Our Data Sources
6, Trefonwys, Bangor has a single entry in the Land Registry from December 2024 and a single entry in the EPC database dated June 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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 6, Trefonwys, Bangor, we estimate a market value of £376,420 and a rental value of £1,007 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £333,401 and £892 per month respectively.
Plot Size
HM Land Registry records the plot of land for 6, Trefonwys, Bangor as measuring 628 m2.
That makes it the 23rd largest plot in the postcode, where 31 of the 33 other houses have recorded plot data.
Energy Efficiency
6, Trefonwys, Bangor has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 10 Jun 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 6, Trefonwys, Bangor completed on 6th December 2024 at £385,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have dropped by 20.4% over the period since December 2024.
- Sold Dec 2024£385,000
Similar Properties Sold Nearby
Since 2007 25 properties similar to 6, Trefonwys, Bangor have sold within a radius of 590 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 28th November 2025, was 3, Lon Y Ffrwd, Bangor, LL57 2LG, a freehold house which sold for £425,000.
Read more about house prices in LL57.
- Sold Nov 2025£425,000 | 4 Bed House3, Lon Y Ffrwd, Bangor, LL57 2LG3, Lon Y Ffrwd, Bangor, LL57 2LG
- Sold Aug 2025£410,000 | 4 Bed House3, Lon Y Bryn, Bangor, LL57 2LH3, Lon Y Bryn, Bangor, LL57 2LH
- Sold Jul 2024£339,950 | 4 Bed House30, Maes Berea, Bangor, LL57 4TQ30, Maes Berea, Bangor, LL57 4TQ
- Sold Jan 2024£417,500 | 4 Bed HouseHafod, Lon Y Ffrwd, Bangor, LL57 2LGHafod, Lon Y Ffrwd, Bangor, LL57 2LG
- Sold May 2023£330,000 | 4 Bed House9, Trefonwys, Bangor, LL57 2HU9, Trefonwys, Bangor, LL57 2HU
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 £236,446, ranging from £198,274 to £346,187.
- 18 Belmont Avenue
3 Bed House | 35 m | Est. Value: £198,274
- 20 Belmont Avenue
3 Bed House | 36 m | Est. Value: £202,000
- 14 Belmont Avenue
3 Bed House | 38 m | Est. Value: £206,860
- 22 Belmont Avenue
3 Bed House | 40 m | Est. Value: £202,000
- 9 Trefonwys
4 Bed House | 42 m | Est. Value: £339,183
Location Comparison
Of the 33 addresses on Trefonwys, Bangor, LL57, 6, Trefonwys, Bangor comes out as the 15th largest and the 12th most expensive in our analysis of the public data.
It is also £160k more expensive than the average property across the LL57 district.
More reading links
Schools Nearby
Public Transport Nearby
- Bangor (Gwynedd)|900 m away
- Llanfairpwll|4.0 km away
- Llanfairfechan|11.7 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












