Grade II listed · North Somerset

Waterworks at Blagdon: By-wash, Weir and Inspection Bridge

Waterworks at Blagdon: By-wash, Weir and Inspection Bridge is a Grade II listed building in North Somerset, first listed on 20 March 2015. It is one of 964 Grade II entries among 1,079 listed buildings in North Somerset; 99% of North Somerset’s current entries were listed before it.

List entry
Field	Value
Name	Waterworks at Blagdon: By-wash, Weir and Inspection Bridge
Grade	Grade II — special interest
List entry number	1424248
Date first listed	20 March 2015
Local planning authority	North Somerset
Location	51.33886, -2.71427 (map)
Official record	Historic England list entry 1424248

Planning works on this listed building?

Planium checks which consents North Somerset will require for your works on Waterworks at Blagdon: By-wash, Weir and Inspection Bridge, lists what the heritage statement must cover and drafts the application text.

Ask Planium what consent you need

What the grade means for works

Grade II buildings are of special interest and make up over 90% of listed buildings in England. Most alterations, extensions and many internal changes still need listed building consent from the council.

The protection covers the whole building, inside and out, plus fixtures and attached structures. Typical works that need consent: replacing windows or doors, removing walls or historic fabric, changing roof coverings, installing solar panels or external insulation, and adding extensions.

Listed buildings near Waterworks at Blagdon: By-wash, Weir and Inspection Bridge

Name	Grade	Distance
Waterworks at Blagdon: Road Bridge over the By-wash	II	105 m
Waterworks at Blagdon: Outlet with Portal and Bridge	II	125 m
Waterworks at Blagdon: Pumping Station with Receiving Tanks	II*	225 m
Butcombe Farmhouse	II*	599 m
Waterworks at Blagdon: former meter house	II	647 m
Blagdon Lodge	II	804 m
Walnut Tree House	II	928 m
Court Farmhouse	II	965 m
Blagdon House	II	1.0 km
Fir Tree Farmhouse and Attached Outbuildings	II	1.0 km

Frequently asked questions

Is Waterworks at Blagdon: By-wash, Weir and Inspection Bridge listed?

Yes. Waterworks at Blagdon: By-wash, Weir and Inspection Bridge is on the National Heritage List for England as a Grade II listed building, list entry number 1424248, first listed on 20 March 2015. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Waterworks at Blagdon: By-wash, Weir and Inspection Bridge?

Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from North Somerset, in addition to any planning permission or building regulations approval. Like-for-like repairs often do not, but confirm with the council’s conservation officer before you start.

Source: National Heritage List for England, © Historic England 2026, via planning.data.gov.uk. Contains Ordnance Survey data © Crown copyright and database right. Licensed under the Open Government Licence v3.0. Retrieved 12 October 2026. Local authority assigned from the list entry point. This page is a summary — the legal record is the official list entry.