A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Addison
If you’re searching for ADU builders in Addison, you’re likely wondering what’s actually allowed on your lot, what it’ll cost, and whether the project will stay on budget. The short answer: most Addison homeowners hire a Garage Conversion Contractor - Addison for attached garage conversions or interior junior ADUs (JADUs), not detached backyard units, and a realistic budget starts around $85,000 – $145,000 for a garage conversion and $55,000 – $95,000 for an interior JADU. We’re Lodgewick ADU Dallas, and we’ve built these projects across Addison’s single-family pockets long enough to know the zoning quirks, the noise-overlay requirements near Addison Airport, and the permit path before you spend a dime on drawings. Call (361) 204-4652 and we’ll walk you through what your specific lot allows.
Why Lodgewick ADU Dallas Is Addison’s Preferred ADU Builders Company
Addison is a tight 4.4-square-mile city where a wrong zoning assumption can kill a project before it starts. Our ADU Builders team has worked on garage conversions and JADUs throughout Addison‘s single-family pockets, from the streets off Belt Line Road to the neighborhoods near Addison Circle Park and the older homes around Les Lacs and the Vitruvian Park area. Homeowners here tell us the same thing: they called two or three contractors who quoted a project, then changed the number when they showed up. That doesn’t happen with us. Our written price comes before any work starts, every time, and the 365-Day Done Right Promise is in writing on every project. If it’s not right, we come back and make it right. Russ Delmar, who leads our team, personally reviews every Addison project scope before the first nail is driven.
We also answer the phone. A live person picks up 24 hours a day, 7 days a week. Not a voicemail loop, not a chatbot. When you’re trying to figure out whether your garage slab can support a conditioned dwelling, you want to talk to someone who knows Addison’s specific building department, not an answering service.
JADU in Addison
A JADU in Addison – a junior accessory dwelling unit – is the most common ADU path in this city because it works within the existing walls of your single-family home. In Addison, where most residential lots are zoned for attached conversions only, a JADU is typically a converted bedroom, bonus room, or portion of an attached garage that gets its own kitchenette, separate entrance, and separate address. It’s the fastest and least expensive way to add a rentable or family unit on an Addison lot, usually running $55,000 – $95,000 depending on size, plumbing rough-in work, and whether you need a new exterior door cut into the wall.
The JADU Build Process in Addison
Most Addison JADUs take 8 – 14 weeks from permit approval to final inspection. The timeline stretches if the existing room sits close to the Addison Airport noise contour and needs upgraded windows with higher STC ratings. We scope that on day one, so the written price reflects the actual conditions on your lot, not a generic estimate.
When an Addison Homeowner Needs a JADU Instead of a Conversion
If your lot is zero-lot-line, your garage slab has structural questions, or you simply want to keep the garage for cars and storage, a JADU inside the existing home footprint is often the smartest route. No new foundation, no setback review, and a shorter planning path through Addison’s building department.
ADU Plans in Addison
ADU plans in Addison are not a formality – they’re the difference between a project that gets permitted and one that stalls for six months. Addison’s zoning map is dominated by commercial, office, and multifamily districts, which means the single-family pockets that do exist carry unusual constraints: zero-lot-line setbacks, airport noise overlays, and garage-slab structural reviews. Good ADU plans account for all of that before you pay for construction. Plan sets for an Addison ADU typically run $4,000 – $9,000 depending on whether you’re doing an attached garage conversion, a JADU within the home, or a rare detached unit where the lot actually allows it.
What a Complete Addison ADU Plan Set Includes
We provide a full plan set: site plan showing setback compliance, floor plan, structural details for the slab and roof, window schedules with STC ratings where the noise overlay applies, and mechanical, electrical, and plumbing sheets. If a garage slab needs inspection or reinforcing, that shows up in the structural sheets and in your written price. No surprises at the permit counter.
Zoning Verification Before You Spend on Drawings
Before we draft anything, we verify what your specific Addison lot allows. Most of the city’s single-family parcels are zoned for attached conversions only. That’s why we confirm zoning, noise-overlay status, and slab condition before we start drawing. You shouldn’t pay for plans for a detached backyard unit that Addison won’t permit – and we won’t let you.
Trusted Brands We Service in Addison
We work directly with established ADU brands and materials so Addison homeowners get real options, not a one-size-fits-all bid. For attached garage conversions and JADUs in Addison, we regularly specify Abodu’s prefabricated framing system for its speed and structural predictability, Tuff Shed for storage and workshop integration where a garage conversion leaves you without storage space, and James Hardie siding for the exterior finish that holds up to North Texas heat and hail. Our team knows how these products perform on Addison’s specific lots, and we keep local parts access and vendor relationships tight so a material question doesn’t stall your project for a week.
Common ADU Builders Problems We See in Addison Homes
- Assuming a detached backyard ADU is allowed by-right. Across most of Addison, it isn’t. Nearly every residential lot is zoned for attached conversions only, and we’ve had homeowners come to us after an architect drew plans for a detached unit that the city wouldn’t touch. We flag this on the first call.
- Skipping the garage slab structural review. A 1970s-era garage slab off Belt Line Road may not meet current requirements for a conditioned dwelling. Frost-depth and structural checks are mandatory, and reinforcing a slab adds real cost – better to know before you start.
- Underestimating the Addison Airport noise overlay. Homes near Addison Airport sit in a noise contour that requires upgraded windows and insulation with specific STC ratings. Skipping that means a failed inspection and a change order. We build it into the written price from the start.
- Opening walls without a permit. Addison inspections are thorough, and unpermitted ADU work creates a legal and financial mess when you try to sell. We pull all permits, schedule every inspection, and don’t start work until the permit is issued.
Pricing for ADU Builders in Addison, TX
Here are real numbers for the Addison market. An attached garage conversion to an ADU typically runs $85,000 – $145,000 depending on square footage, slab work, kitchenette build-out, and window upgrades required by the airport noise overlay. An interior JADU in Addison runs $55,000 – $95,000. ADU plans run $4,000 – $9,000. If your lot is one of the rare parcels that allows a detached unit, budget $180,000 – $320,000 for a small backyard ADU. The biggest cost drivers in Addison are slab condition, noise-overlay window and insulation upgrades, and whether your existing electrical panel has capacity for a second dwelling. Call (361) 204-4652 for a free estimate, and we’ll give you a written price before any work starts.
We Also Serve Cities Near Addison
Our crews serve Addison locally, with dispatch and scheduling coordinated from our Dallas-Fort Worth office. If you’re shopping ADU builders in a neighboring city, we also work across ADU Builders territory in Richardson, Plano, Dallas, and Garland. Same written-price guarantee, same 365-Day Done Right Promise, same live person answering the phone.
Serving Addison, TX - Our Local Coverage Area
We’re based in the Addison 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 Builders in Addison
Most Addison single-family lots are zoned for attached conversions only – garage conversions and interior JADUs – not detached backyard units. A small number of parcels may allow a detached ADU, but you need zoning verification before paying for any drawings. Call (361) 204-4652 and we’ll check your specific address. It costs nothing to find out what your lot actually allows.
Yes, if your home sits within the Addison Airport noise overlay, your ADU will need windows and insulation with specific STC ratings, and that typically adds $3,000 – $8,000 depending on the number of windows and wall area. We check the noise contour on every Addison project before we write the estimate, so that cost shows up in writing from day one. Call (361) 204-4652 and we can confirm whether your address falls inside the overlay.
An attached garage conversion or JADU in Addison triggers a building permit, structural review of the existing slab and roof, electrical and plumbing permits, and final inspections from the City of Addison. If your lot is zero-lot-line, the setback review is part of the plan approval. We pull all permits and schedule every inspection, and the permit path is spelled out in your written scope before work begins. Call (361) 204-4652 to get your project scoped correctly.
A garage-to-ADU conversion in Addison typically takes 10 – 16 weeks from permit approval to final inspection, depending on slab work, kitchenette complexity, and noise-overlay window upgrades. JADUs are faster, usually 8 – 14 weeks. The permit review itself can add 3 – 6 weeks depending on the city’s current queue. We give you a written schedule with your written price. Call (361) 204-4652 for a free estimate and a realistic calendar for your specific project.
The three biggest cost drivers in Addison are garage slab condition (reinforcing a 1970s slab can add $8,000 – $20,000), airport noise-overlay window and insulation upgrades ($3,000 – $8,000), and whether your electrical panel has capacity for a second dwelling ($2,500 – $6,000 for a panel upgrade). Small lots also mean tighter access for crews and materials, which affects labor hours. We write the price with all of that included, so there are no change orders at the door. Call (361) 204-4652 to get your free estimate.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, serving Addison since 2010.
