Our Data Sources
70, Castle Avenue, Penarth has a single entry in the Land Registry from July 2022 and a single entry in the EPC database dated March 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 70, Castle Avenue, Penarth would be worth £357,267, with a potential rental value of £1,947 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £316,437, with a rental value of £1,725 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
70, Castle Avenue, Penarth occupies a 349 m2 plot as recorded by HM Land Registry.
Of the 40 other houses in this postcode, 38 have recorded plot sizes, and this one ranks as the 9th largest.
Energy Efficiency
70, Castle Avenue, Penarth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Mar 2022.
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
70, Castle Avenue, Penarth last changed hands on 25th July 2022, selling for £336,200. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has dropped by 1.8% since July 2022.
- Sold Jul 2022£336,200
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 153 sales of comparable properties within 870 metres of 70, Castle Avenue, Penarth since 2021.
Most recently, 17, Sullivan Close, Penarth, CF64 3QR, a freehold house, sold at £315,000 on the 17th February 2026.
Read more about house prices in CF64.
- Sold Feb 2026£315,000 | 3 Bed House17, Sullivan Close, Penarth, CF64 3QR17, Sullivan Close, Penarth, CF64 3QR
- Sold Sep 2025£387,000 | 3 Bed House22, Castle Avenue, Penarth, CF64 3QS22, Castle Avenue, Penarth, CF64 3QS
- Sold Aug 2025£280,000 | 3 Bed House68, Purcell Road, Penarth, CF64 3QN68, Purcell Road, Penarth, CF64 3QN
- Sold Aug 2025£382,500 | 3 Bed House20, Sullivan Close, Penarth, CF64 3QR20, Sullivan Close, Penarth, CF64 3QR
- Sold Jun 2025£376,000 | 3 Bed House53, Byrd Crescent, Penarth, CF64 3QU53, Byrd Crescent, Penarth, CF64 3QU
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 £351,690, ranging from £214,649 to £467,985.
- 72 Castle Avenue
3 Bed House | 8 m | Est. Value: £334,269
- 68 Castle Avenue
3 Bed House | 12 m | Est. Value: £332,249
- 66 Castle Avenue
3 Bed House | 20 m | Est. Value: £326,078
- 74 Castle Avenue
2 Bed House | 20 m | Est. Value: £214,649
- 39 Castle Avenue
3 Bed House | 31 m | Est. Value: £359,913
Location Comparison
Our analysis of the public data ranks 70, Castle Avenue, Penarth as the 37th largest and the 41st most expensive of the 81 addresses on Castle Avenue, Penarth, CF64.
Against the CF64 postcode district average, it is £61k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Penarth|1.5 km away
- Dingle Road|1.8 km away
- Eastbrook|2.1 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.












