Grade II listed · Welwyn Hatfield

Lemsford Mill

Lemsford Mill is a Grade II listed building in Welwyn Hatfield, first listed on 28 February 1978. It is one of 398 Grade II entries among 429 listed buildings in Welwyn Hatfield; 22% of Welwyn Hatfield’s current entries were listed before it.

List entry
Field	Value
Name	Lemsford Mill
Grade	Grade II — special interest
List entry number	1173499
Date first listed	28 February 1978
Local planning authority	Welwyn Hatfield
Location	51.79675, -0.23303 (map)
Official record	Historic England list entry 1173499

Planning works on this listed building?

Planium checks which consents Welwyn Hatfield will require for your works on Lemsford Mill, 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 Lemsford Mill

Name	Grade	Distance
The Mill House	II	14 m
Three Outbuildings to North,north-West of Lemsford Mill	II	24 m
Mill Cottage	II	29 m
Number 37 Including Outhouse	II	64 m
The Old Cottage	II	82 m
The Sun Inn	II	114 m
Bridge Over River Lea Or Lee	II	132 m
Bridge House	II	135 m
22 and 24, Lemsford Village	II	145 m
20, Lemsford Village	II	209 m

Frequently asked questions

Is Lemsford Mill listed?

Yes. Lemsford Mill is on the National Heritage List for England as a Grade II listed building, list entry number 1173499, first listed on 28 February 1978. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Lemsford Mill?

Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Welwyn Hatfield, 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.