Grade I listed · Brentwood

Thorndon Hall

Thorndon Hall is a Grade I listed building in Brentwood, first listed on 21 October 1958. It is one of 12 Grade I entries among 522 listed buildings in Brentwood; 5% of Brentwood’s current entries were listed before it.

List entry
Field	Value
Name	Thorndon Hall
Grade	Grade I — exceptional interest
List entry number	1297212
Date first listed	21 October 1958
Local planning authority	Brentwood
Location	51.60199, 0.33354 (map)
Official record	Historic England list entry 1297212

Planning works on this listed building?

Planium checks which consents Brentwood will require for your works on Thorndon Hall, 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 I buildings are of exceptional interest — only about 2.5% of listed buildings in England. Any application for listed building consent is notified to Historic England, and alterations are scrutinised closely.

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 Thorndon Hall

Name	Grade	Distance
Orchard House with Garden Wall and Orchard Wall	II	408 m
Chantry Chapel and Mausoleum	II*	437 m
Stable Complex 30 Metres South of Dairy Farmhouse	II	590 m
Church of St Nicholas	II*	653 m
Rose Cottage	II	747 m
Swift Cottage	II	748 m
57 and 59, Brentwood Road	II	751 m
Kennel House	II	757 m
Salmond'S Farmhouse	II	797 m
77, Brentwood Road	II	809 m

Frequently asked questions

Is Thorndon Hall listed?

Yes. Thorndon Hall is on the National Heritage List for England as a Grade I listed building, list entry number 1297212, first listed on 21 October 1958. The full list entry with its description and map is on Historic England’s website.

Do I need consent for works to Thorndon Hall?

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