Dvele Junior ADU & Interior Conversion in Irvine: What to Know First
We provide independent Dvele junior ADU and interior conversion services in Irvine, typically completing design and permitting in 8-14 weeks and construction in 12-20 weeks depending on the existing structure condition. Every project starts with a written price before any work begins, per Haven Standard Clause 1. This page is for Irvine homeowners who already own a Dvele prefab system and need it integrated into a junior ADU or interior conversion, not for those shopping for a new module. We are not affiliated with or authorized by Dvele. We work with their systems daily, and we know where they integrate cleanly and where they need custom detailing. Call (657) 233-9738 to schedule your free estimate.
How Dvele Products Fail - and How We Fix Them
- Dvele V1 Series: HVAC integration gaps in room-to-ADU conversions. The V1’s compact mechanical chase was designed for standalone placement, not for tying into an existing home’s ductwork in an interior conversion. We see this in Irvine’s older Orchard Hills and Woodbridge Village homes where homeowners want a garage-adjacent JADU. Our fix: we spec a dedicated mini-split system with its own condensate drain, documented in the permit set so the city doesn’t flag it as an illegal modification of the original Dvele mechanical design.
- Dvele V2 Series: Floor-level discrepancies in above-garage ADUs. The V2’s raised subfloor system creates a 4.5-inch step up from typical garage slab heights. In Irvine, where many garage conversions must maintain ceiling height for code compliance, that step eats headroom. We address this by engineering a lowered bearing assembly or specifying a custom ramped entry, both drawn into the permit set with load calculations included.
- Dvele V3 Series: Window-wall failures in basement ADU installs. The V3’s standard window package assumes above-grade installation with standard weep drainage. In basement conversions common in Irvine’s lower-lying Northwood and University Park areas, hydrostatic pressure pushes water through the sill track. We replace the OEM sill pan with a custom-flashed subsill and specify marine-grade sealant, noting the deviation on the permit drawings so inspectors understand the change.
- Dvele Smart Home Hub: Network dependency in attached addition ADUs. The hub’s factory firmware defaults to the primary residence’s network, which fails when the JADU is metered separately or has its own utility account. We’ve seen owners in Portola Springs lose climate control because the hub drops offline. Our fix: we spec a dedicated network drop with a separate router, drawn into the electrical plan and coordinated with Dvele’s low-voltage diagram.
- Dvele exterior cladding: Thermal expansion noise in Irvine’s temperature swings. The factory fiber-cement panel gap spacing works in moderate climates but gaps open and close audibly during Irvine’s 30-degree daily swings in spring and fall. We see this in detached studio builds in the Woodbridge Village corridor. Our fix: we calculate revised gap spacing based on local solar exposure and specify it in the finish detail sheet, using James Hardie trim where the original Dvele trim profile won’t accommodate the wider gap.
Our Dvele Junior ADU & Interior Conversion Process

- 1
Site measure and Dvele serial verification. We record the unit’s serial number, manufacture date, and original spec sheet. This tells us which V-series we’re working with and what factory options were installed.
- 2
Structural and utility assessment. We check the existing slab, framing, and utility capacity against the Dvele’s connection points. In Irvine, we pay particular attention to sewer lateral depth, which runs shallow in some Turtle Rock and Northwood tracts.
- 3
Permit set preparation with Dvele coordination. Nadia Ellery’s team produces the full drawing package, including any deviations from Dvele’s standard install manual. The drawing either passes plan check or it doesn’t. Let’s talk about which one yours will be.
- 4
Pre-construction pricing lock. Under Haven Standard Clause 1, you receive a written price before any work begins. The scope is locked at signing; no door-side upsells, no scope creep.
- 5
Construction with documented photo record. Every visit produces dated photos of existing conditions, work in progress, and final state. You receive these, not a summary of how it felt.
- 6
Final inspection and 365-Day Done Right Promise activation. If the finished ADU is not built to the permitted drawings, we make it right, in writing.
What Dvele Junior ADU & Interior Conversion Costs in Irvine
| Project Type | Typical Range (Design Through Final Inspection) | What Moves the Price |
|---|---|---|
| Room-to-ADU conversion with Dvele V1 or V2 module | $145,000-$210,000 | Existing electrical panel capacity; need for dedicated HVAC |
| Above-garage ADU with Dvele V2 | $175,000-$265,000 | Structural reinforcement of garage; fire separation requirements |
| Basement ADU with Dvele V3 | $165,000-$240,000 | Moisture remediation; egress window installation |
| Attached addition ADU with Dvele V3 | $155,000-$225,000 | Foundation tie-in; utility lateral extension distance |
These ranges include our design and permit set, all construction, and final inspection. They do not include the Dvele module itself, which you purchased separately. Every project is quoted with a written price before any work begins. Call (657) 233-9738 for an exact quote on your specific Dvele configuration and existing structure.
Why Irvine Homeowners Call Ellery ADU Studio Irvine for Dvele Work

We’ve logged years of projects across Irvine, including detached studio builds in the Woodbridge Village corridor, and we’ve learned which Dvele factory details translate cleanly to California’s Title 24 energy code and which need redrawn. Our 365-Day Done Right Promise means if the finished ADU doesn’t match the permitted drawings, we fix it. Our background-checked, uniformed crews know Dvele’s connection sequences, and when a part is backordered from the factory, we maintain relationships with quality aftermarket suppliers and with Abodu and Cover for cross-brand solutions. A live person answers calls 24/7. Our license number appears on every page, verified, not just claimed.
FAQs
Any structural or utility modification beyond Dvele’s original installation manual can affect warranty coverage on affected components. We document every deviation on the permit set and provide you with a written record of what was changed and why, so you have full transparency. Call (657) 233-9738 to review your specific Dvele warranty terms before work starts.
Dvele factory parts typically ship in 2-4 weeks for standard items, 6-10 weeks for custom panels or electrical components. We stock common V-series connection hardware and maintain relationships with aftermarket suppliers for faster turnaround on critical-path items. Call (657) 233-9738 and we’ll check availability against your specific module serial number.
Replacement makes sense when the module’s structural envelope is compromised, the insulation is water-damaged, or the electrical panel is an obsolete configuration that can’t meet current Irvine code. Repair is typically viable for cosmetic damage, isolated moisture intrusion, or outdated smart-home hardware. We assess this on every site visit and tell you which path costs less over the 30-year life of the ADU. Call (657) 233-9738 to schedule that assessment.
Dvele’s factory color palette is proprietary, but we’ve developed close matches using James Hardie ColorPlus finishes that satisfy Irvine’s design review requirements in planned communities like Orchard Hills and Portola Springs. We specify the match on the finish schedule and photograph the result for your approval before full application. Call (657) 233-9738 to see samples from recent Irvine projects.
Design and permitting typically begin within two weeks of signed contract and deposit. Construction start depends on permit issuance, which in Irvine currently runs 6-10 weeks for JADUs with no variances. We do not promise same-day starts on planned construction work; the permit set is the core product, and we don’t begin demolition until it’s approved. Call (657) 233-9738 for a realistic timeline based on your specific property and Dvele module.
Written by Nadia Ellery, Owner, Ellery ADU Studio Irvine at Ellery ADU Studio Irvine, serving Irvine and nearby areas.