Concrete Patios in Lewisville, TX

A concrete patio in Lewisville needs a $50 flatwork permit

Lewisville's Driveway and Flatwork handout (updated 1/15/2025) doesn't hedge: "A permit is required for the repair, replacement, or extension of a driveway or any work." A new backyard slab and a patio extension both fall under that. Residential flatwork is $50.00 on the Building Permit and Fee Schedule effective January 1, 2024. MGO Connect handles permits, inspection requests and contractor registration, and Building Services runs plan review and inspection of private construction.

You submit a site plan or survey along with "construction specifications indicating the depth of concrete and size and spacing of reinforcement materials." We draw those specs up from the pour plan we priced for your concrete patio in Lewisville. A general contractor registers every year for $80 and files a certificate of liability insurance with a minimum of $100,000 coverage. The details are on the city's building permits page.

To see how the city stacks up against Frisco and Allen, read the north Dallas permit guide.

The steel inspection, the 3 p.m. cutoff and rain days

Flatwork gets two inspections under the handout: Flat Work and Final. The first comes "upon completion of reinforcement and prior to pouring of concrete," and it sets your schedule. Requests for next-day inspections are due by 3 p.m., and a Monday inspection has to be requested before 10 a.m. the Friday before. The city skips concrete inspections when conditions are "too wet." Some projects may also need an engineering miscellaneous inspection.

On a concrete patio in Lewisville, the truck isn't ordered until the steel is in, chaired and ready for the inspector. Re-inspection fees are $50 for the first, $75 for the second and $100 for the third, so we walk the forms and bars ourselves beforehand. May (4.78 inches) and October (4.37 inches) are the wettest months in DFW, which means spring and fall pours need slack in the schedule.

Under Code Sec. 4-31, the city enforces the 2021 International Residential Code, and its handouts note that they are being revised for updated codes. Ask us at the estimate what is current for your pour date.

What It Costs

Our DFW ranges, applied to Lewisville backyards.

These are ranges, not a bid. The $50 flatwork permit and re-inspection fees come on top. A free written estimate follows once we have seen the yard.

Covers, decks and sheds beside a Lewisville patio

A concrete patio in Lewisville may not stand alone for long. The city has separate handouts for Decks, Patio Cover (Arbor), Accessory Buildings and Retaining Walls. A deck needs a permit when it is over 200 sq ft or over 30 inches high, and the contractor on that job must be registered in the city. An accessory building needs a permit over 120 sq ft. It has to sit at least 5 ft from the side and rear lines and from the house, outside any easement, and behind the front of the house.

Size caps are spelled out. On a lot of 7,500 sq ft or smaller, you get one building up to 250 sq ft. A lot from 7,501 to under 18,000 sq ft gets two buildings totaling 500 sq ft. At 18,000 sq ft or larger, it is two buildings totaling 800 sq ft. A shed pad beside the patio falls under those rules, and the standard inspections for a building include the Foundation inspection.

When a cover or a shed is part of your plan, we pour the patio around its footprint and setbacks. Our Lewisville foundations page handles the pad side of that.

Open water, gravel pits and Ferris-Heiden slopes under Lewisville yards

Inside Lewisville's 2020 Census boundary, NRCS sampled 30 points. Open water covered 20% of them and gravel pits another 7%. Ferris-Heiden clay on 5 to 15% slopes took 13%, with a shrink-swell value of 17% (very high on NRCS's scale) and a "Very limited" rating for dwellings on a slab. Justin-Urban land, Wilson-Urban land and Wilson clay loam took 7% each. Gasil and Bastsil sandy loams have shrink-swell values under 3.5%. The ground changes across the city more than any single soil label suggests.

So a quote for a concrete patio in Lewisville starts with a shovel. On the clay slopes we compact the base and run steel on chairs, and on sandy loam the base work is different. The IRC lets flatwork like a patio skip the vapor retarder unless it could be enclosed and heated later. Where one is called for, the 2021 edition specifies a 10-mil, ASTM E1745 Class A sheet with joints lapped 6 inches.

On FEMA's layer, 70% of the sample points fell in minimal-hazard Zone X, 13% in Zone AE, 3% in an AE floodway and 3% in Zone A, and 10% returned no answer. Denton Creek, Timber Creek, Prairie Creek and Stewart Creek run through the city, along with the Elm Fork of the Trinity River. Look up your own address before you draw a slab near any of them.

Lake Park edges, Old Town and what a Lewisville patio costs

Some lots feel the pull of Lewisville Lake. Around the lake, the Corps of Engineers holds a flowage easement at and below the 537.0-foot contour, and any work inside it needs written Corps permission. Lake Park sits on the shoreline just east of Mill Street, on property the city leases from the Corps. In the Old Town Design District, bounded roughly by College Street, Purnell Street, South Edna Avenue, West Main Street and Degan Avenue, structures that need a building permit also need a design approval letter. Whether a flatwork-only patio triggers that is a question for the city, and we ask before we pour. Castle Hills has its own notice of private development.

Our reinforced, broom-finished patios cost $7 to $12 per sq ft, which puts a 200 to 470 sq ft project in the $2,000 to $5,000 range. A 14 by 18 patio is 252 sq ft, which is $1,764 to $3,024. A 12 by 16 is 192 sq ft, which is $1,344 to $2,304. Stamped and colored work costs $12 to $20 per sq ft. Tearing out an old slab pushes the number up.

Planning a concrete patio in Lewisville, TX? Reach us through the contact page or call 469-972-8639. Browse the concrete patios service page and the Lewisville concrete contractor page, or look at Lewisville driveways if the driveway needs work too.