ADU Builder in El Dorado Hills, CA
95762
Licensed general contractor designing and building accessory dwelling units throughout El Dorado Hills - detached ADUs, attached ADUs, garage conversions, and JADUs, with full El Dorado County permit handling and in-house structural engineering.
CSLB Licensed #1103096
Free Site Assessment
5-Star Rated on Google & Yelp
El Dorado County Permit Experts
Craftsmanship Warranty
CA ADU Law 2025/2026 Current
El Dorado hill 's Trusted ADU Contractor
El Dorado Hills is one of the most ADU-friendly communities in Northern California – and most homeowners don’t know it yet. El Dorado County’s ADU regulations are among the most permissive in the region: no setbacks required for converted JADUs and attached ADUs, no height or design approval required at the county level, no additional parking required for garage conversions, and no fire sprinklers required unless deemed necessary for safety. Combined with California’s streamlined ADU permitting laws, El Dorado Hills homeowners have more flexibility to build – and fewer bureaucratic hurdles – than in almost any other NorCal community.
At Condor Builders, we handle the complete ADU process for El Dorado Hills homeowners – site assessment, design, engineering, El Dorado County permitting, construction, and certificate of occupancy – under one license and one project manager. We’re a licensed general contractor (CSLB #1103096), fully insured, and experienced with El Dorado County’s specific building requirements, pre-reviewed plan programs, and inspection process.
What makes us different from ADU-only specialists: as a full-service GC, we can handle everything your ADU project touches – foundation work, framing, plumbing, electrical, HVAC, insulation, drywall, cabinetry, and finish work – plus any associated work on your primary residence like kitchen remodeling, bathroom updates, or deck construction.
Many El Dorado Hills homeowners building an ADU take the opportunity to upgrade other parts of their property at the same time. One contractor, one schedule, one point of contact.
El Dorado County ADU Regulations - What Homeowners Need to Know
No Setback Requirements for Converted ADUs
Converted JADUs and attached ADUs in El Dorado County have no setback requirements from property lines. Detached ADUs must be set back no more than four feet from side and rear property lines - one of the most permissive standards in California.
No Height or Design Approval Required
El Dorado County does not require height or design approval for ADUs at the county level. This significantly simplifies and accelerates the planning phase compared to many other California jurisdictions.
No Parking Replacement Required
If you convert a garage to an ADU, El Dorado County does not require you to replace the lost parking spaces - removing one of the most common objections to garage conversion projects.
No Fire Sprinklers Required
Traditional fire sprinklers are not required for ADUs in El Dorado County unless specifically deemed necessary for safety. Other approved fire protection methods may apply.
Up to 1,200 Sq Ft
California law allows detached ADUs up to 1,200 sq ft on most single-family lots in El Dorado Hills.
One ADU + One JADU Per Lot
Most El Dorado Hills single-family properties can accommodate one full ADU plus one Junior ADU simultaneously - maximizing the income and flexibility potential of your property.
ADUs Permitted Since 2020
ADUs have been permitted in all residential zones, single-family homes, and apartment buildings across California since 2020.
El Dorado Hills homeowners in all residential neighborhoods are eligible.
Please note: ADU regulations are updated regularly at both the state and county level.
We stay current with all California and El Dorado County ADU code updates – ask us about the latest rules during your free site assessment.
Types of ADUs We Build in El Dorado Hills, CA
Detached ADU
A fully independent structure built on your El Dorado Hills property - its own foundation, walls, roof, kitchen, bathroom, and entrance. Up to 1,200 sq ft. Ideal for maximizing rental income or creating independent family living space on El Dorado Hills's typically generous lot sizes.
Attached ADU
An addition built onto your existing home functioning as an independent unit. Shares at least one wall with the primary residence - more cost-effective than detached and eligible for El Dorado County's no-setback rule. No design approval required at county level.
Garage Conversion ADU
Converting an existing attached or detached garage into a fully permitted living space. One of the fastest and most cost-effective ADU options - the structure exists, eliminating foundation and exterior framing costs. No parking replacement required in El Dorado County.
Junior ADU (JADU)
A unit up to 500 sq ft created within the existing walls of your primary home - typically from a bedroom, large bonus room, or interior space. Requires an efficiency kitchen and separate entrance. No setback requirements in El Dorado County. The lowest-cost, fastest-to-permit ADU option.
Two-Story ADU
For El Dorado Hills properties where ground-level footprint is limited or views are a priority - a two-story detached ADU maximizes living space and can capture El Dorado Hills's scenic hillside views. Requires structural engineering - handled in-house by our team.
Pool House / Accessory Structure Conversion
Converting existing outbuildings or pool houses into permitted ADUs - a common opportunity on El Dorado Hills's larger properties where accessory structures already exist.
Why El Dorado Hills Homeowners Are Building ADUs
Strong Rental Income
El Dorado Hills's desirable location, top-rated schools (Rescue Union and Buckeye Union districts), and proximity to Folsom and Sacramento make it an attractive rental market. A 1-bedroom ADU in El Dorado Hills can generate $1,400-$2,000+ per month in rental income.
Significant Property Value Increase
A permitted ADU adds substantial appraised value to El Dorado Hills properties - typically $150K-$300K+ depending on size and type. With median home values in EDH well above $700,000, an ADU is a high-return investment.
El Dorado County's Permissive Rules
No setbacks for converted ADUs, no parking replacement for garage conversions, no height approval required - El Dorado County's ADU-friendly regulations make building here faster and less expensive than in many other California counties.
Multi-Generational Living
El Dorado Hills's established neighborhoods and family-oriented community make it a natural choice for multi-generational living. An ADU provides independent space for aging parents or adult children on the same property.
CalHFA $40,000 Grant
Qualifying El Dorado Hills owner-occupants may be eligible for the California Housing Finance Agency's $40,000 ADU grant - covering pre-development costs including permits, design, and engineering. Income limits apply. Ask us about current eligibility during your free estimate.
El Dorado County Pre-Reviewed Plans
El Dorado County provides pre-reviewed ADU plan sets approved by both Building and Planning departments - reducing design costs and compressing permit timelines for El Dorado Hills homeowners.
How Our El Dorado Hills ADU Build Process Works
Step 1 - Free Site Assessment & Feasibility
Lincoln sits in open, sun-exposed terrain with minimal mature tree canopy - creating some of the most intense UV and thermal conditions in the Sacramento region. Natural wood decking - even quality cedar and redwood - will bleach, crack, and check more rapidly in Lincoln's climate than in shaded foothills communities like Loomis or Auburn. Composite decking is the strongest long-term choice for most Lincoln properties, and we make this case clearly during every Lincoln estimate with real performance data.
Step 2 - Design & Engineering
Our in-house architect and engineer develop full ADU plans - floor plan, elevations, structural drawings, Title 24 energy calculations, and all documents required for El Dorado County permit submission. Where applicable, we work from El Dorado County's pre-reviewed plan sets to reduce design costs and compress the permit timeline.
Step 3 — El Dorado County Permit Submission
We prepare and submit the complete permit package to El Dorado County Building Department. Under California state law, El Dorado County must act on a complete ADU application within 60 days - one of the strongest protections available to California ADU applicants. We ensure our submission is complete and compliant to maximize the chance of first-round approval.
Step 4 - Financing Assistance
While permits are processing, we help you understand available financing options - including the CalHFA $40,000 ADU Grant for qualifying El Dorado Hills owner-occupants, HELOCs, construction loans, and ADU-specific lending programs. We don't provide financial advice but know which programs our NorCal clients have successfully used.
Step 5 - Construction
Your dedicated Condor project manager oversees the complete build - foundation, framing, roofing, windows and doors, plumbing, electrical, HVAC, insulation, drywall, flooring, cabinetry, and finish work. El Dorado Hills's sloped terrain and frequent septic system properties require careful site-specific construction planning - our team is experienced with both.
Step 6 - Final Inspection & Certificate of Occupancy
We coordinate the final inspection with El Dorado County, obtain the certificate of occupancy, and back the completed ADU with a craftsmanship warranty. Your ADU is now a fully permitted, legal, habitable dwelling unit ready for occupancy or rental.
ADU Cost and Timeline in El Dorado Hills, CA
How Much Does an ADU Cost in El Dorado Hills?
ADU costs in El Dorado Hills are influenced by the community’s sloped terrain, frequent septic system properties, and upscale finish expectations. Here’s a realistic breakdown:
El Dorado Hills-specific cost factors:
Sloped lots:
El Dorado Hills’s rolling terrain can require additional foundation work – retaining walls, stepped footings, or pier and beam foundations – for detached ADUs on steeply graded properties. We assess this during the free site visit and price it transparently.
Septic systems:
Many El Dorado Hills properties use septic systems rather than municipal sewer. Adding an ADU may require septic expansion or a separate system – a real additional cost that varies significantly by property. We assess septic capacity as part of the initial feasibility review.
Soft costs:
Design, engineering, Title 24 calculations, El Dorado County permits, and inspection fees typically add $15,000-$40,000 to the project total. We include these in your estimate – not as a surprise after you’ve signed.
CalHFA Grant:
Up to $40,000 available for qualifying El Dorado Hills owner-occupants to cover pre-development costs. Ask us about current availability during your free estimate.
How Long Does an ADU Take in El Dorado Hills?
Phase 1
Design & Engineering (6–10 weeks)
Full ADU plans, structural engineering, Title 24 energy calculations, and permit package. Using El Dorado County pre-reviewed plans can compress this phase significantly.
Phase 2
El Dorado County Permit Processing (up to 60 days)
California state law requires El Dorado County to act on complete ADU applications within 60 days. A complete, well-prepared submission is the key to staying within this window – which is why our permit package preparation is thorough.
Phase 3
Construction
- Junior ADU / Garage conversion: 2–4 months
- Attached ADU: 4–6 months
- Detached ADU: 5–9 months
Total realistic timeline
- Garage conversion: 6-10 months start to certificate of occupancy
- Detached ADU: 10-18 months start to certificate of occupancy
ADU Building in El Dorado Hills - What's Different Here?
Sloped Terrain & Foundation Planning
El Dorado Hills's rolling hillside topography is one of the community's defining characteristics - and one of the most important factors in ADU site planning. Sloped lots affect foundation type, drainage design, and access path requirements for detached ADUs. We conduct a thorough site assessment during the free consultation to identify any terrain-related factors before scoping the project.
Septic System Properties
A significant portion of El Dorado Hills properties - particularly those in less-dense hillside neighborhoods - use septic systems rather than municipal sewer connections. Before building an ADU, the existing septic system must be assessed for capacity to handle the additional unit's load. If expansion or a separate system is required, this affects both cost and timeline. We evaluate septic capacity as a standard part of our El Dorado Hills ADU feasibility assessment.
Well Water Properties
Some El Dorado Hills properties also use private well water rather than municipal water supply. ADU water demand is factored into the feasibility assessment for well properties - particularly relevant for larger detached ADUs with full kitchens and bathrooms.
View-Oriented Design
El Dorado Hills is known for its scenic hillside views - and ADU placement and design can be optimized to capture those views, increasing both the enjoyment and rental appeal of the unit. Our in-house architect considers view orientation as part of every El Dorado Hills ADU design.
Serrano & HOA Communities
Some El Dorado Hills communities - including parts of Serrano - have HOA covenants that may govern ADU placement, design, or appearance. We review your property's HOA documents during the initial assessment and advise on any community-level restrictions before proceeding.
Why NorCal Homeowners Choose Condor Builders for Siding & Trim
Licensed General Contractor
CSLB #1103096. We handle every trade - foundation, framing, plumbing, electrical, HVAC, and finish work - in-house. No sub-contractor coordination on your end.
El Dorado County Permit Experts
Deep knowledge of El Dorado County's ADU-specific regulations, pre-reviewed plan programs, 60-day processing requirement, and inspection process. We've navigated this process for NorCal homeowners and prepare complete applications that minimize back-and-forth.
In-House Structural Engineering
El Dorado Hills's sloped terrain frequently requires structural engineering for ADU foundations. Our in-house engineer handles stamped plans - faster and less expensive than outsourcing.
Terrain & Septic Experience
We understand the specific site challenges facing El Dorado Hills ADU projects - sloped lots, retaining walls, septic capacity assessment, well water properties - and price these honestly upfront.
CA ADU Law Current
We stay current with California's evolving ADU legislation and El Dorado County's specific implementation - including the most recent 2025/2026 state code updates.
Full-Service GC
Building an ADU often reveals opportunities on the primary residence - kitchen updates, bathroom remodeling, deck construction. As a full-service GC we handle it all under one contract and one schedule.
What Our Clients Say
-
Jacqueline Garol – Penn Valley, CA
We recently had the pleasure of working with Paz and his team for a complete exterior renovation, reconstruction and stabilization of structures. The project was big! His team was clean, courteous, communicative and professional. The work was completed with precision and there was no detail left unturned. The quality of craftsmanship was spectacular!
Services
Floor fitting, Home renovations, Deck construction, Roof repair, Exterior painting, Remodelling, Roof installation, Patio construction
We recently had the pleasure of working with Paz and his team for a complete exterior renovation, reconstruction and stabilization of structures. The project was big! His team was clean, courteous, communicative and professional. The work was completed with precision and there was no detail left unturned. The quality of craftsmanship was spectacular!
Services
Floor fitting, Home renovations, Deck construction, Roof repair, Exterior painting, Remodelling, Roof installation, Patio construction
-
Katherine Adams – CA
After a lot of research we hired Condor to address concerns inside and outside our home. The upstairs porch was draining down the front of our home and caused extensive internal framing damage. We also wanted a wall removed from the inside to open up our floor plan. Paz and Tal were extremely professional and they never once told is “no we can’t do that” (something other contractors said). I will let the before and after pictures speak for themselves. Will definitely hire them again when we need more work done!
Services
Floor fitting, Home renovations, Interior structural repairs, Service not listed
After a lot of research we hired Condor to address concerns inside and outside our home. The upstairs porch was draining down the front of our home and caused extensive internal framing damage. We also wanted a wall removed from the inside to open up our floor plan. Paz and Tal were extremely professional and they never once told is “no we can’t do that” (something other contractors said). I will let the before and after pictures speak for themselves. Will definitely hire them again when we need more work done!
Services
Floor fitting, Home renovations, Interior structural repairs, Service not listed
-
Jacqueline G. – Penn Valley, CA
I recently had the pleasure of working with Paz and his team. We had a complete exterior remodel from the roof, gutters, four decks, masonry, structural stabilization and rebuilding of our front entrance staircase. I have never experienced professionalism, communication, organization and sheer brilliance to this caliber. Their work was precise, clean and carefully crafted. Our home got topped off with a beautiful new paint job. It was a big job and they made it easy!
I recently had the pleasure of working with Paz and his team. We had a complete exterior remodel from the roof, gutters, four decks, masonry, structural stabilization and rebuilding of our front entrance staircase. I have never experienced professionalism, communication, organization and sheer brilliance to this caliber. Their work was precise, clean and carefully crafted. Our home got topped off with a beautiful new paint job. It was a big job and they made it easy!
-
Yuli F. – CA
Condor Builders did an amazing job building our deck! Tal and his team were patient and helped us choose the right materials and design. We love how it turned out and highly recommend them!
Condor Builders did an amazing job building our deck! Tal and his team were patient and helped us choose the right materials and design. We love how it turned out and highly recommend them!
Condor Builders Serving Greater NorCal Area
ADU Questions - El Dorado Hills, CA
Q: What are the ADU rules in El Dorado County?
El Dorado County has some of the most homeowner-friendly ADU regulations in California. Key rules include: no setbacks required for converted JADUs and attached ADUs; detached ADUs require only a 4-foot setback from side and rear property lines; no height or design approval required at county level; no replacement parking required for garage conversions; no fire sprinklers required unless specifically deemed necessary; and ADUs up to 1,200 sq ft are permitted on most single-family lots. California state law requires El Dorado County to process complete ADU applications within 60 days.
Q: How much does an ADU cost in El Dorado Hills?
ADU costs in El Dorado Hills range from $40,000-$90,000 for a Junior ADU or interior conversion, $80,000-$160,000 for a garage conversion, and $190,000-$420,000+ for a detached ADU depending on size and site conditions. Sloped lots and septic system properties can add cost – both are common in El Dorado Hills and both are assessed honestly during the free site visit. Soft costs (design, engineering, permits) add $15,000-$40,000.
Q: How long does an ADU take to build in El Dorado Hills?
A garage conversion ADU in El Dorado Hills typically takes 6-10 months from start to certificate of occupancy. A detached ADU runs 10-18 months. California state law requires El Dorado County to act on complete ADU applications within 60 days – one of the strongest processing protections available. We prepare complete applications to maximize the chance of staying within that window.
Q: Do I need to replace parking if I convert my garage to an ADU in El Dorado Hills?
No. El Dorado County does not require replacement parking for garage conversions – removing one of the most common objections to this type of project. We confirm the specific rules for your parcel during the free site assessment.
Q: Does my El Dorado Hills property qualify for an ADU if it has a septic system?
Most properties with septic systems can still build an ADU – but the existing system must be assessed for capacity to handle the additional unit’s load. If the septic system needs expansion or a new system is required for the ADU, this affects both cost and timeline. We evaluate septic capacity as a standard part of our El Dorado Hills ADU feasibility assessment – before you commit to anything.
Q: What is the CalHFA $40,000 ADU Grant and can El Dorado Hills homeowners qualify?
The California Housing Finance Agency offers up to $40,000 to reimburse pre-development ADU costs – including permits, design, engineering, and site prep – for qualifying owner-occupants. Income limits apply (generally below 80% of Area Median Income for El Dorado County). Funding availability varies – ask us about current status during your free estimate consultation.
Q: Can I build an ADU in Serrano or other El Dorado Hills HOA communities?
Possibly – but HOA covenants in some El Dorado Hills communities may impose additional restrictions on ADU placement, design, or appearance beyond county requirements. We review your property’s HOA documents during the initial assessment and advise on any community-level restrictions. California state law does limit HOAs’ ability to outright prohibit ADUs, but design and placement restrictions may still apply.
Q: What areas near El Dorado Hills does Condor Builders serve for ADU construction?
We serve El Dorado Hills and surrounding communities throughout El Dorado County, Placer County, and Nevada County – including Cameron Park, Shingle Springs, Folsom, Granite Bay, Loomis, Auburn, Grass Valley, and beyond. Call (916) 755-2200 to confirm coverage for your specific location.
Ready to Build Your El Dorado Hills ADU?
Get a free site assessment and feasibility consultation from a licensed El Dorado County contractor who handles design, permits, and construction under one roof. We’ll visit your El Dorado Hills property, assess your lot – including terrain, septic, and HOA factors – and give you a realistic picture of cost, timeline, and financing options before you commit to anything.
CSLB Licensed #1103096 · El Dorado County Permit Experts · Serving El Dorado Hills & NorCal