ADU Builders in Rolling Hills CA
ADU Builders | Rolling Hills CA | Garage Conversion & Home Addition Contractors
Looking for a licensed ADU builder in Rolling Hills, CA? EZ ADU Builders CA designs, permits, and constructs accessory dwelling units, garage conversions, backyard cottages, and home additions for Rolling Hills homeowners. Our fixed-price design-build model means a single contract, a single team, and a single timeline from feasibility to final inspection.
Why Rolling Hills homeowners choose EZ ADU Builders CA
Rolling Hills homeowners trust us because we specialize exclusively in ADUs across Los Angeles County. We know the local plan-check process, neighborhood architectural patterns, lot challenges, and utility tie-in requirements that make every Rolling Hills project unique.
Whether you want to convert a garage in Rolling Hills into a permitted rental, add a backyard cottage for family, or build a brand-new detached ADU for long-term value, we have the local experience and California licensing to deliver it on time and on budget.
Building an ADU in Rolling Hills
Rolling Hills is a gated, deliberately rural city atop the Palos Verdes Peninsula — large ranch parcels, horse trails, no sidewalks, and custom homes set far back on lots measured in acres. The community has preserved its equestrian, country character for generations, and properties here are among the most spacious in the county.
On estates this size, ADU projects are about placement and design quality. Detached guest houses, pool cottages, and staff or family quarters can be sited for privacy and views, and existing outbuildings — garages, barns, workshops — sometimes convert into living space. We design these projects to match the main residence's architecture and to respect the community's rural character. The community's gated lanes and open ranch land make privacy between structures easy to achieve.
ADU services we offer in Rolling Hills
Complete ADU & home addition services
From garage conversions to fully detached new builds, we design, permit, and construct every type of accessory dwelling unit in Los Angeles County.
ADU Design Build
Full design-build ADU services from architectural plans to keys-in-hand construction in Los Angeles.
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Detached ADU
New-construction detached ADUs up to 1,200 sq ft built on your Los Angeles property.
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Prefab ADU
Factory-built modular ADUs delivered and installed in weeks, not months.
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Tiny House with Garage
Compact ADUs paired with attached garage or carport — ideal for narrow LA lots.
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Tiny Office
Backyard office studios for remote work, podcasting, or creative practice.
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Backyard Cottage
Charming backyard cottages designed for rental income or extended family.
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In-law Suite
Attached and Junior ADUs for parents, grandparents, or adult children.
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Garage Conversion
Convert your existing garage into a fully permitted living space or rental unit.
Learn moreAnswers for Los Angeles homeowners
Common questions about ADU costs, permits, and timelines.
213-816-6012How much does an ADU cost in Los Angeles?+
ADU construction in Los Angeles ranges from $90,000 for a basic garage conversion to $450,000+ for a custom-built detached 1,200 sq ft ADU. Most of our clients invest between $180,000 and $300,000 for a turnkey project including permits, design, and finishes.
How long does it take to build an ADU?+
A typical detached ADU takes 6–9 months from permit submittal to final inspection. Garage conversions are faster — usually 3–4 months. Prefab ADUs can be installed in as little as 8 weeks once site prep and permits are complete.
Do I need a permit to build an ADU in Los Angeles?+
Yes. All ADUs require a permit from LADBS or your local city building department. State law makes the approval process ministerial — meaning if your plans meet code, the city must approve them. We handle the entire permit process for you.
Can I rent out my ADU?+
Yes. California state law allows you to rent your ADU long-term (30+ days). Short-term rentals like Airbnb depend on your local city ordinance — Los Angeles has additional restrictions.
Will an ADU increase my property taxes?+
Only the newly built ADU is reassessed. Your existing home keeps its current Prop 13 tax basis. Most homeowners see a tax increase of $1,500–$3,500 per year, depending on the ADU's assessed value.
What's the difference between an ADU and a Junior ADU (JADU)?+
A JADU is a unit up to 500 sq ft created within the walls of your existing home, with its own entrance and kitchenette. ADUs can be detached, attached, or converted and up to 1,200 sq ft.
Where should a guest house go on a large Rolling Hills parcel?+
Placement depends on access, utilities, views, and how the unit will be used. We walk the property with you and model siting options so the unit gains privacy without disrupting the estate's layout or rural character.
Can a barn or workshop on my Rolling Hills property become living space?+
Often, yes. Barns, workshops, and garages can sometimes be converted if they are sound enough to bring up to residential standards. We inspect the structure and give you an honest assessment first.
Trusted by Los Angeles homeowners
"EZ ADU Builders turned our old garage into a beautiful 1-bedroom rental in under four months. The team handled every permit and we never had to chase them. Already paying our mortgage with rental income."
"We needed an in-law suite for my mother. The crew was respectful, on-time, and the quality is incredible. Best decision we made for our family."
"Built a 900 sq ft detached ADU in our backyard. The design-build process was painless — fixed price, clear timeline, no surprises. Highly recommend."
"Professional from day one. Permits took longer than expected (city's fault, not theirs) but EZ ADU stayed on top of everything. The finished cottage looks like a magazine cover."
"Backyard office for my therapy practice — sound insulated, beautifully finished, permitted. Completed in 9 weeks. Worth every penny."
"Prefab ADU installed in our backyard. The set day was incredible to watch and we were move-in ready six weeks later. Top notch communication throughout."
EZ ADU Builders CA — serving Rolling Hills
Request your free ADU consultation
Tell us about your lot and goals. We'll respond within one business day with next steps and a rough budget range.
- 213-816-6012
- Mon–Sat 8:00 AM – 7:00 PM
- 527 W 7th St, Los Angeles, CA 90014
ADU builders serving all of Los Angeles County
We build ADUs, convert garages, and design home additions in every incorporated city in LA County. Find your city below.