A modern manufactured ADU is the fastest and most cost-effective way to add a second home to your Redding property. Nestably helps Shasta County homeowners plan, permit, and install factory-built ADUs — for rental income, aging parents, adult children, home offices, or multigenerational living — with honest numbers and no pressure.
For years, adding a second unit in Redding meant either a garage conversion (limited, character-eroding, small) or full site-built construction (expensive, slow, and permitting-heavy). Manufactured ADUs — factory-built to HUD code, delivered nearly complete, installed on a permanent foundation on your existing property — are dramatically faster and cheaper than either.
For Redding property owners looking at rental income, current market rents for a well-built 1–2 bedroom ADU generally run $1,300–$1,900/month depending on location and finish. A fully-installed ADU commonly pays for itself in 8–12 years, and the added property value at resale is often close to the full installed cost.
Use cases
Who's actually building ADUs in Shasta County.
Rental income — long-term rental to supplement retirement or mortgage payments.
Aging parents — bringing family close without merging households.
Adult children — offering privacy and affordability in a market that's priced them out.
Multigenerational living — real space for grandparents, kids, and grandkids on one property.
Home office / studio — dedicated workspace separated from primary living.
Guest housing — for extended family visits, travel nurses, or short-stay guests.
Redding & Shasta zoning
What the rules generally look like.
California ADU law requires most jurisdictions to allow at least one ADU on qualifying single-family lots, with size limits generally starting at 800–1,200 sqft depending on jurisdiction and lot size. Setbacks are typically reduced from primary-residence standards (often 4 feet from side and rear property lines). Owner-occupancy requirements have shifted several times under state law — the City of Redding and Shasta County both follow current state guidance.
Because ADU rules evolve, we verify the current state and local rules on your specific parcel with the City of Redding Planning Division or Shasta County Planning before you sign anything. This is a free part of a Nestably consultation.
The models
What ADU-category homes look like today.
The ADU-category homes we work with are true small houses, not RVs or park models. Real bedrooms, real kitchens, drywall interiors, modern insulation, HVAC, and finish packages that would be at home in a starter house. Sizes typically range from around 400 sqft for a compact studio+bath up to about 1,200 sqft for a two-bedroom design with a full kitchen and separate living area.
Base pricing for the ADU-category models in our catalog starts around $56,000 and runs up to about $120,000 for larger multi-bedroom units, before delivery, foundation, and hookups.
The process
From first consultation to tenant move-in.
A typical Redding ADU project runs six steps. First, a free consultation to establish goals, site constraints, and budget. Second, we verify current ADU zoning, setbacks, and utility capacity for your specific parcel with the appropriate jurisdiction. Third, model selection matched to your site and use case. Fourth, permit submission (building, electrical, plumbing, and any Cal Fire access review if applicable). Fifth, factory build in parallel with site prep, foundation, and utility work. Sixth, delivery, set, hookups, final inspection, and 433A recording where applicable.
Keep exploring
Related Nestably resources
Everything below is built by the same team, with the same honest guidance.
Can I add a manufactured ADU to my Redding property?
In most residential zones in Redding and Shasta County, yes — California state ADU law (SB 9 / AB 68 and successors) requires jurisdictions to allow at least one ADU on most single-family lots, and manufactured/factory-built ADUs are explicitly permitted. Local specifics on setbacks, size caps, and owner-occupancy rules vary and evolve, so always confirm current rules with the City of Redding Planning Division or Shasta County Planning before you commit.
How much does a manufactured ADU cost in Redding?
The ADU-category models Nestably works with typically start around $56,000 for a compact unit and range up to about $120,000 for a larger multi-bedroom ADU home before delivery, foundation, and utility connections. Full installed cost in the Redding area — including foundation, hookups, and permits — usually lands between $110,000 and $200,000 depending on your site.
How long does an ADU project take?
Most Redding-area manufactured ADU projects run 4–6 months from signed order to occupancy. Factory build runs 8–12 weeks in parallel with site prep, foundation, and utility work.
Can I rent out my ADU?
In most cases yes. California law generally permits ADU rentals, though short-term rental rules (under 30 days) vary by city and change over time. Long-term rental of a Redding-area ADU is the most common use case among our clients — for rental income, family housing, or aging-in-place multigenerational living.
Do I need a separate utility hookup for the ADU?
Sometimes. Redding and Shasta County generally allow ADUs to share the primary residence's water and sewer service, but PG&E often requires a separate electric meter. Site distance, primary panel capacity, and septic capacity all factor in. We check each on your property before you commit.
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