ADU Builders in Pasadena, California
With about 135,000 residents and housing costs that keep climbing, Pasadena homeowners are turning backyards into income. Our Pasadena ADU builders handle design, Los Angeles County-area permitting and construction under one contract, built for the mild Mediterranean climate with hot inland summers.
Typical cost
$191k–$445k
Permit time
6–10 weeks
Est. rent
$2,350+/mo
Population
135,000
Popular ADU types in Pasadena
Our most requested projects in Pasadena are attached ADUs and prefab and modular ADUs. Corner lots and alley-access lots in Pasadena are ideal for ADUs with their own street entrance and separate address.
Design-wise, Pasadena homeowners in the LA Basin tend to favor Spanish revival, mid-century modern and Craftsman details that match existing streetscapes.
Building an ADU in Los Angeles County
Every Pasadena ADU we build is engineered around local conditions — especially hillside grading, alley access and tight setbacks on older lots. We prepare complete plan sets so the city can approve within the state's 60-day review window, typically 6–10 weeks here.
At $2,350–$3,800 per month in rent, a new ADU in Pasadena can pay for itself in roughly 8.6 years.
Pasadena ADU FAQs
How much does it cost to build an ADU in Pasadena?
Most Pasadena ADUs we build land between $191k and $445k, depending on size, site work and finishes. Garage conversions sit at the low end; custom two-story units at the high end.
How long does ADU permitting take in Pasadena?
State law requires cities to act on complete ADU applications within 60 days. In practice, Pasadena permits typically take 6–10 weeks when plans are submitted complete — which is what our in-house drafting team focuses on.
What can I rent an ADU for in Pasadena?
Based on LA Basin rental trends, a new 1-bedroom ADU in Pasadena commonly rents for $2,350–$3,800 per month, putting typical payback around 8.6 years.
What are the biggest challenges for ADUs in Pasadena?
In Pasadena and the wider LA Basin, the issues we plan around most are hillside grading, alley access and tight setbacks on older lots. We review these during a free feasibility check before you commit.
Is attached ADUs a good option in Pasadena?
Yes — attached ADUs are among the most popular projects we build in Pasadena. Across Pasadena, we see strong demand for 1-bedroom units around 600 sq ft — the sweet spot for build cost versus rental income.
ADU builders near Pasadena
Get a free ADU feasibility check in Pasadena
Tell us about your lot. We'll review zoning, setbacks and utilities and send a ballpark budget — no obligation.