ADU Builder in Hidden Valley, NV
ADU Builder Reno provides ADU design, construction, garage conversions, and remodeling for homeowners in Hidden Valley. Whether you're starting with a detached backyard build, an attached addition, or converting an existing garage, our team plans each project around your property and your goals. We serve Hidden Valley as part of our wider northern Nevada service area.
ADU Services in Hidden Valley
ADU Design & Planning
Site evaluation, floor plans, and layout planning tailored to your property and goals.
ADU Construction
Full-scope building from foundation to finishing, covering framing, roofing, plumbing, electrical, and HVAC.
Garage Conversion ADUs
Turning an existing garage into livable space, working within its current structure and condition.
Detached ADU Construction
Standalone backyard units built independently from the main home, with their own foundation and utility connections.
Attached ADU Construction
Additions connected to the primary residence, sharing a wall or structure while maintaining separate access.
ADU Remodeling & Renovation
Updating or modernizing an existing ADU — kitchens, bathrooms, flooring, and layout improvements.
Let's Start Your ADU Project in Hidden Valley
Let’s chat about your ideas! Getting started is easy – simply reach out with details about your ADU project!

ADU Construction in Hidden Valley — What Homeowners Should Know
Hidden Valley is an established residential neighborhood in southeast Reno, Nevada, developed with a mix of home styles and lot sizes. Many properties in the area feature mature trees, existing garages, and backyard space that can support a range of ADU project types.
Like the wider Reno area, Hidden Valley experiences a high-desert climate with hot, dry summers, cold winters, and low annual precipitation, which construction crews account for when scheduling site work and selecting materials. Because the neighborhood includes a number of older homes, existing structure condition — including garages and outbuildings — often plays a role in ADU planning.
Hidden Valley at a Glance
- Location: Established residential neighborhood in southeast Reno, Nevada
- Climate: High-desert climate with hot summers, cold winters, and low precipitation
- Terrain: Generally level to gently sloped residential lots
- Housing: Mix of single-family homes, including a number of older, established properties
- Community character: Suburban residential with mature landscaping
Note: Only general, verifiable characteristics of the area are included above. Specific population or housing statistics are not stated unless independently verified.
Local Property Considerations
Before any ADU project begins, we look at:
- Lot configuration — how much usable space is available for a detached unit or addition
- Backyard access — whether equipment and materials can reach the build site, especially around mature trees or landscaping
- Existing structures — the condition of any current garage or outbuilding being converted
- Utility connections — proximity of water, sewer, and electrical service to the new unit
- Grading and drainage — how water moves across the lot
- Privacy — placement relative to neighboring properties and the main home
- Placement — where an ADU can reasonably sit on the lot given setbacks and existing features
Why ADUs Can Be Useful in Hidden Valley
Homeowners in Hidden Valley consider ADUs for a range of practical reasons, including:
- Additional living space for a growing household
- Accommodations for aging parents or extended family
- A private space for guests
- A flexible room that can change use over time — office, gym, or living space
- Converting an existing garage into functional living area
- Updating or remodeling an older ADU already on the property
We don’t make claims about rental income or demand — those factors depend on individual circumstances and local market conditions.
ADU Costs in Hidden Valley
Hidden Valley lots are often larger than in-town lots, which leaves room for a detached ADU, but longer utility runs from the main house to a backyard unit add cost. On the county side, an Administrative Review for smaller parcels adds time and fees before the building permit.
Try our ADU cost calculator, then book a free site visit for a written estimate.
ADU Rules in Hidden Valley: County or City?
Hidden Valley is split between unincorporated Washoe County and the City of Reno, and the ADU rules differ, so the first step is confirming which side your parcel is on.
- County side. Washoe County allows attached ADUs throughout most residential areas. A detached ADU on a parcel of half an acre or smaller needs an Administrative Review, a staff-level county review. Only one accessory dwelling unit, attached or detached, is allowed per parcel.
- Reno side. The City of Reno allows one ADU per property wherever single-family homes are allowed, on lots of at least 5,000 square feet, and the ADU can’t be taller than the main home.
- Wells. If a detached ADU on the county side uses a domestic well, Washoe County requires a water meter to be installed.
See our main page on ADU builders in Reno.
Need Help?
Frequently Asked Questions About ADUs in Hidden Valley
Below are some of the most common questions Our Network get from families about ADU. If you have any other questions contact us!
Do Reno or Washoe County ADU rules apply in Hidden Valley?
It depends on the parcel. Hidden Valley is split between unincorporated Washoe County and the City of Reno, so confirm your jurisdiction first.
Do I need extra approval for a detached ADU in Hidden Valley?
On the county side, a detached ADU on a parcel of half an acre or smaller needs an Administrative Review from Washoe County.
How many ADUs can I have?
One. Both Washoe County and the City of Reno allow a single ADU per parcel.
My property uses a well. Does that change anything?
In unincorporated Washoe County, a detached ADU that uses a domestic well requires a water meter.
Can I use an RV as an ADU?
No. Washoe County does not consider a recreational vehicle a dwelling, so it can’t serve as an ADU.
Get a Free ADU Estimate in Hidden Valley
If you’re a Hidden Valley homeowner considering an ADU, we’re ready to help — whether you need design and planning, new construction, a garage conversion, a detached or attached ADU, or a remodel of an existing unit. We offer a free consultation and a no-pressure estimate based on your property and goals.
Tell us a little about your project below, and we will follow up to set up your free estimate.

