There are so many perks to starting the process of building your very own ADU In Riverside, that will not only bring you in some extra cashflow every month, but also provide a great place for family and friends. You may be looking to save and want a permit without spending an arm or leg on building an ADU in Riverside but you have come to the right place if you are wondering how.
We will go over first the permitting, and later on ways you can build your ADU in Riverside without breaking your bank.
Step 1: Learn What Riverside Requires for Your ADU Permit
The City of Riverside adheres to California's state ADU Laws, but also has a set of its own zoning standards for the ADUs. What you will need to obtain an ADU permit in Riverside_bug?
- Full site plan of the current boundary, construct a structure and ADU locations.
- Floor plans and elevations that meet city building codes.
- Title 24 energy compliance report (for energy efficiency).
- Preparation of the permit application and its submission to Riverside’s Building & Safety Division.
💡ProTip: Riverside has pre approved ADU plans which can get your plan approved in record time and save you thousands of dollars on design fees.
Step 2: Pick The Cheapest ADU Style
Your ADU type also makes a big difference in terms of cost.
- Garage Conversion ADU – Uses your existing structure; fewer materials, lower cost.
- Attached ADU – Shares walls and utilities with your main home.
- Detached ADU – Costliest due to full new construction
Step 3: KISS (Keep It Small, Stupid))
Riverside is among the easiest on ADUs, allowing them to be as large as 1,200 sq ft (but you don't have to go that big). A 400-600 sq ft ADU will mortgage you a bedroom, bath, kitchen and living space — minimizing the costs of both permit fees and construction.
Step 4: Riverside Building – Care for Cost-Saving
- City Pre-Approved Plans – No custom architect fees.
- Simple Design – Rectangular layouts and standard roofs save on materials.
- Smart Plumbing – Keep kitchen and bathroom close to reduce piping.
- Shop Local for Materials – Riverside has building supply outlets, salvage yards, and Habitat for Humanity ReStores with discounted items.
Step 5: Know the Cost Range for Riverside ADUs
So what does that mean for the budget-friendly builds.
- Garage Conversion – $50,000–$90,000
- Attached ADU – $80,000–$130,000
- Completed ADU (400–500 sq ft) – $100,000–$150,000
Step 6: Employ a Riverside-Knowledgeable Professional
Anyone with experience in handling Riverside ADU permits for a contractor helps you avoid a lot of headaches and prevent delays. Before you commit, always get 3 quotes and compare scope, materials & timelines.
