ADU Company in Hemet, CA
An accessory dwelling unit (ADU, a second smaller home on your existing lot) in Hemet usually costs $180 – $420 per square foot depending on whether you go with a prefab unit, a garage conversion, or a custom build. Hemet’s housing stock and climate change the math on that number more than most homeowners expect. This page is a straight overview of what ADU work looks like in Hemet specifically: what’s different about the lots, what things actually cost here, and where Lodgewick ADU Builders fits into the picture. For free estimates and written pricing, call (254) 602-5618.
Why Hemet Homes Are Different
Hemet’s housing stock was largely built between the 1970s and 1990s, during the retirement-community boom. That means most lots are 7,000 to 10,000 square feet with wide side yards and generous backyards – genuinely good conditions for detached ADUs. The dominant home type is the single-story stucco ranch, typically slab-on-grade, with rooflines and utilities that usually don’t fight a well-planned ADU. But a meaningful share of Hemet’s inventory is manufactured or HUD-code homes, and those are a different animal entirely. They can’t take an attached ADU at all under current rules, and detached units on those lots run into stricter setback and foundation requirements. If your home is manufactured, that fact alone changes the permit path.
The harder constraint is septic. Many older Hemet neighborhoods east of downtown never connected to city sewer, and their private septic systems were sized for one 1970s household. A Riverside County Environmental Health septic-capacity review is often the first thing the building department asks for, and if the system is undersized – which most are – the ADU can’t proceed until an upgrade or a sewer-lateral extension is engineered. That step routinely doubles the permit timeline compared to what online estimates suggest for Southern California broadly. It’s not a dealbreaker, but it’s the kind of thing you want to know before you start drawing plans.
Our Main Hemet Services
Hemet homeowners call Lodgewick most often about three projects, and each has its own dedicated Hemet page with deeper pricing and local detail.
Home Addition Contractor in Hemet
Home additions in Hemet are usually about keeping an aging parent close without changing the character of the existing house. The typical Hemet ranch home has lateral room to work with, so we’re often adding a bedroom and sitting area off the rear of the house rather than building up. Climate matters here: a Hemet addition needs real insulation and an HVAC line sized for 110-degree July afternoons, not a token window unit. Every addition starts with a written, line-item price before any work begins. Read the full Hemet-specific breakdown on our Home Addition Contractor in Hemet page.

Garage Conversion Contractor in Hemet
Garage conversions are the most budget-sensitive ADU route in Hemet because the shell already exists. The catch in Hemet is that many 1970s-era garages sit on slabs with no insulation, no moisture barrier beneath the slab, and electrical panels that predate modern code. Converting one properly means addressing all three – plus the flatwork at the driveway that now has to work for year-round living. We price these as a fixed number in writing before we touch the door. See the full breakdown on our Garage Conversion Contractor in Hemet page.

ADU Builders in Hemet
ADU builds in Hemet divide into two paths: prefab units delivered to a prepared site, and stick-built units framed on your lot. Hemet’s wide lots and single-story setbacks favor both, but the septic question is the first fork in the road on most properties. We work with brands like Cover and Boxabl for prefab delivery, and do stick-built framing for custom floorplans. The Kingswell Guarantee applies either way: written price first, written guarantee before work starts. Details and specific price ranges are on our ADU Builders in Hemet page.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Hemet
We service and install units from Cover, Boxabl, Dvele, and Mighty Buildings, and we stock common replacement parts for these systems locally so warranty and post-install work doesn’t stall waiting on a shipment. Our brands page lists the full lineup and what each one fits best.
Pricing for ADU Company in Hemet, CA
| Service | Typical range in Hemet |
|---|---|
| ADU (prefab, basic finish) | $180 – $280 per sq ft |
| ADU (stick-built, custom) | $320 – $420 per sq ft |
| Prefab ADU unit only (materials) | $90,000 – $190,000 for 400 – 800 sq ft |
| Garage conversion (attached, basic) | $95,000 – $150,000 |
| Garage conversion (detached, full ADU) | $140,000 – $190,000 |
| Home addition (bedroom & bath) | $110,000 – $190,000 |
| Septic capacity upgrade (perc test + system) | $18,000 – $45,000 |
| Sewer lateral extension (if city sewer nearby) | $15,000 – $40,000 |
| Foundation for detached ADU (site-built pad) | $12,000 – $28,000 |
| HVAC installation (zoned for ADU) | $9,000 – $18,000 |
Septic work and foundation costs are the two big variables in Hemet that catch people off guard – they are not always visible in the initial square-footage estimate. Lodgewick’s written price covers the entire scope, including any septic or foundation work we can identify during planning, so there’s no door-knock surprise later.
Neighborhoods We Serve in Hemet
We work across Hemet and its surrounding communities, with crews dispatched locally from our Inland Empire Metro office. The neighborhoods below are representative – if your street isn’t listed, call and ask. We’re still in your area.
- East Hemet (east of State Street, older septic-heavy lots)
- Diamond Valley (newer builds, post-1990s)
- Hemet Valley Estates (large lots, wide rear yards)
- Mayberry (manufactured-home stock, stricter ADU rules)
- Downtown Hemet core (narrow lots, attached-ADU emphasis)
Most estimate visits in the Hemet area are scheduled within 3 to 7 business days.
Service Area – Cities Near Hemet
Lodgewick ADU Builders serves the San Jacinto Valley and the communities around it. If you’re in San Jacinto, CA, Homeland, CA, Nuevo, CA, or Menifee, CA, the same written-price, written-guarantee process applies. Call (254) 602-5618 and tell us which city you’re in – the permitting and septic rules differ from one jurisdiction to the next, and we’ll walk you through what that means for your lot.
Serving Hemet, CA - Our Local Coverage Area
We’re based in the Hemet 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 About ADU Company in Hemet
Most estimate visits in Hemet are scheduled within 3 to 7 business days. If you need a faster answer on feasibility (septic status, lot size, zoning), we can often do a lot-record check over the phone first, then schedule the site visit. Call (254) 602-5618 and ask for that pre-check.
If your home is still on a private septic system, likely yes. Riverside County requires a septic-capacity review before most ADU permits issue, and 1970s-era systems are almost always undersized for an added dwelling. The upgrade or sewer-lateral extension adds cost and time, and we’ll confirm your situation in writing before you commit.
Every project carries the 365-Day Done Right Promise in writing. If the work isn’t done right, we come back and make it right within the first year – no cost, no questions. For a free estimate on your Hemet lot, call (254) 602-5618.
Ready to get a written price for your Hemet project? Call (254) 602-5618 and ask for a free, no-obligation estimate. One call gets you a straight answer, a real number, and a written commitment before any work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hemet Customers Say
"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild"Garage conversion into a studio for our teenager. Honest about what was realistic and what wasn't, finished close to schedule, and cleaned up the site daily."
- Marcus Beaumont