Fast, Reliable New Detached ADU Across Clovis
A new detached ADU in Clovis typically runs $245,000 to $385,000 all-in, from architectural drawings through final inspection, depending on size, site conditions, and whether your HOA requires a ghost garage façade. We design, permit, and build the entire project under one contract at one written price, so the designer and the builder answer to the same standard. If you’re researching a detached unit in Harlan Ranch, Loma Vista, or anywhere in the 93611 or 93619 zip codes, call (971) 497-2402 and we’ll walk you through what your specific lot will actually cost.
Most Clovis detached ADU projects take 9 to 14 months from first survey to certificate of occupancy. The city permit review runs 3 to 5 months, HOA architectural review adds 4 to 8 weeks, and construction itself runs 5 to 7 months. We know the planning counter staff at City Hall on Fifth Street, we know which HOA committees in north Clovis ask for material samples, and we know which of your neighbors already have an ADU you can walk through before you commit.
Why Ellery ADU Studio Is Clovis’s Preferred New Detached ADU Company
Ellery ADU Studio has designed, permitted, and built 900+ ADUs since 2015, every one with a written price before work started and a documented photo record when work was complete. Nadia Ellery leads the studio the same way she did when California’s ADU permitting landscape shifted that year: the permit set is the product, not an afterthought. In Clovis, that matters more than in most cities, because you’re navigating two approval tracks at once, the City of Clovis and your HOA’s architectural committee.
Our crews work in Clovis every week. We’re at the Building Safety Division counter regularly, we’ve sat through architectural review committees in Harlan Ranch and Loma Vista, and we’ve built enough detached units here to know which stucco color matches which builder’s palette in which phase of which development. That’s not something we list on a brochure. It’s what keeps your HOA review from bouncing back twice.
Every project we take in Clovis is governed by The Haven Standard, the written terms we’ve used since 2015. Clause 1 locks a written price before any work begins. Clause 5 locks the scope at signing, no door-side upsells, no scope creep. Clause 7 is the 365-Day Done Right Promise: if the finished ADU isn’t built to the permitted drawings, we make it right, in writing, before the project starts.
Our New Detached ADU Services in Clovis
Custom Built ADU
A custom detached ADU in Clovis gives you control over the roofline, the window placement, and the interior layout, which matters on the odd-shaped lots east of Clovis Avenue where setback variances come into play. We handle the variance paperwork, the fire sprinkler calcs, and the structural engineering as one package. Clovis lots in the 1950s-era subdivisions near Old Town often run wider than deep, so a custom footprint can fit where a standard prefab box will not.
1-Bed & 2-Bed ADU
One-bedroom detached units in Clovis typically run $245,000 to $295,000. Two-bedroom units run $300,000 to $385,000. The price gap comes from square footage, panel capacity, and whether the unit needs its own gas line or can run all-electric, which we recommend here anyway given valley air quality rules. On a 2004 tract lot in Loma Vista, the 2-bed we permitted came in at 740 square feet with a mini-split, an EV-ready subpanel, and a ghost garage door to satisfy the HOA.
Prefab ADU Installation
We specify and coordinate prefab systems from Abodu, Cover, and Dvele for Clovis lots where site access is tight or the homeowner wants a shorter construction window. A prefab detached unit can cut 3 to 5 months off the build timeline compared to stick-framed construction. The catch in Clovis is that prefab still has to pass the same HOA architectural committee, and we’ve seen committees reject panel-and-batten exteriors outright because they don’t match the neighborhood’s stucco-and-tile palette. We navigate that before you buy the unit, not after.
Modular ADU
Modular construction splits the difference between custom and prefab. The modules are built off-site to our drawings, then set and finished on your Clovis lot. For a detached unit in a north Clovis master-planned community, modular makes sense when you need a specific roofline or eave detail to match the main house, details that a box prefab can’t do. We handle the crane scheduling, the utility tie-ins, and the city’s modular inspection requirements under the same single contract.
Studio ADU
A detached studio ADU in Clovis can run as low as $195,000 if the site is flat, the panel has capacity, and there’s no HOA façade requirement. That’s the entry point, not the average. Studio units are popular for rental income near Fresno State and Clovis Community College, but the rental math changes if your HOA restricts leases shorter than 12 months, which some Clovis CC&Rs still do.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Clovis
We specify and coordinate prefab and modular systems from Abodu, Cover, and Dvele for our Clovis clients. These are the three brands we’ve seen hold up best to valley heat and valley permitting, and we know each company’s structural engineering package well enough to submit a clean permit set the first time. We also work with Mighty Buildings when a client wants a panelized steel system. The brand matters less than the site plan, the HOA submittal, and the HVAC sizing, and we handle all three under the same written price.
Common New Detached ADU Problems We See in Clovis Homes
- Undersized mini-splits failing during 105-112°F heat waves. A standalone ADU has no shared thermal mass from the main house, so the cooling load is higher than a square-footage calculator suggests. We size the system for the valley’s actual peak, not a coastal default.
- HOA architectural review rejections. A detached ADU in Harlan Ranch or Loma Vista that doesn’t match the main house’s stucco color, roof tile, or window trim will bounce back. We submit a façade package before construction drawings are final so the committee sees exactly what their neighbors will see.
- 1990s-era electrical panels that can’t carry a second dwelling. Homes built before about 2005 in Clovis often have a 100-amp panel. A new detached ADU with a mini-split, water heater, and kitchen circuits needs 200 amps, and the city will fail the rough-in inspection if the panel isn’t upgraded first.
- CC&R parking mandates that state law voids but HOA committees still enforce visually. The workaround is a ghost garage door, a non-functional door we install over the new ADU entrance. It satisfies the committee without forcing you to keep three actual covered parking spaces. We’ve done this exact finish multiple times in north Clovis.
Pricing for New Detached ADU in Clovis, CA
A new detached ADU in Clovis runs $195,000 to $385,000 depending on size and scope. A studio starts around $195,000. A one-bedroom runs $245,000 to $295,000. A two-bedroom runs $300,000 to $385,000. Those numbers assume a standard lot, no major grading, and a 200-amp panel or an upgrade we budget for. If you’re in an HOA community that requires a ghost garage façade, add $12,000 to $18,000 for the non-functional door, framing, and matching trim. If you’re on an Old Town lot with a 1950s-era panel and overhead service, add $6,000 to $10,000 for the electrical upgrade. Every estimate is a written line-item price under Haven Standard Clause 1, before any work begins. Call (971) 497-2402 and we’ll send you the actual numbers for your lot, not a range.
We Also Serve Cities Near Clovis
Our New Detached ADU team serves Clovis and the surrounding Central Valley cities. If your property is in Clovis, Fresno, Madera, Reedley, or Hanford, we can bring the same written-price, one-contract model to your project. Dispatch and scheduling are coordinated from our Fresno, Central Valley office, and crews serve Clovis locally.
Serving Clovis, CA - Our Local Coverage Area
We’re based in the Clovis area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - New Detached ADU in Clovis
No. California state law voids CC&R parking mandates that were written before the state’s ADU reform laws, so your HOA cannot legally require you to keep three covered parking spaces for an ADU conversion. What the HOA can still do is control the exterior appearance, which is why we routinely install a non-functional ghost garage door over the new ADU entrance in north Clovis communities. It satisfies the architectural committee while the city sees a code-compliant dwelling. Call (971) 497-2402 to talk about whether your specific CC&Rs trigger this requirement.
Only if it’s sized for Clovis’s actual peak load, not a generic California default. A detached ADU has no shared thermal mass from the main house, so the cooling demand runs higher than the square footage suggests. We spec a unit rated for 105-112°F operation and add enough capacity to hold 78°F indoors on the hottest days. An undersized low-SEER unit will fail, and you’ll pay for it in August. We include the specific model and BTU rating in every written estimate so you can verify it before signing.
The coastal-spec version runs about 6-9% higher on the total project cost. In Clovis, the extra goes to hot-dip galvanized hardware, marine-grade exterior trim, a high-SEER HVAC system sized for valley heat, and whole-house ventilation with filtration capable of handling San Joaquin Valley particulate. The inland-spec version skips those upgrades and looks cheaper on paper, but the cheap hardware rusts, the cheap HVAC fails in year three, and you’re back paying for replacements within a decade. We quote the coastal-spec by default in Clovis because the valley climate is the real corrosion driver here, not the coast.
Not as a blanket rule, but in practice, yes for most 1950s-1970s ranch homes near Old Town. If your main panel is 100 amps, which most of those homes still have, the city will fail the rough-in inspection until you upgrade to 200 amps and show capacity for the ADU’s circuits. We budget the panel upgrade into the written price when we see the existing service during the initial site visit. You’ll know the line item before you sign, not after the inspector shows up.
If the HOA’s architectural committee rejects the exterior, the prefab unit doesn’t get built, period. State law stops the HOA from banning ADUs outright, but the committee still controls exterior appearance and can bounce a panel-and-batten prefab that clashes with the neighborhood’s stucco-and-tile palette. We submit façade renderings and material samples to the committee before you commit to the unit, and if the match isn’t workable, we pivot to a modular or custom design that will pass. The written price covers the submittal work either way.
The Ghost Garage Workaround: What It Costs and How It Changes Your Permit Path
Here’s the Clovis-specific fact that a generic ADU page will never tell you. In north Clovis HOA communities like Harlan Ranch, the CC&Rs for your tract were written before California’s ADU reform laws. Many of them required three covered parking spaces per home. State law now voids that parking mandate for ADU conversions, but the HOA’s architectural committee still controls exterior appearance, and committees routinely require the converted garage to keep a garage-door-style façade. The workaround is a ghost garage door: a non-functional, fixed door installed over the new ADU entrance. It looks like a garage door from the street, it satisfies the committee, and the city sees a code-compliant dwelling behind it. Budget $12,000 to $18,000 for the door, the framing, and the matching trim. On a 2004 two-story stucco tract home in Loma Vista, our crew did exactly this while converting a three-car garage into a detached ADU. The committee required the original garage-door look, so we installed a ghost garage door over the new entry. Inside, we upgraded the 100-amp main panel to 200 amps to support the second dwelling’s mini-split and an EV-ready subpanel. That’s the Clovis-specific path, and it changes your permit timeline, your material spec, and your final cost.
Why Clovis Weather Dictates the Spec Sheet
Clovis sits in the San Joaquin Valley, and the summer high of 105-112°F is not an edge case, it’s July. A detached ADU has no shared thermal mass from the main house, so the cooling load runs higher than an attached unit of the same square footage. We size the mini-split for the valley’s actual peak, not a coastal default, and we spec a high-SEER unit that maintains 78°F indoors during a heat wave without cycling itself to death. The valley also carries some of the nation’s worst particulate air quality under San Joaquin Valley Air Pollution Control District jurisdiction, so whole-house ventilation and filtration choices draw more scrutiny here than in coastal California cities. The coastal-spec version of a Clovis ADU runs 6-9% higher than the inland-spec, and we quote the coastal-spec by default because the cheap spec costs more within a decade.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Clovis since 2015.
Call (971) 497-2402 to schedule your free estimate for a new detached ADU in Clovis. A live person answers, and every estimate is a written line-item price under Haven Standard Clause 1.