A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Highland Park
A home addition in Highland Park typically runs $220 – $480 per square foot for finished space, with a 400 – 600 square foot bedroom-and-bath addition landing between $120,000 and $260,000 when built to the town’s preservation-grade finish standards. Most projects take 5 – 8 months from first drawing to final inspection. We coordinate permits, variances, and inspections so you’re not left chasing paperwork on your own. Call (361) 204-4652 to schedule a free estimate with Lodgewick ADU Dallas.
Highland Park is not a generic suburb. The zoning code, the tree ordinance, the impervious cover rule, and the Board of Adjustment all shape what you can build and what it costs. We know the difference between what works on a lot off Preston Road and what gets flagged on a lot off Armstrong Parkway. That local knowledge is the difference between a smooth build and a variance hearing you didn’t plan for.
Why Lodgewick ADU Dallas Is Highland Park’s Preferred Home Addition Contractor Company
Highland Park homeowners ask for two things before they sign anything: a real number and a written promise that the work will be done right. We deliver both. Every project starts with a written line-item price before any work begins. No change orders at the door. No vague allowances. Then we put the 365-Day Done Right Promise in writing: if the work isn’t right, we come back and make it right, free of charge, within the first year.
Our crews are background-checked and uniformed, so you always know who’s walking your property. And when you call (361) 204-4652, a live person answers. Not a voicemail. Not a chatbot. That matters when a plan check question comes up on a Tuesday afternoon or a supplier changes a delivery date.
Russ Delmar leads our Highland Park work. He’s walked enough of these lots to know what the 50% impervious cover rule means for a concrete pad, and he’ll tell you straight if a prefab unit from Plant Prefab or Mighty Buildings fits your setback better than a stick-built bump-out.
Bathroom Addition Contractor in Highland Park
A Bathroom Addition Contractor in Highland Park handles more than plumbing and tile. The job often starts with a structural question: can the existing foundation carry the added load, and does the roofline clear the 20-foot front-yard easement? On a 1940s cottage near Drexel Drive, that answer sometimes means pier reinforcement before a single wall goes up. A full bathroom addition in Highland Park runs $45,000 – $90,000 when tied into existing plumbing, and $70,000 – $130,000 when it requires a new sewer lateral or foundation work.
Foundation and Drainage Checks
Highland Park’s older homes sit on pier-and-beam foundations, and adding a bathroom means cutting into that structure. We inspect joist spacing, check for previous termite damage, and confirm the drain slope before we quote. A bathroom that leaks into a crawl space later is not a finished job.
Matching Period Finishes
Highland Park homes built in the 1920s and 1930s have specific trim profiles, tile patterns, and fixture styles. We source from local suppliers to match existing details, so a new bathroom reads as original to the house, not bolted on.
Bedroom Addition Contractor in Highland Park
A Bedroom Addition Contractor in Highland Park works within tight setback rules that many other towns don’t have. The zoning code treats the front-yard easement as inviolable, and even a 4-inch roofline encroachment triggers a Board of Adjustment hearing. A first-floor bedroom addition in Highland Park runs $60,000 – $140,000 depending on whether it’s a simple bump-out or a full foundation extension with a new roofline. Second-story bedroom additions run $180,000 – $320,000.
Tree Protection and Permits
Highland Park protects every oak over 8 inches in diameter. If a bedroom addition footprint comes within the root zone, the town requires an arborist report before you get a permit. We’ve seen stop-work orders issued because a homeowner skipped that step. We don’t skip it.
Impervious Cover Compliance
Adding a bedroom often means adding a patio, walkway, or covered porch. That impervious surface counts against Highland Park’s 50% lot coverage cap. We calculate the pre-build coverage and flag whether a planned concrete pad would push you over the line before you pay for drawings.
Trusted Brands We Service in Highland Park
We work hands-on with prefab and panelized systems from Boxabl, Plant Prefab, and Mighty Buildings. For Highland Park lots with tight setbacks or mature tree canopies, a prefab module can sometimes slip into a space where stick-built framing would not. We also stock and install James Hardie plank and lap siding locally, so a bedroom addition on a 1920s Tudor on Byron Avenue matches the original exterior rather than looking like a late add-on. Home Addition Contractor work on period homes demands material literacy, and our crew has it.
Common Home Addition Contractor Problems We See in Highland Park Homes
- Impervious cover surprises. A new concrete pad for a prefab Dvele ADU can push a lot over Highland Park’s 50% cap, forcing costly permeable paving retrofits. We run the coverage math before we quote.
- Tree ordinance stop-orders. Highlands Park protects oaks over 8 inches in diameter. A bedroom addition that disturbs roots without an arborist report can trigger fines and a stalled permit. We schedule the arborist early.
- Undersized electric panels. Many 1940s-era homes on streets like Beverly Drive still run 100-amp service. Adding a bath and bedroom often requires a new 200-amp panel, and a rental ADU needs a separate meter. That cost gets missed in a lot of initial bids.
- Variance triggers nobody mentioned. The town treats the 20-foot front-yard easement as firm. A roofline that extends even a few inches into it means a Board of Adjustment hearing. We prepare the survey, drawings, and neighbor letters so the hearing goes smoothly.
Pricing for Home Addition Contractor in Highland Park, TX
Here are the ranges we quote most often in Highland Park:
- Bathroom addition (tied to existing plumbing): $45,000 – $90,000
- Bathroom addition (new sewer/foundation work): $70,000 – $130,000
- First-floor bedroom addition: $60,000 – $140,000
- Second-story bedroom addition: $180,000 – $320,000
- 400 – 600 sq ft combined bedroom-bath addition: $120,000 – $260,000
- Prefab ADU (Boxabl, Plant Prefab, Mighty Buildings): $110,000 – $280,000 installed
What moves the number? Foundation condition, tree-protection requirements, electric service upgrades, and whether the design triggers a variance hearing. We give you a written line-item price before work starts, so you know exactly where the money goes. Call (361) 204-4652 for a free estimate.
We Also Serve Cities Near Highland Park
Beyond Highland Park, our crews work in Dallas, Plano, Garland, and Richardson. Each town has its own permit office and its own rules, and we handle them without hand-wringing. If you’re just across Lovers Lane or a few blocks past the Dallas North Tollway, give us a call at (361) 204-4652.
Serving Highland Park, TX - Our Local Coverage Area
We’re based in the Highland Park 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 Home Addition Contractor in Highland Park
The sequence is: arborist report if any oak over 8 inches is within the root zone, then survey and drawings submitted for plan check, then a Board of Adjustment hearing if the addition touches the 20-foot front-yard easement or exceeds height limits. After board approval, you pull the building permit, and inspections follow at foundation, framing, MEP rough-in, insulation, and final. We handle all of it. Call (361) 204-4652 and we’ll map your specific sequence.
If the patio or porch pushes your lot over the 50% impervious cover cap, the town requires permeable paving or an engineered drainage solution. That can add $8,000 – $25,000 to the project. We calculate coverage before you commit to a design, so the number you see is the number you pay. Call (361) 204-4652 for a free estimate that includes this check.
Yes. Dallas Central Appraisal District reassesses when a building permit closes and the square footage increases. A bedroom-and-bath addition that adds 400 square feet can raise your annual property tax by $8,000 – $20,000 depending on the finished value. We tell homeowners this before work starts, not after the tax bill arrives.
Demand millwork profiles and trim that match the existing rooms, not builder-grade stock from a big-box aisle. Highland Park cottages on streets like Lakeside Drive have specific baseboard heights, door casings, and window trim. We source from local millwork suppliers to match those details, and we document the match in the written scope of work.
Five to eight months. Plan check alone runs 4 – 8 weeks at Town Hall, a variance hearing adds 3 – 6 weeks, and construction runs 3 – 5 months depending on foundation work and weather. We give you a written timeline with every quote. Call (361) 204-4652 to get one started.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, serving Highland Park under The Kingswell Guarantee.
