







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Richmond
A garage conversion in Richmond typically costs between $38,000 and $95,000 for a full ADU with kitchen and bath, while a simpler garage-to-bedroom remodel runs $22,000 to $45,000. The work takes 10 to 16 weeks from first permit application to final inspection, depending on scope. At Lodgewick ADU Houston, we give you a written price before any work starts, and we never change it at the door. Call (361) 326-2313 if you’re thinking through the numbers and want straight answers.

Russ Delmar and our crews work Richmond neighborhoods regularly, from Pecan Grove to Aliana to Harvest Green. We know which inspectors cover which quadrants of the city, what the Building Department looks for at pre-construction site review, and how the Brazos River flood-plain rules affect slab elevations. That local knowledge saves you weeks and real money.
Why Lodgewick ADU Houston Is Richmond’s Preferred Garage Conversion Contractor Company

Richmond homeowners hire us because we put the whole deal in writing before the first nail. The Kingswell Guarantee means a written price, a defined arrival window, a clean job site, and a written guarantee on every project. If the work isn’t done right, the 365-Day Done Right Promise kicks in. We come back and make it right, free of charge.
Our crews are background-checked and uniformed. You’ll know exactly who is pulling up to your property, and you’ll have a live person on the phone whenever you call, 24 hours a day. No voicemail loops. No “your call is important to us” recordings. Russ Delmar runs the scheduling and dispatch from our Richmond service area with a tight local rotation, so the same crew that starts your conversion is often the one that finishes it.
What separates us most is how we scope a job. Before you commit to anything, we walk the garage with you, test the slab, identify the flood-zone elevation requirements, and map out which walls come down and which stay. Then we hand you a written line-item quote. That’s it. No allowance games, no change-order surprises.
Garage to Bedroom Conversion in Richmond
Garage to Bedroom Conversion in Richmond means turning an existing attached or detached garage into a conditioned, permitted bedroom, typically without adding a kitchen. This is the most common project we do for Richmond families who need an extra bedroom for an aging parent, a teenager, or a home office that doubles as a guest room. Costs in Richmond run $22,000 to $45,000 depending on whether the garage is attached or detached, whether we need to replace the slab, and whether the existing electrical panel has capacity for new circuits.
The process starts with a structural review of the garage and a moisture test on the existing slab. In Richmond’s humid summers, we almost always find elevated moisture vapor transmission in older slabs, which means we install a vapor barrier before flooring goes down. Skipping that test is how you end up with buckled LVP and mold inside a year.
Attached vs. Detached Bedroom Conversions
An attached garage shares a wall and often a roofline with the house, so tying into existing HVAC and electrical is usually simpler and cheaper. A detached garage requires running new ducting or a mini-split, and often a new electrical subpanel. That’s a $4,000 to $9,000 difference in most Richmond projects.
Both require a building permit in Richmond, regardless of scope. We pull the permits ourselves. The inspections are scheduled by us, and we note the permit and inspection status in writing on your contract.
Garage Conversion ADU in Richmond
Garage Conversion ADU in Richmond is the full transformation of a garage into an independent dwelling unit: bedroom, bathroom, full kitchen, separate entrance, and its own address. A permitted garage conversion ADU in Richmond runs $60,000 to $95,000. The city treats this as a change of occupancy, which is a different permit process than a simple bedroom remodel, and it involves more engineering and a longer inspection calendar.
In Richmond specifically, a garage-to-ADU conversion requires both a building permit and a separate accessory dwelling unit registration through the city’s permitting portal. There is a mandatory pre-construction site review by the Building Department that is not required in neighboring Sugar Land or Rosenberg. We schedule that review as step one, walk the site with the inspector, and only then begin demolition.

Permits and the Inspection Sequence
Once the site review is complete, we file the full plan set: architectural, structural, electrical, plumbing, and mechanical. The city reviews in a single intake. Common re-inspection triggers in Richmond are seismic strapping on water heaters and HVAC condensate drainage paths, so we pre-clear those details in the drawings.
After demo and framing, the pre-drywall inspection is the biggest checkpoint. Then insulation, drywall, and rough-end trades. Final occupancy review includes a trip by the fire marshal if the unit has cooking equipment. We have taken Richmond garage ADUs through this sequence without a single failed final.
The Pecan Grove ADU We Built
Our crew converted a two-car attached garage on Plantation Drive in the Richmond neighborhood of Pecan Grove into a 450-square-foot one-bedroom ADU. We started by removing the existing Tuff Shed storage wall and re-framing the garage door opening with a James Hardie panel system, then ran new electrical and mini-split HVAC. We scheduled the required pre-drywall inspection with the city inspector and completed the final occupancy review without a single re-inspection. That’s the pace and precision we bring to every Richmond job.
Trusted Brands We Service in Richmond
Lodgewick works with established ADU brands and materials that perform well in Fort Bend County’s climate. We install and finish prefabricated units from Mighty Buildings and Boxabl, and we regularly pair Tuff Shed structures with our own framing and finishing crews when a homeowner wants a hybrid approach. For Richmond’s humidity problem, we lean on panel systems and weather-rated barriers that hold up through wet summers and the occasional Brazos River flood watch. We stock local parts and material access for Richmond customers, which shortens lead times when something needs to be swapped mid-build.
Common Garage Conversion Contractor Problems We See in Richmond Homes
- Stop-work orders from skipped pre-construction site reviews. Richmond requires this review before any demo. Contractors who don’t know the city’s process lose two to three weeks waiting on a re-scheduled review while their permit sits frozen.
- Slab moisture failures on older garages. Richmond’s clay-heavy soil and humid summers push moisture up through existing slabs. Without a vapor barrier and proper floor prep, your new flooring fails within one season.
- Underestimating flood-plain elevation requirements. Many Richmond lots sit in the Brazos River corridor flood zone. If the garage slab is below the base flood elevation, the foundation plan gets rejected and the engineer has to redesign, adding $3,000 to $7,000.
- Detached garage conversions with no subpanel capacity. Older Richmond homes often have 100-amp panels already at capacity. Running a new subpanel to a detached garage adds cost and time if it isn’t flagged in the quote upfront. We flag it before you sign.
Pricing for Garage Conversion Contractor in Richmond, TX
Here are honest ranges for Richmond work. A garage-to-bedroom conversion runs $22,000 to $45,000. A full garage conversion ADU runs $60,000 to $95,000. The gap between low and high comes down to four things: attached versus detached, whether the existing slab passes moisture testing, how far the electrical panel is from the garage, and whether the lot sits in a FEMA flood zone that triggers elevation work. We give you a written line-item price that covers all of these. If the scope changes because you change it mid-project, we price the change in writing before we touch it. Call (361) 326-2313 to schedule a free estimate in Richmond. Russ will walk your property and hand you a number.
We Also Serve Cities Near Richmond
Our Garage Conversion Contractor team handles projects across Fort Bend County. In addition to Richmond, we serve Sugar Land, Katy, Stafford, and Missouri City. The same written pricing guarantee and 365-Day Done Right Promise apply everywhere we work.
Serving Richmond, TX - Our Local Coverage Area
We’re based in the Richmond 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 Garage Conversion Contractor in Richmond
Richmond requires a building permit for both project types, but a garage conversion to an ADU also requires a separate accessory dwelling unit registration through the city’s permitting portal and a mandatory pre-construction site review by the Building Department. A simple garage-to-bedroom remodel skips the ADU registration and site review, but still needs a building permit and a final inspection. Call (361) 326-2313 and we will explain which path matches your project.
In Richmond, a garage conversion ADU takes 10 to 16 weeks from permit application to final occupancy, assuming plans are clean and the lot has no flood-zone complications. The pre-construction site review adds about one to two weeks at the front end compared to cities without that requirement. We sequence the inspections to avoid calendar gaps and give you a written timeline at contract signing.
If the garage sits in a FEMA-designated flood zone along the Brazos River corridor, the city may require a flood elevation certificate and engineered foundation details before the plan set is approved. Many Richmond lots are not in the flood zone, but enough are that we check this first. Your lender may also require flood insurance on an ADU if the main house already carries it. We flag this in the estimate phase so it does not hit you at permit time.
Yes, a Tuff Shed structure can become a permitted ADU in Richmond if it meets the city’s structural, insulation, and foundation requirements. Most Tuff Shed garages need the slab tested for moisture, additional interior framing, and new electrical and plumbing runs. We have done these conversions, including the one on Plantation Drive in Pecan Grove. Call (361) 326-2313 to find out if your Tuff Shed qualifies.
The three biggest cost shifts in Richmond are flood-zone foundation redesigns, slab moisture failures that need remediation, and electrical panel upgrades that were missed in the initial quote. Each adds $3,000 to $9,000 if not caught early. We test and inspect for all three before you sign, and we put the findings in your written quote. Call (361) 326-2313 for a free estimate and a quote that holds.
Written by Russ Delmar, Owner at Lodgewick ADU Houston, serving Richmond since 2010.



