ADU Builders in Colton, California
Whether you want a rental unit, a home for aging parents or a studio for adult kids, building an ADU in Colton has never been easier under California's ADU laws. Our team plans every project around the hot, dry summers where cooling loads drive design typical of Colton.
Typical cost
$155k–$340k
Permit time
4–8 weeks
Est. rent
$1,750+/mo
Population
54,000
Popular ADU types in Colton
Our most requested projects in Colton are attached ADUs and prefab and modular ADUs. Many Colton parcels built between the 1950s and 1980s have wide rear yards that fit an 800–1,200 sq ft detached unit without touching the main house.
Design-wise, Colton homeowners in the Inland Empire tend to favor stucco-and-tile ranch styles, cool roofs and shaded patios.
Building an ADU in San Bernardino County
Every Colton ADU we build is engineered around local conditions — especially summer heat, larger lots with long utility runs and wildfire zones. We prepare complete plan sets so the city can approve within the state's 60-day review window, typically 4–8 weeks here.
At $1,750–$2,700 per month in rent, a new ADU in Colton can pay for itself in roughly 9.3 years.
Colton ADU FAQs
How much does it cost to build an ADU in Colton?
Most Colton ADUs we build land between $155k and $340k, 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 Colton?
State law requires cities to act on complete ADU applications within 60 days. In practice, Colton permits typically take 4–8 weeks when plans are submitted complete — which is what our in-house drafting team focuses on.
What can I rent an ADU for in Colton?
Based on Inland Empire rental trends, a new 1-bedroom ADU in Colton commonly rents for $1,750–$2,700 per month, putting typical payback around 9.3 years.
What are the biggest challenges for ADUs in Colton?
In Colton and the wider Inland Empire, the issues we plan around most are summer heat, larger lots with long utility runs and wildfire zones. We review these during a free feasibility check before you commit.
Is attached ADUs a good option in Colton?
Yes — attached ADUs are among the most popular projects we build in Colton. Newer subdivisions in Colton often have tighter side yards, so we frequently recommend attached ADUs or converting an existing garage to keep costs down.
ADU builders near Colton
Get a free ADU feasibility check in Colton
Tell us about your lot. We'll review zoning, setbacks and utilities and send a ballpark budget — no obligation.