Our Data Sources
12, Lon Cefn Du, Caernarfon has no records in the Land Registry and a single entry in the EPC database dated June 2022.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate 12, Lon Cefn Du, Caernarfon would be worth £140,303, with a potential rental value of £794 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £124,269, with a rental value of £703 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
12, Lon Cefn Du, Caernarfon has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 10 Jun 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 58 sales of comparable properties within 580 metres of 12, Lon Cefn Du, Caernarfon since 2010.
Most recently, 47, Assheton Terrace, Caernarfon, LL55 2LD, a freehold house, sold at £146,250 on the 20th February 2026.
Read more about house prices in LL55.
- Sold Feb 2026£146,250 | 3 Bed House47, Assheton Terrace, Caernarfon, LL55 2LD47, Assheton Terrace, Caernarfon, LL55 2LD
- Sold Oct 2024£136,500 | 3 Bed House6, St. Helens Street, Caernarfon, LL55 2HU6, St. Helens Street, Caernarfon, LL55 2HU
- Sold Jun 2024£90,000 | 3 Bed House9, Assheton Terrace, Caernarfon, LL55 2LD9, Assheton Terrace, Caernarfon, LL55 2LD
- Sold Jun 2024£156,350 | 3 Bed House57, Lon Eilian, Caernarfon, LL55 2EG57, Lon Eilian, Caernarfon, LL55 2EG
- Sold Apr 2024£135,000 | 3 Bed House9, Beulah Square, Caernarfon, LL55 2LA9, Beulah Square, Caernarfon, LL55 2LA
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 £132,314, ranging from £122,817 to £146,558.
- 8 Lon Cefn Du
3 Bed House | 13 m | Est. Value: £128,357
- 6 Lon Cefn Du
3 Bed House | 21 m | Est. Value: £138,623
- 7 Lon Cefn Du
3 Bed House | 28 m | Est. Value: £125,617
- 5 Lon Cefn Du
3 Bed House | 31 m | Est. Value: £125,617
- 14 Lon Cefn Du
3 Bed House | 33 m | Est. Value: £146,558
Location Comparison
Our analysis of the public data ranks 12, Lon Cefn Du, Caernarfon as the 7th largest and the 7th most expensive of the 20 addresses on Lon Cefn Du, Caernarfon, LL55.
Against the LL55 postcode district average, it is £87k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Llanfairpwll|10.0 km away
- Bangor (Gwynedd)|12.6 km away
- Bodorgan|12.9 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.












