Underground Car Park Substructure in Taunton SW — Below-Ground Parking

Underground car park substructures are needed where a commercial or residential building requires below-ground parking. They suit developers, main contractors, and commercial clients who want a single point of contact for the substructure.

Typical underground car park projects include basements for commercial units, residential developments, and mixed-use buildings with below-ground parking.

An underground car park substructure is the below-ground structure that creates parking space beneath a building. The substructure must be engineered for the lateral earth and water pressures, the loads from the building above, and the waterproofing specification. We deliver the complete package: pile design, retention, excavation, RC walls and slab, waterproofing specification and construction to DPC. The director oversees every project personally.

We assess the ground and the structural requirements, then design the substructure — retention, walls, slab and waterproofing. Our team installs the retention, excavates, constructs the RC walls and slab, and specifies the waterproofing. We coordinate with building control throughout.

Underground car park substructure cost depends on the size, the depth, the retention required, the RC specification, and the waterproofing. Access and ground conditions also affect cost. We provide a fixed quote within 48 hours of the site visit.

We provide a fixed, written quote within 48 hours of the site visit. You will know exactly what the job costs before any equipment arrives on your property.

Taurus Piling & Foundations Ltd is an owner-operated piling and foundation contractor based in Taunton, serving Somerset, London and the wider South West. We are fully insured and CHAS accredited, with an in-house structural piling design team — so your project moves without waiting on a third party. Every project is overseen personally by the director. Free quotes are provided within 48 hours, and every job is backed by a satisfaction guarantee.

How do you waterproof an underground car park?

We specify a waterproofing system — either integral waterproofing in the concrete, an external membrane, or an internal tanking system — based on the ground and the water table. The waterproofing is designed as part of the substructure, so the structure and the waterproofing work together.