Dvele Junior ADU & Interior Conversion in Santa Clarita: What to Know First
We provide independent Dvele junior ADU and interior conversion services in Santa Clarita, typically completing feasibility through permit submission in 8-14 weeks depending on L.A. County plan check cycles. Every project carries a written price before any work begins, per Haven Standard Clause 1. This page is for Dvele owners in Santa Clarita who need to convert existing interior space - basements, above-garage areas, attached rooms, or interior garage bays - into permitted junior ADUs, and who want the drawings and construction handled under a single contract with no designer-builder blame gap. Call (747) 294-4817 to schedule your free estimate.
How Dvele Products Fail - and How We Fix Them
- Series 1 wall-panel moisture intrusion at floor connections. Dvele’s early Series 1 panels used a gasket interface that compresses unevenly on Santa Clarita’s expansive clay soils, particularly in Canyon Country lots east of Soledad Canyon Road where seasonal soil movement runs 2-4 inches. We strip the affected panels, install a fluid-applied membrane with a termination bar, and re-seal with Dvele-compatible SikaFlex 221 or an equivalent spec’d for California Title 24 thermal bridging requirements.
- Series 2 HVAC integration failures in above-garage conversions. The Series 2’s factory-ducted mini-split chase is sized for open-plan layouts; when we convert above-garage space to a JADU, the static pressure jumps and the Fujitsu or Mitsubishi unit short-cycles. We recalculate Manual J loads for the partitioned space, resize duct runs, and coordinate with Dvele’s chase dimensions - or specify a dedicated wall-mounted head if the chase can’t be modified without voiding the panel warranty.
- Smart-home backbone incompatibility with L.A. County fire-separation requirements. Dvele’s centralized low-voltage hub, standard in Series 2 and 3, runs through wall cavities that must be fire-blocked per Santa Clarita’s amended CBC Chapter 7. We’ve developed a hub-relocation detail that maintains Cat 6A and 12V trunk continuity while meeting one-hour fire separation - submitted and approved on three Santa Clarita plan checks since 2022.
- Series 3 window-wall deflection in room-to-ADU conversions. The Series 3’s 10-foot window wall uses a headerless aluminum frame system that performs fine in freestanding placement but transfers live-load deflection when tied into existing stick framing. We sister the existing header with LVLs sized for the new load path, document the connection in the permit set, and verify deflection stays under L/360 per the structural calc - the drawing set either clears the counter or it doesn’t. We build ones that do.
- Floor-panel edge delamination in basement ADU conversions. Dvele’s magnesium-oxide subfloor panels, used across Series 1-3, wick moisture where the factory edge seal is compromised during site modification. In Santa Clarita’s dry climate this is rare, but basement conversions in the Valencia hillside zone hit seasonal groundwater tables that activate latent edge damage. We probe with a moisture meter, cut back to sound panel, and specify an epoxy-modified cementitious overlay that bonds to MgO and meets the JADU floor finish spec.
Our Dvele Junior ADU & Interior Conversion Process

- 1
Feasibility and existing conditions survey. We document your Dvele unit’s series, panel condition, and integration points with a photo record you receive same day. Nadia Ellery reviews the as-built against Santa Clarita’s JADU ordinance - maximum 500 square feet, within the existing structure, separate entrance required.
- 2
Permit set as core product. Our architectural drafters produce the full plan check submission: floor plan, electrical, plumbing, Title 24 energy compliance, and structural where we’re modifying Dvele panel connections. One revision cycle is typical; three have cleared first-pass.
- 3
Single-contract pricing. You receive a written price covering design, permitting, and construction - no separate designer invoice, no builder change orders. Haven Standard Clause 1.
- 4
Construction with Dvele-specific protocols. Our crews use Dvele’s published panel fastener pattern and torque spec; we don’t improvise. OEM panel replacements come from Dvele’s parts channel with 4-6 week lead times; we stock compatible aftermarket seals and gaskets for faster turnaround when the warranty allows.
- 5
Inspection coordination and closeout. We pull permits, meet inspectors, and deliver final documentation: signed-off permit card, photo record of concealed work, and the 365-Day Done Right Promise in writing.
- 6
Warranty activation. Any Dvele OEM work is documented for your warranty file; our workmanship warranty runs parallel, no gaps.
What Dvele Junior ADU & Interior Conversion Costs in Santa Clarita
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Interior room-to-JADU conversion (Series 2 or 3, no structural modification) | $85,000-$140,000 | Bathroom addition, separate entrance cut, electrical service upgrade |
| Above-garage JADU with Dvele panel integration | $120,000-$195,000 | Floor reinforcement for garage, HVAC chase modification, stair access |
| Basement ADU with moisture remediation | $110,000-$175,000 | Extent of MgO panel replacement, sump pump requirement, egress window |
| Attached addition ADU tying into existing Dvele structure | $145,000-$220,000 | Foundation type, fire-separation detail, utility trenching |
These ranges include design, permit fees, and construction through final inspection. The price is locked at signing - no door-side upsells, no scope creep, per Haven Standard Clause 5 (No Surprises). Call (747) 294-4817 for your exact written quote; estimates are free.
Why Santa Clarita Homeowners Call Ellery ADU Studio Santa Clarita for Dvele Work

We’ve worked the Santa Clarita Valley since 2015, including Canyon Country lots where most contractors won’t quote. Our crews know Dvele’s panel vocabulary - MgO, aluminum frame, gasket interface - and we specify Abodu and Cover systems too, so if your Dvele unit is incompatible with your conversion goals we can pivot without sending you to a second design firm. The 365-Day Done Right Promise covers every project: if it’s not built to the permitted drawings, we make it right. A live person answers calls 24/7. Our license number appears on every page, verified, not just claimed.
FAQs
Modifications to Dvele’s structural panels, electrical chase, or envelope typically void the original warranty on affected components. We document every cut, fastener, and sealant for your records and use Dvele-compatible materials where possible to preserve warranty coverage on unmodified sections. Call (747) 294-4817 to review your specific series and warranty status.
Construction typically runs 10-16 weeks after permit issuance; Santa Clarita’s L.A. County plan check adds 6-12 weeks depending on submission completeness. Our permit sets clear first-pass more often than not, which keeps you out of the revision queue. Call (747) 294-4817 for a timeline based on your series and conversion type.
Yes, through Dvele’s parts channel with 4-6 week lead times. We also stock compatible aftermarket seals and gaskets for faster turnaround when the warranty is already voided or when time matters more than OEM provenance. We explain the trade-off before you decide. Call (747) 294-4817 to discuss parts strategy for your project.
Repair is almost always more economical for JADU work, since the unit is becoming interior space and full weathering performance is less critical. Replacement makes sense only when panel damage exceeds 40% of surface area or when structural integrity is compromised - rare in Santa Clarita’s dry climate. We assess and quote both paths honestly. Call (747) 294-4817 for a written comparison.
Yes. We specify and coordinate Abodu, Cover, and other prefab systems under the same single-contract model, so a future detached ADU or garage conversion uses the same permit-ready process and written pricing. Your file stays active. Call (747) 294-4817 to plan phased work.
Written by Nadia Ellery, Owner & Principal Designer, Ellery ADU Studio Santa Clarita at Ellery ADU Studio Santa Clarita, serving Santa Clarita and nearby areas.