Concrete Patios in Plano, TX

What the city checks before a concrete patio in Plano goes in

Collin County holds most of Plano and Denton County a sliver, but neither county permits work here. The city does. Under Ordinance 2025-6-15 it adopted the 2024 International Residential Code with local amendments, effective August 1, 2025. The amendment marks the model code's permit exemption for sidewalks and driveways as deleted and cuts the exemption for detached accessory buildings from 200 to 120 sq ft. Detached decks up to 200 sq ft and no more than 30 inches above grade stay exempt. Nothing on that list names a flat slab, so call Building Inspections with your plan before anyone digs.

The handouts an owner tends to need are grouped on the city's Outdoor Improvements page: patio cover permit requirements and a checklist, residential accessory building rules, outdoor fireplace rules and plot or site plan submittal requirements. They also point owners to their homeowners association for deed restriction and covenant requirements. Our concrete patio service page explains the slab itself; this page covers what changes here.

Covers, pergolas and the engineer-sealed footing rule

Is a roof going over the slab? Start here. Plano amended IRC R401.2 so that every foundation and/or footing regulated by the code, or any size addition to an existing post-tension foundation, shall be designed and sealed by a Texas-registered engineer. A cover or pergola on footings means an engineer's design for those footings; get it to us before we form the slab so the footings and the pour fit together.

Future screen rooms bring a second wrinkle. Floor slabs under the 2024 IRC need a 6-mil vapor retarder, with an exemption in Section R506.3.3 for patios and other flatwork not likely to be enclosed and heated later. Might you close in the space someday? Mention it at the estimate, because the retarder goes down before the pour, not after. A cover-ready slab also gets thickened edges or pads where the posts land, as the plan sets them.

What It Costs

Our typical installed ranges for patio work in Plano.

Ranges, not a bid. A free written estimate follows once we see the site.

Houston Black and Tinn clay under Plano backyards

Of 30 random NRCS sample points inside the city, 20 landed on Houston Black clay. Its main phase has a linear extensibility of 12 percent, which is the very high shrink-swell class, and NRCS rates it very limited for dwellings on concrete slabs. Austin silty clay appeared at 4 points with a lower 5.1 percent, and Tinn clay, occasionally flooded, at 2 points with 11 percent. Across the sample, 73 percent of points were rated very limited for slab dwellings.

A backyard slab isn't a house slab, yet the ground under it moves the same way. Our answer: strip topsoil and roots, compact the subgrade, hold the reinforcing up on chairs instead of letting it rest on dirt, and pitch the surface away from the house so roof water doesn't stand against the foundation. Keeping soil moisture steady along the edge helps too. Our expansive clay guide explains why clay heave cracks slabs. FEMA's map put 90 percent of the same sample points in Zone X minimal hazard, with a single point in an AE floodway. Green corridors still deserve a look, like the trails along Rowlett Creek in Oak Point Park and Nature Preserve, the city's largest park at 800 acres running from Parker Road to Chaparral Road and from Spring Creek Parkway to Los Rios Boulevard. If your yard backs onto a greenbelt like that, check the FEMA map for your lot before you size the slab.

Replacing a concrete patio in Plano homes from the 1980s and 1990s

Census figures put the median home here at 1993, with 28.6 percent of homes from the 1990s, 21.6 percent from the 1980s and 18.4 percent from before 1980. Out behind a house that old, the original slab may be ready for a tear-out and a bigger replacement, or for an extension off the old one. Extensions tie into existing concrete with dowels and a joint so the two pieces can move without breaking each other.

Check your HOA's covenants first, and the city's accessory building rules if a shed or cover is part of the yard plan, before settling on size. Homeowners can pull a permit for work at their own residence without registering; a contractor who pulls one must be registered with the city, $100 a year for a general contractor. The city's own contractor tips warn never to hire a contractor who says no permits or inspections are required. Redoing the front walk or driveway too? See our Plano driveway page for the city's approach rules, or the Plano concrete contractor page for the rest of our work in town.

Pricing a concrete patio in Plano, from 12 by 16 to stamped

Broom-finished slabs cost $7 to $12 per sq ft, and typical projects land at $2,000 to $5,000 for about 200 to 470 sq ft. Here is how a few sizes work out:

• 12 by 16 (192 sq ft): $1,344 to $2,304 at $7 to $12 per sq ft. Small slabs can hit a job minimum.
• 16 by 24 (384 sq ft): $2,688 to $4,608.
• The same 384 sq ft stamped and colored: $4,608 to $7,680 at $12 to $20 per sq ft. See stamped concrete for patterns.

Several things push the number around: tear-out of an old slab, how much clay comes out and how much base goes back, a thickened edge for a future cover, access through a side gate, and the finish. Every concrete patio in Plano gets its firm price from a free written estimate after we see the yard.