Our Data Sources
Isfryn Rallt, Caernarfon has 21 entries in the Land Registry, most recently in June 2024 and a single entry in the EPC database dated October 2025.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate Isfryn Rallt, Caernarfon would be worth £144,230, with a potential rental value of £787 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £127,747, with a rental value of £697 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
Isfryn Rallt, Caernarfon occupies a 157 m2 plot as recorded by HM Land Registry.
Of the 13 other houses in this postcode, 9 have recorded plot sizes, and this one ranks as the 7th largest.
Energy Efficiency
Isfryn Rallt, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Oct 2025.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (oil).
Sold Prices
Isfryn Rallt, Caernarfon last changed hands on 14th June 2024, selling for £102,500. 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 dropped by 15.7% since June 2024.
- Sold Jun 2024£102,500
- Sold Jan 1998£38,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 13 sales of comparable properties within 2.5 kilometres of Isfryn Rallt, Caernarfon since 2007.
Most recently, 2, Cae'R Eglwys, Caernarfon, LL55 4FF, a freehold house, sold at £140,000 on the 1st August 2025.
Read more about house prices in LL55.
- Sold Aug 2025£140,000 | 2 Bed House2, Cae'R Eglwys, Caernarfon, LL55 4FF2, Cae'R Eglwys, Caernarfon, LL55 4FF
- Sold Apr 2024£75,000 | 2 Bed House2 Bryn Hyfryd Terrace, Caernarfon, LL55 4DU2 Bryn Hyfryd Terrace, Caernarfon, LL55 4DU
- Sold Jan 2024£96,000 | 2 Bed House3 Bryn Hyfryd Terrace, Caernarfon, LL55 4DU3 Bryn Hyfryd Terrace, Caernarfon, LL55 4DU
- Sold Feb 2023£90,000 | 2 Bed HouseGelynen House, Caernarfon, LL55 4DEGelynen House, Caernarfon, LL55 4DE
- Sold Jul 2022£110,000 | 2 Bed House4 Bryn Coch Terrace, Caernarfon, LL55 4AN4 Bryn Coch Terrace, Caernarfon, LL55 4AN
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £195,124, ranging from £156,610 to £247,396.
- Ty Coch
3 Bed House | 10 m | Est. Value: £218,816
- Tremallt
3 Bed House | 18 m | Est. Value: £184,860
- Elidir View
2 Bed House | 22 m | Est. Value: £157,408
- Gorswen
3 Bed House | 22 m | Est. Value: £241,926
- Deiniol House
3 Bed House | 27 m | Est. Value: £202,218
Location Comparison
Our analysis of the public data ranks Isfryn Rallt, Caernarfon as the 102nd largest and the 99th most expensive of the 114 addresses on Brynrefail, Caernarfon, LL55.
Against the LL55 postcode district average, it is £83k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Bangor (Gwynedd)|8.9 km away
- Llanfairpwll|9.5 km away
- Llanfairfechan|17.0 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












