What is the average house price in Altarnun?
£350,333

Average price per property type

Detached house illustration

Detached

£392,500

Semi-detached house illustration

Semi-Detached

£294,500

Terraced house illustration

Terraced

£172,000

Are prices going up or down?

Short term 📉

Prices decreased by £81,595 (18.89%) over the past year

JUL 2025JUN 2026

Long term 📈

Prices increased by £103,836 (42.12%) over the past 10 years

JUN 2016JUN 2026

Quick answers for Altarnun

5 key facts at a glance.

Most expensive houses in Altarnun

The five highest recorded property sales in Altarnun.

View all expensive houses

How do house prices in Altarnun compare with nearby areas?

Altarnun compared with the 6 nearest other areas in Cornwall.

Compare Altarnun with a different area

Data sources

Location boundary data sourced from OpenStreetMap and price information is from HM Land Registry

Last updated at 15 September 2026 at 07:26 with the latest Land Registry data (June 2026). The Altarnun dataset covers 51 postcodes.

Read our full data methodology

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

About·Data methodology