact fees up to this size.

60 days

To approve or deny a complete application, without a hearing.

Read the full guide to ADU rules →

Ideas for your lot

Plans that suit Pasadena lots

Studio

L-shaped studio around a patio

432 sq ft · L · 24' × 24'

Studio1 bath

1 bedroom

One-bedroom with front porch

672 sq ft · 24' × 28'

1 bed1 bath

Two-story

Compact two-story one-bedroom

704 sq ft · 16' × 22'

1 bed1.5 baths

See all 51 floor plans →

FAQ

ADU questions in Pasadena

Who approves an ADU in Pasadena?

The City of Pasadena, not Los Angeles. Historic Preservation staff may review the design in historic districts.

I live in Bungalow Heaven. Can I build?

Yes. The ADU is usually placed so it is not visible from the street, with materials that respect the house.

Do you come to my property?

Yes. The visit is free: we look at the lot, the access and the utilities, then give you a realistic estimate.

Nearby areasGlendaleBurbankCentral Los Angeles

Free feasibility call

Book a free 15-minute feasibility call

A project lead reviews your address, tells you what your lot can hold and gives you a first look at your financing eligibility.

What you get

  • Free, with no obligation
  • A clear answer on what your lot can hold
  • A first look at financing eligibility, by phone or at your property
  • A site visit only if it makes sense

Prefer to talk now? (424) 448-4895

Email: [email protected]

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Service areas

Serving homeowners across Los Angeles

Los Angeles, the South Bay and Orange County, within about 40 miles of Paramount. Farther on request.

Service areas

ADU rules, city by city

Permits, fire and coastal zones, pre-approved plans: see what applies in the 36 cities we serve.

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