Our Data Sources
1, Bryn Sisillt, Caernarfon has 2 entries in the Land Registry , most recently in October 2025 and a single entry in the EPC database dated October 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 1, Bryn Sisillt, Caernarfon would be worth £117,162, with a potential rental value of £654 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £103,772, with a rental value of £579 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
1, Bryn Sisillt, Caernarfon occupies a 130 m2 plot as recorded by HM Land Registry.
Of the 5 other houses in this postcode, 2 have recorded plot sizes, and this one ranks as the largest.
Energy Efficiency
1, Bryn Sisillt, Caernarfon has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 29 Oct 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
1, Bryn Sisillt, Caernarfon last changed hands on 15th October 2025, selling for £130,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 29.9% since October 2025.
- Sold Oct 2025£130,000
- Sold Jan 2020£64,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 70 sales of comparable properties within 3.4 kilometres of 1, Bryn Sisillt, Caernarfon across the last 2 years.
Most recently, 5, Bryn Sisillt, Caernarfon, LL54 6SP, a freehold house, sold at £98,500 on the 9th May 2024.
Read more about house prices in LL54.
- Sold May 2024£98,500 | 3 Bed House5, Bryn Sisillt, Caernarfon, LL54 6SP5, Bryn Sisillt, Caernarfon, LL54 6SP
- Sold Oct 2022£145,500 | 3 Bed House104, Rhedyw Road, Caernarfon, LL54 6SW104, Rhedyw Road, Caernarfon, LL54 6SW
- Sold Sep 2022£125,000 | 3 Bed House99, Rhedyw Road, Caernarfon, LL54 6SN99, Rhedyw Road, Caernarfon, LL54 6SN
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 1, Bryn Sisillt, Caernarfon as the 2nd largest and the 2nd most expensive of the 5 addresses on Bryn Sisillt, Llanllyfni, Caernarfon, LL54.
Against the LL54 postcode district average, it is £110k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Criccieth|13.9 km away
- Penychain|15.7 km away
- Porthmadog|15.7 km away
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












