Most of the houses on these newer Riverton streets were sold with a small pad off the back door and a lot of open yard behind it. The lots run larger out here, which is why so much of the concrete work happens years after the builder left: a patio worth sitting on, a walkway around the side, a pad for the trailer that has sat on gravel since you bought the place. If that is on your list, call 801-644-9000 and we will match you with contractors doing add-on flatwork across the south end of Salt Lake County.
Builder pads are sized to satisfy a plan, not to hold a table, a grill, chairs and the space to walk behind them. Start with what you actually intend to put out there and how people move through it, because a patio that is a few feet short in one direction gets used badly for its whole life. Then look at the door. Where the slab meets the house it has to sit below the siding line and pitch away, and how that gets handled is one of the first things a contractor should walk through with you on site rather than over the phone.
The rest is orientation and connection. Afternoon sun on the west side of a house out here is real, and so is wind coming down the valley, so where you place the slab matters as much as how big it is. Think about how it ties to the existing walk, the gate and the lawn, so you are not stepping down onto grass that turns to mud. If a cover, a pergola or an outdoor kitchen is anywhere in your future, say so before the pour. Planning for it while the ground is open is far easier than cutting into finished concrete later.
Measure the vehicle, then keep going. You need room to open doors and bays, to extend an awning or slide-out, and to walk the full length of it without stepping into planting beds. Length matters more than people expect, because a trailer parked to the property line still needs the tongue and the tow vehicle somewhere. Just as important is the approach: the run from the driveway down the side of the house, the gate width, and whether there is turning room to line up without a dozen corrections. A pad you cannot comfortably get onto does not get used.
Loads are the other half. A pad that carries a loaded RV or a work truck is not built like a garden path, and the contractor specifies the slab and its base for the weight and the ground it sits on. Drainage deserves the same attention, since a large flat surface along a side yard sends a lot of water somewhere, and that somewhere should not be your neighbor's fence line or back against the house. If a homeowners association governs your street, requirements for parking surfaces and screening vary, so check what applies before you settle on a design.
Extending is often smarter than demolishing. If the existing pad is flat, solid and draining the right direction, there is no reason to pay to break it out. The work is in the connection. A contractor decides how the new pour ties to the old, where the joint falls and how the two are kept from fighting each other as they move, and a well-placed joint reads as a design line instead of a repair. Color will differ at first no matter what, so it is usually better to make the transition deliberate than to try to hide it.
Base preparation is the part that decides whether the extension is still flat in ten years. Ground beside a newer house has often been backfilled, trenched for irrigation, regraded for landscaping, or built up with imported soil, and none of that is ready to carry a slab as it sits. The same applies to widening a driveway or running a walk down a side yard that was landscaped after the house was finished. Ask what is going under the concrete and how the ground gets prepared, because that is the work you will never see and will feel the most.
Often, yes. If it sits flat, is solid through and drains away from the house, it can usually be built onto. The contractor plans where the new work ties in and how the joint is handled so the two sections can move without cracking each other. Expect a visible color difference between old and new concrete that softens over time but does not fully disappear.
Enough to live with it. Add space to open doors and storage bays, to run out an awning or slide-out, and to walk the full length without crossing landscaping. Then look at the approach from the driveway, gate width and turning room, since that is what makes a pad usable day to day. Your contractor sizes the slab and its base for the weight it will carry.
It does. Imported soil, irrigation trenches and backfill that was placed for planting rather than for a slab all behave differently under concrete than undisturbed ground. A contractor should be checking what is actually down there and preparing or replacing it as needed before forming. That work is invisible when it is done right and very visible a few years later when it is skipped.
Send it over and we will match you with a Wasatch Front concrete contractor who covers your area.