Who regulates septic tanks in Shropshire?
Shropshire is in England, so private sewage discharges are regulated by the Environment Agency. In England, small sewage discharges (up to 2 m³ a day to ground, or 5 m³ a day to surface water) don't need a permit if they meet the general binding rules. Under those rules, septic tanks must not discharge to surface water such as a ditch or stream, systems must meet the relevant British Standard and be sized correctly, and new discharges can't be in or within 50 metres of protected sites or in Source Protection Zone 1. Any new septic tank or treatment plant needs building regulations approval.
Building approval for a new or replacement system comes from Shropshire Council building control or a registered building control approver. Read more in our England regulations guide.
Ground and soil conditions
North Shropshire has heavy clays alongside sandier ground, and the south has the hills, with mixed and often shallow soils over older rocks. Percolation tests vary widely across the county.
Protected waters and environmental checks
The River Clun is a Special Area of Conservation for freshwater pearl mussel and is affected by nutrient neutrality. The Midland Meres and Mosses in north Shropshire are internationally protected wetlands. Discharges near them need extra care and may need a permit.
Local practicalities
Shropshire has lots of farmhouses, barn conversions and cottages, particularly in the Shropshire Hills National Landscape. In the Clun catchment, talk to the council and the Environment Agency early if your project needs planning permission.
Towns and villages covered
Installers we work with cover Shropshire, including:
- Ludlow
- Oswestry
- Bridgnorth
- Church Stretton
- Bishop's Castle
- Craven Arms
- Market Drayton
- Whitchurch
- Wem
- Clun
- Cleobury Mortimer
- Much Wenlock
The list isn't exhaustive. Enter your postcode and we'll find installers who cover your property.
What it typically costs
The figures below are national guide prices from installers' published guides and merchants' list prices, because there's no reliable published data for Shropshire on its own. Expect your quote to reflect the local ground, access and discharge route described above.
- Like-for-like septic tank replacement: roughly £3,000–£7,000
- New septic tank with drainage field: from about £5,500; commonly £5,000–£15,000
- New drainage field: £3,000–£7,000
- Sewage treatment plant unit only: about £2,190–£2,700 inc VAT (equipment only)
- Sewage treatment plant, supplied and installed: commonly £7,500–£15,000
- Emptying: priced by volume. One private tanker firm charges £170 for up to 1,000 gallons and £380 for up to 4,000 gallons
Other areas in England
Norfolk · Suffolk · Lincolnshire · Devon · Cornwall · Cumbria · North Yorkshire · Northumberland · Herefordshire · Somerset · Dorset
Frequently asked questions
We're in the Clun catchment. Does that affect a replacement?
Like-for-like replacements often fall under the existing-discharge rules, but changes to the discharge, extensions or new homes can bring in nutrient-neutrality and permit requirements. Check before committing to a design.
How deep does a drainage field need to be?
Drainage field design follows BS 6297 and Building Regulations Part H, based on your percolation test. Your designer will set trench depths and lengths for your ground.
How much does septic tank replacement cost in Shropshire?
We don't publish made-up local prices. Installers' published guides put a like-for-like replacement at roughly £3,000–£7,000, a new tank with a drainage field at commonly £5,000–£15,000, and a treatment plant at commonly £7,500–£15,000 fitted. Ground and access in Shropshire can move your price either way, so compare site-visit quotes.