More room in a fast-growing city
Sherman is growing fast — Texas Instruments' semiconductor mega-site on the north side is bringing thousands of jobs to Grayson County, and new subdivisions keep going up on the south and west sides. That kind of growth changes what families need from a house: more bedrooms, a home office, space for aging parents, or a separate accessory dwelling unit (ADU) for rental income or a returning adult child.
Adding on lets you stay in the neighborhood you already like instead of competing for a new-construction lot.
Additions that fit Sherman homes
Many of the city's older homes near downtown — post-war bungalows, mid-century ranches, and the historic houses around Heritage Row and Austin College — sit on generous in-town lots with room to grow. Common projects:
- Primary-suite additions that give a 1950s ranch a proper owner's bath and closet.
- Second-story or bump-out additions where the lot is tight but the family isn't shrinking.
- Detached ADUs and garage conversions — increasingly popular as TI-driven demand pushes rents up and multigenerational living becomes common.
On a historic-district property, we match rooflines, siding, and proportions so the addition reads as original, not bolted-on.
The Sherman permit reality
An addition or ADU adds square footage, which means structural, electrical, and plumbing review — the full plan-review process at Sherman's Development Services / Building Division (317 S. Travis St). Here's the part that catches people: review doesn't start until all fees are paid, then takes about 15 working days depending on workload, and if the city requests changes, the resubmittal restarts that 15-business-day clock. We prepare complete construction documents up front precisely to avoid that restart.
Everything is filed through the city's Self Service Portal (Tyler EnerGov, live since March 2025), and the permit must be pulled by the owner or a contractor registered with the City of Sherman. We're Allen-based — Sherman is near the top of the footprint we cover up US-75, not a local branch — but we're registered to pull and manage the permit for you.
Built right, built to code
New square footage has to tie into your existing structure, electrical panel, and plumbing correctly, so we bring in state-licensed electricians and plumbers and coordinate every inspection. We're insured and bonded, and we handle the paperwork, the trades, and the schedule end to end. Questions about your specific lot or ADU rules? The city's building office answers at 903-892-7229, and we'll help you read the site before you commit to a plan.
What we handle
- —Build-out (ground level) & build-up (second story)
- —Accessory dwelling units & in-law suites
- —Foundation & drainage tie-ins on expansive clay
- —Structural engineering & stamped plans
- —MEP extension & load checks
- —Permits, setbacks & HOA review
Worth reading first
Home Additions & ADUs in Sherman — FAQ
- Do I need a permit for home additions & ADUs in Sherman, TX?
- Yes — home additions & ADUs in Sherman is permitted work. It's filed through City of Sherman Development Services / Building Division (317 S. Travis St) using Self Service Portal (Tyler EnerGov). Plan review starts only after all fees are paid, then runs about 15 working days — and any resubmittal restarts that clock; the permit must be pulled by the owner or a Sherman-registered contractor. We pull the permit and carry the project through every inspection.
- What does home additions & ADUs in Sherman include?
- A home additions & ADUs project with us covers build-out (ground level) & build-up (second story); accessory dwelling units & in-law suites; foundation & drainage tie-ins on expansive clay; structural engineering & stamped plans; MEP extension & load checks; permits, setbacks & HOA review. Because we're design-build, one team owns design, engineering for North Texas's expansive clay soil, Sherman's permitting, and construction — so nothing falls between a separate designer, builder, and stack of subcontractors.
- How much does home additions & ADUs cost in Sherman?
- It depends on the size of the project, the finishes, and any structural or foundation work, so we scope and price each Sherman project individually rather than quote a flat rate. To plan around typical DFW ranges, use our cost estimator or the free remodel cost & permit guide.
- Is The Remo Guys licensed and insured?
- Texas doesn't issue a statewide license for residential general contractors, so the real assurance is one accountable team that's insured and bonded — which The Remo Guys has been since 2019. The state-licensed electrical, plumbing, and HVAC trades on your project each pull and inspect their own permits under the build.
Planning a budget? See typical DFW ranges in our cost estimator or grab the free remodel cost & permit guide.
Keep exploring
All our remodeling & construction services in Sherman →