Our Data Sources
4, Cil Isaf, Caernarfon has no records in the the Land Registry and a single entry in the EPC database dated March 2016.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 4, Cil Isaf, Caernarfon would be worth £163,492, with a potential rental value of £893 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £144,808, with a rental value of £791 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
4, Cil Isaf, Caernarfon has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 18 Mar 2016.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 141 sales of comparable properties within 510 metres of 4, Cil Isaf, Caernarfon across the last 2 years.
Most recently, 34, Margaret Street, Caernarfon, LL55 1NB, a freehold house, sold at £147,500 on the 19th December 2025.
Read more about house prices in LL55.
- Sold Dec 2025£147,500 | 3 Bed House34, Margaret Street, Caernarfon, LL55 1NB34, Margaret Street, Caernarfon, LL55 1NB
- Sold Feb 2025£168,500 | 3 Bed House6, Edward Street, Caernarfon, LL55 1PH6, Edward Street, Caernarfon, LL55 1PH
- Sold Aug 2024£147,000 | 3 Bed House38, Margaret Street, Caernarfon, LL55 1NB38, Margaret Street, Caernarfon, LL55 1NB
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 4, Cil Isaf, Caernarfon as the 12th largest and the 12th most expensive of the 18 addresses on Cil Isaf, Caernarfon, LL55.
Against the LL55 postcode district average, it is £66k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Llanfairpwll|9.8 km away
- Bangor (Gwynedd)|12.5 km away
- Bodorgan|12.6 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












