Our Data Sources
Treanna, Caernarfon has a single entry in the Land Registry from January 2026 and a single entry in the EPC database dated September 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate Treanna, Caernarfon would be worth £228,583, with a potential rental value of £953 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £202,459, with a rental value of £844 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
Treanna, Caernarfon occupies a 381 m2 plot as recorded by HM Land Registry.
Of the 26 other houses in this postcode, 20 have recorded plot sizes, and this one ranks as the 15th largest.
Energy Efficiency
Treanna, Caernarfon has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 12 Sep 2024.
The property is not connected to mains gas and has some double glazing. It is heated using Electric storage heaters.
Sold Prices
Treanna, Caernarfon last changed hands on 22nd January 2026, selling for £145,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 26.2% since January 2026.
- Sold Jan 2026£145,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 86 sales of comparable properties within 2.8 kilometres of Treanna, Caernarfon across the last 2 years.
Most recently, Hafod, Caernarfon, LL55 3EG, a freehold house, sold at £237,000 on the 3rd June 2025.
Read more about house prices in LL55.
- Sold Jun 2025£237,000 | 3 Bed HouseHafod, Caernarfon, LL55 3EGHafod, Caernarfon, LL55 3EG
- Sold Nov 2020£142,500 | 3 Bed House2 Mount Pleasant, Caernarfon, LL55 3EG2 Mount Pleasant, Caernarfon, LL55 3EG
- Sold Mar 2008£135,000 | 3 Bed HouseYsgubor Fach, Caernarfon, LL55 3EGYsgubor Fach, Caernarfon, LL55 3EG
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Treanna, Caernarfon as the 31st largest and the 27th most expensive of the 43 addresses on Gallt Y Foel, Caernarfon, LL55.
Against the LL55 postcode district average, it is £4k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Bangor (Gwynedd)|9.2 km away
- Llanfairpwll|10.7 km away
- Llanfairfechan|16.0 km away
Available Internet Speeds
Ofcom's latest figures show poor internet coverage in this area, which may mean weak or no connectivity.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
