Grade I listed · Hertsmere

Tyttenhanger House

Tyttenhanger House is a Grade I listed building in Hertsmere, first listed on 25 February 1952. It is one of 3 Grade I entries among 316 listed buildings in Hertsmere; 6% of Hertsmere’s current entries were listed before it.

List entry
FieldValue
NameTyttenhanger House
GradeGrade I — exceptional interest
List entry number1174935
Date first listed25 February 1952
Local planning authorityHertsmere
Location51.72797, -0.27626 (map)
Official recordHistoric England list entry 1174935

Planning works on this listed building?

Planium checks which consents Hertsmere will require for your works on Tyttenhanger House, lists what the heritage statement must cover and drafts the application text.

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 Tyttenhanger House

Frequently asked questions

Is Tyttenhanger House listed?
Yes. Tyttenhanger House is on the National Heritage List for England as a Grade I listed building, list entry number 1174935, first listed on 25 February 1952. The full list entry with its description and map is on Historic England’s website.
Do I need consent for works to Tyttenhanger House?
Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Hertsmere, 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.