Grade II* listed · Cornwall

Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block

Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block is a Grade II* listed building in Cornwall, first listed on 27 November 1985. It is one of 583 Grade II* entries among 12,596 listed buildings in Cornwall; 35% of Cornwall’s current entries were listed before it.

List entry
FieldValue
NameTrethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block
GradeGrade II* — particularly important, more than special interest
List entry number1141044
Date first listed27 November 1985
Local planning authorityCornwall
Location50.22413, -4.89893 (map)
Official recordHistoric England list entry 1141044

Planning works on this listed building?

Planium checks which consents Cornwall will require for your works on Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block, 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 particularly important buildings of more than special interest — about 5.8% of listed buildings. Applications for listed building consent are notified to Historic England.

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 Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block

NameGradeDistance
Thatch CottageII471 m
Quarry CottageII606 m
Proncha and Garden WallsII706 m
Portloe ChurchII743 m
Blue House, 2 Lime Kilns and Cliff GardenII750 m
Corfingle Corfingle CottageII751 m
Spring ParcII758 m
Cliff VillasII787 m
Beach Cottage Beach HillII787 m
Cove Cottage, Hideaway, the Cottage, and Builiding Approximately 5 Metres to North of Bay CottageII794 m

Frequently asked questions

Is Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block listed?
Yes. Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block is on the National Heritage List for England as a Grade II* listed building, list entry number 1141044, first listed on 27 November 1985. The full list entry with its description and map is on Historic England’s website.
Do I need consent for works to Trethennal Manor Farmhouse Adjoining Wall, Gate Piers and Mounting Block?
Works that affect its character as a building of special architectural or historic interest — inside or out — need listed building consent from Cornwall, 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.