Our Data Sources
20, St. Helens Street, Caernarfon has 31 entries in the Land Registry , most recently in October 2015 and a single entry in the EPC database dated April 2025.
We combine this information with that 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 20, St. Helens Street, Caernarfon would be worth £115,001, with a potential rental value of £656 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £101,858, with a rental value of £581 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
20, St. Helens Street, Caernarfon occupies a 41 m2 plot as recorded by HM Land Registry.
Of the 20 other houses in this postcode, 19 have recorded plot sizes, and this one ranks as the 16th largest.
Energy Efficiency
20, St. Helens Street, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Apr 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
20, St. Helens Street, Caernarfon last changed hands on 7th October 2015, selling for £66,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has risen by 81.1% since October 2015.
- Sold Oct 2015£66,000
- Sold Oct 2007£65,350
- Sold Sep 1996£27,400
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 61 sales of comparable properties within 580 metres of 20, St. Helens Street, Caernarfon across the last 2 years.
Most recently, 7, Hendre Street, Caernarfon, LL55 2HY, a freehold house, sold at £99,000 on the 3rd October 2025.
Read more about house prices in LL55.
- Sold Oct 2025£99,000 | 2 Bed House7, Hendre Street, Caernarfon, LL55 2HY7, Hendre Street, Caernarfon, LL55 2HY
- Sold May 2025£85,000 | 2 Bed House30, St. Helens Street, Caernarfon, LL55 2HU30, St. Helens Street, Caernarfon, LL55 2HU
- Sold Jan 2023£104,000 | 2 Bed House4, Hendre Street, Caernarfon, LL55 2HY4, Hendre Street, Caernarfon, LL55 2HY
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 20, St. Helens Street, Caernarfon as the 14th largest and the 14th most expensive of the 20 addresses on St. Helens Street, Caernarfon, LL55.
Against the LL55 postcode district average, it is £112k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Llanfairpwll|10.2 km away
- Bodorgan|12.5 km away
- Bangor (Gwynedd)|13.0 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.
