Hot tub & swim spa bases in Corby
Reinforced bases for hot tubs and swim spas in Corby, built to the supplier's requirements, including part-sunk and fully sunk installs.
In Corby a hot tub base starts from about £2,000 and a swim spa slab typically costs £4,000–£6,500; part-sunk installations start from about £17,500 and fully sunk from about £25,000. The base is built to the supplier's published requirements, and in a rear garden it is normally permitted development.
- Typical cost
- Swim spa slab £4,000–£6,500
- Time on site
- Two to five days for a slab
- Ground
- Ironstone, with clay and restored ground
- Guarantee
- 5 years, in writing
Our 2026 guide prices, all in. Your fixed price comes in writing after the site visit. Council fees checked October 2026.
What hot tub & swim spa bases in Corby usually involve
A filled swim spa can weigh as much as several cars on a small footprint, so it needs a reinforced concrete slab built to the supplier's published requirements. We build the base, the drainage and the access so the unit can be craned or wheeled straight in.
Corby grew as a steel town: a New Town designated in 1950, with estates such as Kingswood, Lodge Park, Beanfield and Danesholme built for steelworkers, around the older villages of Corby Village, Great Oakley and Weldon. Priors Hall Park in the north east is planned for more than 5,000 homes, and many of its gardens are handed over as bare, compacted plots.
We cover Corby (NN17 and NN18) and the villages around it, including Weldon, Great Oakley, Corby Village, Gretton, Cottingham, Middleton, Rockingham, Stanion and East Carlton.
Ground, drainage and conservation in Corby
Corby sits on the Northampton Sand ironstone that fed the steelworks, and large areas around the town were opencast quarried and restored. Ground can change from natural ironstone to clay or fill within a garden, so we dig before we design the base and drainage.
Corby has nine conservation areas, including the Old Village, Cottingham and Middleton, Gretton, Rockingham, Stanion, Great Oakley and Weldon. Its only Article 4 direction (Kingswood) controls houses in multiple occupation and does not affect driveways, porches or extensions.
The Willow Brook runs through Corby and Weldon, with an Environment Agency flood storage reservoir at Weldon, so properties near the brook need drainage planned with care. You can check any address on the Environment Agency flood map.
Sources: North Northamptonshire conservation areas · Priors Hall Park.
Permissions and fees in Corby
- PlanningA hot tub or swim spa on a base in the rear garden is normally permitted development; an enclosure or roof over it counts as an outbuilding and has to meet the outbuilding size and height limits.
- TreesTrees in a conservation area need six weeks' notice before work, and protected trees need consent; both are free. North Northamptonshire: tree protection
- Design and priceWe measure up, plan levels and drainage, and give you one fixed written price.
Council fees and rules checked October 2026. Planning fees are the national fees from 1 April 2026.
What you get
- Reinforced concrete slab to the supplier's published requirements
- Level and square, so the warranty holds
- Drainage and access planned for delivery day
- Part-sunk and fully sunk installations with retaining walls
The specification
- Ground dug out and checked
- Compacted MOT Type 1 sub-base
- Steel mesh reinforcement
- Concrete slab, power floated level
- Ducting for power where needed
- Five year workmanship guarantee in writing
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Hot tub & swim spa bases in Corby: questions
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Request a site visit in Corby
We measure up, check levels and drainage, and send a written proposal with the build-up, the programme and one whole price. No pressure and no follow-up sales calls.