Our Data Sources
11, Trefonnen Estate, Holyhead has no records in the Land Registry and a single entry in the EPC database dated October 2019.
We combine this information with public data 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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 11, Trefonnen Estate, Holyhead is in very good condition we estimate a sale value of £277,344 and a rental value of £1,083 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £245,648 and a rental value of £959 per month.
Plot Size
According to data from HM Land Registry, 11, Trefonnen Estate, Holyhead sits on a plot of 224 m2.
We have plot size data on 15 out of 29 other houses in the postcode and 11, Trefonnen Estate, Holyhead sits on the 13th largest plot.
Energy Efficiency
11, Trefonnen Estate, Holyhead has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Oct 2019.
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
According to the Land Registry and our network of Estate Agents, there have been 88 sales of properties similar to 11, Trefonnen Estate, Holyhead within a radius of 1.1 kilometres since 2019.
The most recent example is 87, Parc Tyddyn Bach, Holyhead, LL65 1NZ, a freehold house which sold for £290,000 on the 14th November 2025.
Read more about house prices in LL65.
- Sold Nov 2025£290,000 | 4 Bed House87, Parc Tyddyn Bach, Holyhead, LL65 1NZ87, Parc Tyddyn Bach, Holyhead, LL65 1NZ
- Sold Feb 2025£335,000 | 4 Bed House94, Parc Tyddyn Bach, Holyhead, LL65 1NZ94, Parc Tyddyn Bach, Holyhead, LL65 1NZ
- Sold Jan 2024£262,000 | 3 Bed House24, Clos Y Goleudy, Holyhead, LL65 1BZ24, Clos Y Goleudy, Holyhead, LL65 1BZ
- Sold Sep 2023£272,000 | 3 Bed House13, Clos Y Goleudy, Holyhead, LL65 1BZ13, Clos Y Goleudy, Holyhead, LL65 1BZ
- Sold Dec 2022£300,000 | 4 Bed House39, Clos Y Goleudy, Holyhead, LL65 1BZ39, Clos Y Goleudy, Holyhead, LL65 1BZ
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 £209,510, ranging from £145,722 to £243,432.
- 12 Trefonnen Estate
3 Bed House | 11 m | Est. Value: £237,492
- 10 Trefonnen Estate
3 Bed House | 13 m | Est. Value: £222,662
- Ffynnon Gorllas
4 Bed House | 18 m | Est. Value: £154,616
- 14 Trefonnen Estate
3 Bed House | 23 m | Est. Value: £229,621
- Anwylfa
3 Bed House | 24 m | Est. Value: £145,722
Location Comparison
Trefonnen Estate, Holyhead, LL65 has a total of 29 addresses. According to our analysis of all the public data, 11, Trefonnen Estate, Holyhead is the 2nd largest and the 4th most expensive property on the street.
When compared to the postcode district it is £38k more expensive than the average property in LL65.
More reading links
Schools Nearby
Public Transport Nearby
- Holyhead|1.4 km away
- Valley|6.7 km away
- Rhosneigr|12.8 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.





