Our Data Sources
21, St. Seiriols Close, Holyhead has no records in the Land Registry and a single entry in the EPC database dated August 2023.
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
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 21, St. Seiriols Close, Holyhead is in very good condition we estimate a sale value of £72,304 and a rental value of £586 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £64,041 and a rental value of £519 per month.
Energy Efficiency
21, St. Seiriols Close, Holyhead has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Aug 2023.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 615 property sales within 550 metres of 21, St. Seiriols Close, Holyhead since 2010.
The most recent example is 38, Queens Park, Holyhead, LL65 1PR, a freehold house which sold for £130,000 on the 12th August 2025.
Read more about house prices in LL65.
- Sold Aug 2025£130,000 | 3 Bed House38, Queens Park, Holyhead, LL65 1PR38, Queens Park, Holyhead, LL65 1PR
- Sold Aug 2025£141,000 | 3 Bed House37, Maes Y Dref, Holyhead, LL65 1PN37, Maes Y Dref, Holyhead, LL65 1PN
- Sold Mar 2025£117,000 | 3 Bed House4, St. Seiriols Close, Holyhead, LL65 1RD4, St. Seiriols Close, Holyhead, LL65 1RD
- Sold Oct 2024£129,000 | 3 Bed House6, St. Seiriols Close, Holyhead, LL65 1RD6, St. Seiriols Close, Holyhead, LL65 1RD
- Sold Mar 2024£71,000 | 3 Bed Flat24, St. Seiriols Close, Holyhead, LL65 1RD24, St. Seiriols Close, Holyhead, LL65 1RD
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 £80,896, ranging from £68,861 to £92,179.
- 22 St. Seiriols Close
3 Bed Flat | 0 m | Est. Value: £90,545
- 24 St. Seiriols Close
3 Bed Flat | 4 m | Est. Value: £92,179
- 23 St. Seiriols Close
2 Bed Flat | 4 m | Est. Value: £68,861
- 19 St. Seiriols Close
2 Bed Flat | 6 m | Est. Value: £68,861
- 20 St. Seiriols Close
3 Bed Flat | 6 m | Est. Value: £90,545
Location Comparison
St. Seiriols Close, Holyhead, LL65 has a total of 38 addresses. According to our analysis of all the public data, 21, St. Seiriols Close, Holyhead is the 35th largest and the 36th most expensive property on the street.
When compared to the postcode district it is £159k less expensive than the average property in LL65.
More reading links
Schools Nearby
Public Transport Nearby
- Holyhead|700 m away
- Valley|6.0 km away
- Rhosneigr|12.2 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.












