When to book groundworks support
- A plot to clear before the build starts
- Foundations to dig to the engineer's drawings
- Drainage or service trenches to run out to the road
- Ground to level for a slab, drive or car park
- Topsoil to strip and stockpile for landscaping later
Groundworks in Llanelli
Operated plant digs footings, forms bases and lays drainage on Llanelli plots, following the engineer's drawings and the conditions on the planning permission.
In Llanelli those conditions often cover coal mining and drainage. Grouting of old workings, surface water removal from the combined sewers and SuDS drainage can each add stages before the footings go in.
Get a quote in LlanelliLlanelli rules that shape groundworks
High-risk patches lie around the town centre, Dafen and Llwynhendy. Drilling or excavation into coal or old workings needs a Mining Remediation Authority permit, applied for before investigation or treatment starts.
Dŵr Cymru asks new development in the catchment to remove surface water from the combined sewers to protect the Burry Inlet. That can mean new soakaways or separate surface water drains.
More than one new house, or a construction area of 100 square metres or more, needs the county council's approval as SuDS Approving Body. Check the SuDS design and drainage condition drawings agree before digging.
Natural Resources Wales's Flood Map for Planning shows which plots by the Burry Inlet are in a flood zone. A revised TAN15 applies to applications validated since 31 March 2025, so check which version decided the permission.
Areas of Llanelli we cover
- Llanelli town centre SA15
- Pwll SA15
- Seaside SA15
- Dafen SA14
- Llwynhendy SA14
- Bynea SA14
- Llangennech SA14
- Burry Port SA16
- Pembrey SA16
Groundworks stages covered
Vegetation, old hardstanding and rubble cleared with operated plant.
Topsoil stripped and stockpiled on site for reuse.
Trenches dug to the line, depth and fall on your drawings.
Strip and trench-fill foundations dug to the dimensions set by the engineer or drawings.
Ground brought to the levels set out for slabs, drives and patios.
Excavated material loaded into dumpers, skips or muck-away lorries.
How a groundworks job is set up
- Locate the services
Get utility plans, scan with a cable locator and mark what is found before any digging.
- Set out the work
Mark the lines, levels and depths on site from the drawings.
- Dig and load
The operator excavates to the marks and loads spoil for removal or reuse.
What the price depends on in Llanelli
- The stages of work and the volume of material
- The machines the job needs, such as an excavator and a dumper
- How long each stage of the work runs
- How spoil will leave the site
- The ground conditions
- Soakaways or separate drains needed to take surface water out of the sewer
- Grouting or other mining treatment programmed ahead of the footings
Groundworks support in Llanelli: questions
Will my Llanelli build need surface water taken out of the sewer?
Check the planning conditions. Where removal is required, the condition sets how much, and the groundworks include the drains or soakaways to achieve it.
When should the Mining Remediation Authority permit be applied for?
Before any investigation or treatment work starts. It can go in before or after the planning application.
Which flood map applies to a plot near Machynys or Pwll?
The Natural Resources Wales Flood Map for Planning. Check it again shortly before submitting plans, as it is updated twice a year.
Groundworks planned in Llanelli?
Send the site address, the drawings, the planning conditions on drainage and coal mining, and whether the mining permit and SAB approval are in place.
This service is carried out by Copperworks Plant Hire, a Dragon Multi-Trade brand.