Commercial Construction in Southwest Amarillo near Soncy and Coulter

Southwest Amarillo sites get drained before they get built, and the owners who do well here are the ones who learn where the water goes before they commit to a floor plan. We build offices, clinics, retail and small industrial buildings in the Soncy and Coulter area, on land that is growing quickly and that sits in the path of both playa lake runoff and a major highway project.

The drainage issue is real. On June 5, 2023, KFDA reported that Amarillo's Public Works Director said all playa lakes except Martin Road Lake were at or above capacity, attributing part of that to heavier rainfall in southwest Amarillo, and that the City reported over $1 million in damages across Randall and Potter counties. A lot that looks high and dry in August may be the downstream end of a basin in June, so we look at the surrounding grades and at the city's drainage records before we price.

Roads are the second variable. KFDA reported in November 2021 that TxDOT was building State Loop 335 overpasses at Coulter Street and West Hollywood Road with turnarounds and temporary frontage roads, noting the main lanes were not yet funded, and that Soncy is no longer officially the Loop and Helium Road is. Owners who want a corner on the loop need to confirm which road is the road before they sign a contract.

Playa floors in this region are clay, and the USDA describes Randall series soils as poorly drained with very slow permeability, frequently ponded for long periods in most years. We do not claim that every lot in southwest Amarillo sits on playa clay, but we always ask for a geotechnical report, because clay swells, shrinks and cracks, and a footing that is shallow on one lot may need drilled piers on the next. Our deep drilled pier foundations page describes when that choice makes sense.

The drainage design follows from the soil. Detention ponds must have a place to discharge, and lots near full playa basins may have a hard time finding one. We bring a civil engineer in early, and the stormwater drainage trade partners build the pond, inlet and outfall before the building so the lot is dry through construction.

Most lots on the Randall County side of the city are inside the Amarillo limits, but the edge of the city is an extraterritorial ring where the city approves plats and the county holds other powers. Randall County's floodplain office states that no construction can begin without a Floodplain Development Permit, with a Class A permit for development outside and a Class B permit for development partly or fully within the mapped 100-year floodplain.

We read the flood map for every parcel and we confirm which permit applies. If a lot is in the floodplain, we may raise the finished floor, add compensating storage or redesign the layout. If it is outside but next to a playa, we plan the same way, because a map is a legal boundary, not a guarantee. Our permitting and entitlements page lists the approvals we usually track.

The medical presence nearby shapes demand. The Texas Tech Board of Regents approved, as reported in May 2026, two 10-year leases totaling 34,000 square feet in the former Amarillo Medical Specialist building across Coulter Street from the School of Medicine, for pediatric subspecialties and the Department of Psychiatry. Physician groups, therapy practices and labs often follow such institutions with their own buildings, and we build them on the same side of Coulter. See our medical office page for the program.

Offices and neighborhood retail serve the new housing. We also build small service buildings: veterinary clinics, daycare centers, fitness studios and professional offices. The Greenways Village development, reported in 2018, combined 15,000 square feet of retail and 33,000 square feet of office around a park, and it is a useful example of how a small mixed center can fit a corner.

On southwest lots we usually schedule and supervise the concrete, framing and site work. The pours include footings, slabs, curbs and sidewalks, and the sitework includes pad grading, underground utilities and the detention pond. Managing those trades together keeps the early weeks under one superintendent, which matters when a rainstorm turns a pad into a pond and the next move is made in an hour, not a week.

For metal buildings, we coordinate the foundation and slab with the manufacturer's anchor bolt plan and coordinate the frame erection. For masonry or stucco, we work with local trades we know. Owners who plan a larger campus can read about design-build delivery and the way it shortens the early phase.

Spring and early summer bring the heaviest storms, and we avoid placing big excavations in those months when a schedule allows. When a lot must be opened in storm season, we keep pumps on site and stage the earthwork so the open area is small. Road projects add another calendar: temporary frontage roads and turnarounds change delivery routes, and we confirm them with TxDOT and the city before each major pour.

Owners who compare this district with the retail corridor to the east should read our Hillside and Bell Street page, and those who want the city's larger permit picture can read about Amarillo as a whole. Developers weighing a multi-parcel plan will find our commercial real estate developers page useful too.

Send the parcel and the building you want. We will review the grades, the flood map and the road plans, then return a first budget with site drainage on its own line.

Is my southwest Amarillo lot likely to flood?

We cannot say from a map alone. The city reported in June 2023 that nearly every playa lake was at or above capacity, partly from heavy rain on the southwest side. We check the flood map, the surrounding grades and the discharge path, then recommend finished floor elevations and detention.

Is Soncy still the Loop?

A 2021 KFDA report said Soncy is no longer officially the Loop and Helium Road is, and that TxDOT was building Loop 335 overpasses at Coulter and West Hollywood. Road designations and funding change, so we confirm current plans with TxDOT before we locate a driveway.

What kinds of buildings fit best near Coulter?

Medical offices, clinics, professional offices and neighborhood retail are common, given the Texas Tech medical leases nearby and the growth to the west. We help owners compare a stand-alone building with a small multi-tenant center.

Do I need a floodplain permit in Randall County?

Randall County says no construction can begin without a Floodplain Development Permit, with Class A for development outside and Class B for development inside the mapped 100-year floodplain. Inside the city limits, the city's rules apply as well. We confirm which permit applies and who signs it.

Why would a builder recommend piers on one lot and a slab on another?

Soils vary. Clay with a high shrink-swell potential, shallow caliche or a high water table may call for drilled piers, a thicker slab or select fill. A geotechnical report tells us which. The right foundation is the least expensive one that stays level.