Abodu ADU in San Dimas, CA | Ellery ADU Studio Pomona
We provide our Abodu services across San Dimas, from the flat ranch lots near historic downtown to the horse-zoned foothill parcels below Puddingstone Reservoir. Our one-contract design-build model covers Abodu specification, site prep, permit application, and set - with a written price before any work starts, per Haven Standard Clause 1. Call (657) 286-7915 to schedule your free estimate.
Why San Dimas Residents Choose Us for Abodu Service
We’ve specified and coordinated Abodu units since the brand first entered the San Gabriel Valley market. That means we know their panelized shell geometry, factory connection details, and finish specifications well enough to plan a compliant San Dimas set without the designer-versus-builder blame gap that derails most ADU projects.
Nadia Ellery, our owner, grew up in Santa Monica and came up through Santa Monica College’s drafting and construction technology program before spending the better part of two decades in design-build work across the Inland Valley. She and her crew logged significant time on Pomona projects within walking distance of the historic Fox Theater district, which is where she developed her preference for clear scopes and documented handoffs over verbal assurances. She runs Ellery ADU Studio on The Haven Standard: every cost range, every inspection checkpoint, and every deliverable written down before a shovel moves. If it is not written in the project documents, it is not part of the project.
We are not manufacturer-affiliated or authorized. We are an independent studio that sources Abodu OEM panels, seals, and trim where available, and matches discontinued profiles with equivalent-gauge, fire-rated aftermarket materials when factory parts are no longer supplied. Our license number appears on every page, and our crews are background-checked and uniformed. We also offer a Free Second Opinion on any written estimate already in hand.
San Dimas’s 1950s-1970s ranch homes on generous lots, combined with its unusual concentration of equestrian outbuildings, create ADU opportunities that don’t exist in denser San Gabriel Valley cities. We know both conditions firsthand.
Common Abodu ADU Problems We Solve in San Dimas

- Panel joint and seal failure in extreme heat. Abodu factory panel joints and weather seals dry and open under San Dimas’s regular 100°F+ summer temperatures in the Pomona Valley heat corridor. Water then intrudes along roof-to-wall seams during the winter rainy season. We reseal with OEM-compatible materials rated for inland thermal cycling, not coastal specifications.
- Condensation inside wall assemblies. Abodu units installed without upgraded mini-split cooling or deeper insulation struggle with moisture buildup in San Dimas’s dry-but-intense heat. The temperature delta between 105°F ambient and 72°F interior forces condensation at the thermal break. We specify mini-split capacity and insulation upgrades as standard on San Dimas sets, not optional add-ons.
- Foundation and utility stub-out shear. Where Abodu units sit on expansive clay soils or near Puddingstone conglomerate formations, slab movement can shear foundation bolts and utility stub-outs. We’ve seen this on foothill parcels off Puddingstone Drive, where cemented gravel shifts differently than alluvial flat soils. We engineer for that specific geology.
- Fire-hardening gaps on foothill parcels. San Dimas’s northern neighborhoods fall within Very High Fire Hazard Severity Zones under CAL FIRE mapping. Factory Abodu cladding and vent screening often don’t match local amendments without field modification. We handle that permit submittal and material upgrade as part of our standard scope.
- Equestrian outbuilding conversions off-code. Stables, barns, and tack rooms in San Dimas’s horse-zoned foothill areas were built to agricultural standards, not residential code. Converting them to ADU-ready pads for Abodu sets requires full habitability upgrades - insulation, egress windows, electrical, plumbing - that we coordinate under our single contract.
Abodu Service in San Dimas: What Local Conditions Mean for Your Equipment
San Dimas sits at a geological and climatic crossroads that shapes every Abodu project we take on here. The city straddles the alluvial flats of the Pomona Valley and the uplifted foothills of the San Gabriel Mountains, and that divide shows up in your construction budget in specific, nameable ways.
The most consequential is the Puddingstone conglomerate - the cemented gravel-and-rock formation that underlies the northern foothill neighborhoods near Puddingstone Reservoir and gives the reservoir its name. When trenching for sewer and water laterals to serve an Abodu unit, hitting this formation is not a matter of if but where. A standard trencher stops. We bring in rock-saw and breaker crews, then hand-grade to the Abodu set plan. The cost delta between a flat-lot utility connection and a foothill connection through Puddingstone can run substantial, and we price that in writing before work starts, not after the first augur stalls.
Summer heat is the other non-negotiable. San Dimas regularly records highs above 100°F, substantially hotter than coastal LA. An Abodu unit specified for a milder climate will fail here. We specify mini-split systems with adequate BTU capacity, upgraded wall insulation, and reflective roof detailing as baseline, not upgrades. The foothill fire zones add a third layer: CAL FIRE’s Very High Fire Hazard Severity Zone mapping triggers material requirements for exterior cladding, vent screening, and eave detailing that factory-standard Abodu specs may not satisfy without field modification. We handle those submittals.
This combination - hard rock trenching, extreme heat loading, and fire-hardening amendments - is why a generic Abodu page or a generic San Dimas ADU Design & Permitting page falls short. You need both bodies of knowledge in the same contract.
Abodu Models & Products We Service in San Dimas

We specify and coordinate the full current Abodu product line under our single design-build contract:
- Abodu One - studio and one-bedroom prefab units, typically set on compacted grade or stem-wall foundations
- Abodu Two - two-bedroom prefab units, requiring wider crane access and larger utility service
- Abodu garage conversion and backyard cottage configurations - adapted to San Dimas’s detached garage stock on 1950s-1970s ranch lots
- Abodu modular ADU shells - some with pre-installed kitchen and bath packages, others with site-finished interiors
Our parts approach is straightforward. We use Abodu OEM panels, seals, and trim where the factory still supplies them. Where a profile has been discontinued, we match with equivalent-gauge, fire-rated aftermarket materials that meet San Dimas’s amended code. Repair is our default on sound shells and cores. We advise replacement only when repeated water intrusion or foundation movement has compromised the structure.
For San Dimas clients, we stock common Abodu seal profiles and mini-split mounting hardware locally to minimize wait time on service calls.
Abodu Service Pricing in San Dimas
Every Abodu project we quote in San Dimas carries a written, line-item price before any work begins - Haven Standard Clause 1. No exceptions.
Typical ranges based on our San Dimas work:
- Abodu One prefab set (flat lot, standard utility connection): $185,000-$240,000 all-in, including permit set, foundation, utility trenching, and final inspection
- Abodu Two prefab set (flat lot, standard utility connection): $265,000-$340,000 all-in
- Site prep and grading on Puddingstone conglomerate: add $8,000-$18,000 depending on lateral length and rock depth
- Mini-split cooling upgrade (required for San Dimas heat): included in our baseline specification, not an add-on
- Equestrian outbuilding conversion to ADU-ready pad: $45,000-$85,000 before Abodu unit cost, depending on existing structure condition and code gap
What drives cost: geology (Puddingstone hit or no), utility lateral length, fire-hardening material requirements in foothill zones, and whether the existing structure needs demolition or can be adapted. Our free estimate includes a site walk, soil assessment, utility routing plan, and written scope with every line item named. Call (657) 286-7915 for an exact quote - estimates are free.
Serving San Dimas, CA - Our Local Coverage Area

We’re based in the San Dimas 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 - Abodu ADU in San Dimas
Yes, with conditions. The horse-zoned lots near Puddingstone Reservoir are some of the most conversion-ready ADU candidates in the San Gabriel Valley, but existing stables and tack rooms were built to agricultural standards. We convert them to residential-code pads with proper insulation, egress, electrical, and plumbing before the Abodu unit is set. Call (657) 286-7915 to schedule a site assessment - estimates are free.
No. San Dimas’s regular 100°F+ summer highs in the Pomona Valley heat corridor make robust cooling near-mandatory for livable ADUs. We specify mini-split systems with adequate BTU capacity as baseline in every San Dimas quote, not as an optional upgrade. Call (657) 286-7915 for a written specification - estimates are free.
It can sharply increase trenching cost and duration. The cemented gravel-and-rock formation beneath northern San Dimas stops standard trenching equipment. We bring in rock-saw and breaker crews, then hand-grade to the Abodu set plan. We identify Puddingstone risk during our free site assessment and price it in writing before work starts. Call (657) 286-7915 to schedule - estimates are free.
Yes. Permit application and permit set preparation are core to our design-build model, not an afterthought. We handle San Dimas Planning, Building, and Fire department submittals, including CAL FIRE fire-hardening amendments for foothill parcels. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing; no door-side upsells, no scope creep.
Yes. San Dimas’s 1950s-1970s ranch homes often have detached garages well-suited to conversion. We assess slab thickness, roof structure, and setback compliance, then quote a written price for our Garage Conversion ADU in San Dimas scope. Where the existing structure is sound, we may adapt Abodu interior packages and finishes to the converted shell. Call (657) 286-7915 for an exact quote - estimates are free.
Service Areas Near San Dimas

We specify and coordinate Abodu units across the eastern San Gabriel Valley and western Inland Empire. Our San Dimas service area covers the full city from historic downtown to the Puddingstone Reservoir foothills. We also provide Abodu service in Pomona, where Nadia Ellery and her crew developed their design-build practice near the Fox Theater district, and Abodu service in Montclair, along with Diamond Bar, Upland, and Covina. Each city carries its own permit requirements, soil conditions, and fire zone mapping; we price for the specific location in writing.
Book Your Abodu Service in San Dimas Today
Call (657) 286-7915 to schedule your free estimate. A live person answers 24/7. We’ll walk your San Dimas property, assess your specific conditions - flat lot or foothill, existing structure or green pad - and return a written, line-item price before any work begins. Every project includes a documented photo record on every visit and our 365-Day Done Right Promise: if the finished ADU is not built to the permitted drawings, we make it right, in writing.
Written by Nadia Ellery, Owner at Ellery ADU Studio Pomona, serving San Dimas and the Pomona Valley since 2015.