Frequently Asked Questions - ADU in San Diego, CA
Straight answers about building an ADU in San Diego, from cost to timeline to what our written guarantee covers. If your question isn't here, call (619) 376-2760 and we'll talk it through.
Pricing & Cost FAQs
A detached ADU in San Diego typically runs $180,000 to $320,000, while garage conversions land between $90,000 and $160,000 depending on foundation work and utility runs. Our team gives you a written price before any work starts, so the number you approve is the number you pay. San Diego's coastal soil conditions and hillside lots can shift foundation costs, which is why we walk the property and pull utility records before quoting. Call (619) 376-2760 for a free written estimate on your specific lot.
Our written estimate covers plans and engineering, permits, site prep, foundation, framing, roofing, electrical, plumbing, HVAC, drywall, flooring, fixtures, paint, and final inspection. Every price we write is line-itemed so you can see exactly where each dollar goes. The Kingswell Way says leave nothing vague. If San Diego adding a utility trench across a long lot or upgrading a panel, that shows up as its own line item, not a surprise later. Call (619) 376-2760 for a detailed quote on your project.
No. Estimates for ADU projects in San Diego are free. Russ Delmar or a member of his local team will walk your property, measure, check access, and review utility hookups before we put anything in writing. There's no charge and no obligation. When you get our estimate, it's a fixed written price with a scope of work attached, not a rough ballpark. Call (619) 376-2760 and we'll schedule your free estimate at a time that fits your week.
Not unless the scope changes. Our written price covers the work we agreed to do. If San Diego lot conditions reveal something once we dig - old buried concrete, unexpected ledge rock, a sewer line where we didn't expect it - we document it, explain it, and get your sign-off before any extra work happens. Change orders only happen when you approve them. That's the Kingswell Guarantee in practice: no surprise invoice at the end. Call (619) 376-2760 to talk through your project.
San Diego permit fees for ADUs generally run $3,000 to $8,000 depending on square footage, and city impact fees often get waived for ADUs under 750 square feet under state law. We include permit costs in our written estimate so there's no separate surprise line later. Russ Delmar's team pulls permits through the City of San Diego's Development Services Department regularly, and we know which fees apply to your zone. Call (619) 376-2760 and we'll break down exactly what your permit package will cost.
Service & Process FAQs
We start with a free site visit and a written fixed-price estimate. Once you approve, we handle plans, engineering, and permits, then move through site prep, foundation, framing, and all mechanicals before finishes and final inspection. San Diego's coastal climate means we schedule exterior work around rain windows and use moisture-resistant materials where needed. You get a clear timeline in writing at the start. Call (619) 376-2760 and Russ Delmar's team will walk you through the whole process on your lot.
A detached ADU in San Diego typically takes 7 to 12 months from first meeting to final inspection. Garage conversions usually run 3 to 6 months because the shell already exists. Permit review time at the City of San Diego varies by season, and we factor that into the schedule we write for you. Our Kingswell team shows up in the window we give, and the schedule you approve at contract is the schedule we hold. Call (619) 376-2760 for a realistic timeline on your specific project.
Yes. We pull all building permits through the City of San Diego and any applicable county or coastal commission requirements. Our team prepares the drawings, submits the plans, responds to plan-check comments, and schedules inspections. The Kingswell Way says put it in writing, and that includes the permit package. If your ADU is in a coastal overlay or historic district, we handle those extra layers too. Call (619) 376-2760 to ask about your specific zone.
We keep a portfolio of completed ADU projects from neighborhoods across San Diego, from North Park to Point Loma to Clairemont. Every project we finish has before-and-after photos and a summary of what the job involved. If you want to see quality of finish, materials used, and how we handle tight lots, we're happy to walk you through real examples. Call (619) 376-2760 and we'll set up a time to review recent work.
Yes. Our team helps you work through layout, window placement, entry flow, and finish selections. We have standard plans that speed up permitting, and we modify them to fit your lot and how you plan to use the space - rental, family, home office, or aging parents. San Diego lots vary widely, from canyon-rim parcels to flat coastal grids, so every design starts with the actual site. Call (619) 376-2760 to talk through what's possible on your property.
Brands & Parts FAQs
We work with a few proven building approaches including conventional stick framing and prefabricated panel systems. For some San Diego projects, a factory-built unit like Boxabl or a panelized system from Plant Prefab makes sense for speed and quality control. We also use James Hardie siding on many detached units because it stands up to coastal moisture and fire-zone requirements. The right system depends on your lot, setbacks, and budget. Call (619) 376-2760 and we'll explain which approach fits your property.
A Tuff Shed alone won't pass as an ADU in San Diego because an ADU requires a permitted foundation, insulation, plumbing, electrical, and a certificate of occupancy. That said, some homeowners use a Tuff Shed as a finished storage or studio space while a permitted ADU handles the living function. We'll tell you plainly what qualifies as livable square footage and what doesn't, because getting that wrong costs real money at resale. Call (619) 376-2760 if you're weighing a prefab shell against a permitted ADU.
Prefab works well in San Diego when access is clear and the lot is reasonably level. Boxabl and Plant Prefab both produce units that can be set on a prepared foundation with utility stubs already in place. Prefab shortens on-site framing time but doesn't remove the need for permits, trenching, connections, and final inspections. We handle the whole prefab process from foundation to sign-off. Call (619) 376-2760 and we'll price a prefab option for your lot.
James Hardie fiber cement siding is our standard for coastal San Diego ADUs because it doesn't swell, rot, or attract termites the way wood does in salt air. It also carries the fire ratings some canyon-adjacent neighborhoods require. We've used it on units in Ocean Beach, Pacific Beach, and Point Loma where marine layer moisture is constant. For inland neighborhoods, it's still a smart choice for longevity. Call (619) 376-2760 to see finished examples in your area.
Licensing & Insurance FAQs
Every pro working under our name is required to hold the license and insurance their state requires. Lodgewick ADU San Diego operates under the standards of the Kingswell family of brands, and every location is independently owned and operated. When you work with us, your project is covered by a written guarantee. We're happy to walk through the details before you sign anything. Call (619) 376-2760 and we'll answer every credential question directly.
Russ Delmar leads the local San Diego team. He's the person accountable for the estimate you approve, the schedule we write, and the finish we leave behind. When you call (619) 376-2760, a live coordinator answers, listens to your project, and connects you with Russ and the local team. You're getting the brand standards of Lodgewick ADU Builders applied by people who live and work in San Diego.
Every contractor working under the Lodgewick ADU San Diego name is required to carry the insurance coverage their state requires, including liability and workers' compensation where applicable. That requirement is part of the Kingswell standard applied at every location. Before any work starts, we're glad to provide whatever documentation your lender or HOA needs. Call (619) 376-2760 and we'll get it to you.
Yes. Many San Diego neighborhoods have HOA design review processes for ADUs, and we prepare the documentation review committees typically want: site plans, elevation drawings, material samples, and finish schedules. California law limits how much an HOA can restrict ADUs, but we work cooperatively rather than combatively. Russ Delmar's team has navigated HOA submittals in communities across the city. Call (619) 376-2760 and we'll help you put a clean package together.
Emergency & Response FAQs
If your existing ADU has a water leak, electrical fault, or structural issue, call (619) 376-2760 during business hours: Monday through Friday 7:00 AM to 7:00 PM, and Sunday 7:00 AM to 7:00 PM. We'll assess the situation, advise on immediate safety steps, and schedule the repair work. For true emergencies like a gas smell or arcing electrical, shut off the relevant utility and contact the appropriate emergency service first. Electrical panels and gas lines are dangerous, so leave hands-on repairs to a trained professional.
Stop the water source if you can do so safely, move belongings out of the wet area, and call (619) 376-2760 during our business hours. Water damage in San Diego ADUs often shows up in flat roof assemblies and around sliding doors after heavy rain events, and it needs drying and repair fast to prevent mold in our mild coastal climate. We'll assess the extent, write a fixed price for the repair, and schedule it. Don't open up walls yourself; trapped moisture needs proper drying equipment and a trained eye.
We schedule repair work based on urgency, our current project load, and the customer's availability. When you call (619) 376-2760, our coordinator takes your details and connects you with the local team to set a clear start window. You'll never get a vague promise from us. For projects where safety is a factor, we prioritize accordingly. Our hours are Monday through Friday 7:00 AM to 7:00 PM and Sunday 7:00 AM to 7:00 PM, closed Saturday.
Warranty & Guarantees FAQs
Every project done under the Lodgewick ADU San Diego name is covered by The Kingswell Guarantee, which means four written promises: a price in writing before any work starts, a real arrival window, a clean job site, and a written guarantee on the work. If a repair fails inside the guarantee period, we come back and fix it at no charge. That's the standard across every Kingswell company, applied here in San Diego by Russ Delmar's team. Call (619) 376-2760 to get the terms in writing for your project.
The written warranty details come with your contract and are specific to the scope of work. At a minimum, we stand behind our work for the guarantee period written into every Kingswell contract. If something we built or installed doesn't hold up inside that period, we come back and make it right at no charge. That's the Kingswell Way: put the guarantee in writing, then honor it. Call (619) 376-2760 and we'll review exactly what your project's warranty covers.
Call (619) 376-2760 and tell us what's happening. If the issue falls inside your written guarantee period, we schedule a return visit and fix it at no charge. Russ Delmar's team keeps records on every San Diego project, so we know your scope, your materials, and your dates without you digging for paperwork. Come back if it fails is one of the five Kingswell Way values, and it's the one we take most personally. Your call gets answered, and your fix gets scheduled.
Yes. We repair and upgrade ADUs across San Diego regardless of who built them originally. If you bought a home with an existing ADU and it has issues, we'll assess it, write a fixed price for the repair, and stand behind the work with the same Kingswell Guarantee we give on new builds. Common callouts include roof leaks, inadequate insulation, outdated electrical, and ADUs that were built without permits and need retroactive sign-off. Call (619) 376-2760 and tell us what yours needs.
Written by Russ Delmar, Owner at Lodgewick ADU San Diego, serving San Diego County since 2010.
Still Have Questions?
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(619) 376-2760