Our Data Sources
20, Mountjoy Avenue, Penarth has 31 entries in the Land Registry, most recently in February 2025 and a single entry in the EPC database dated August 2024.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 20, Mountjoy Avenue, Penarth is in very good condition we estimate a sale value of £517,519 and a rental value of £2,270 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £458,374 and a rental value of £2,010 per month.
Plot Size
According to data from HM Land Registry, 20, Mountjoy Avenue, Penarth sits on a plot of 340 m2.
We have plot size data on 24 out of 25 other houses in the postcode and 20, Mountjoy Avenue, Penarth sits on the largest plot.
Energy Efficiency
20, Mountjoy Avenue, Penarth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 01 Aug 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
According to HM Land Registry, 20, Mountjoy Avenue, Penarth was last sold on 12th February 2025 for £499,000 and was recorded as a freehold house.
The property has had 3 sales since 1995.
Since February 2025, the market for similar properties has dropped by 3.3%.
- Sold Feb 2025£499,000
- Sold Jun 2017£342,000
- Sold Jan 1999£85,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 188 sales of properties similar to 20, Mountjoy Avenue, Penarth within a radius of 560 metres since 2015.
The most recent example is 63, Cornerswell Road, Penarth, CF64 2UY, a freehold house which sold for £540,000 on the 4th November 2025.
Read more about house prices in CF64.
- Sold Nov 2025£540,000 | 4 Bed House63, Cornerswell Road, Penarth, CF64 2UY63, Cornerswell Road, Penarth, CF64 2UY
- Sold Oct 2025£460,000 | 4 Bed House6, Dryden Road, Penarth, CF64 2RT6, Dryden Road, Penarth, CF64 2RT
- Sold Sep 2025£570,000 | 4 Bed House71, Cornerswell Road, Penarth, CF64 2UY71, Cornerswell Road, Penarth, CF64 2UY
- Sold Jun 2025£499,950 | 3 Bed House39, Mountjoy Avenue, Penarth, CF64 2SY39, Mountjoy Avenue, Penarth, CF64 2SY
- Sold May 2025£470,000 | 3 Bed House20, Mountjoy Crescent, Penarth, CF64 2SZ20, Mountjoy Crescent, Penarth, CF64 2SZ
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 £444,505, ranging from £411,436 to £467,380.
- 20 Mountjoy Crescent
3 Bed House | 9 m | Est. Value: £457,282
- 26 Mountjoy Avenue
3 Bed House | 23 m | Est. Value: £455,200
- 31 Mountjoy Avenue
3 Bed House | 39 m | Est. Value: £466,033
- 30 Mountjoy Avenue
3 Bed House | 40 m | Est. Value: £433,161
- 33 Mountjoy Avenue
3 Bed House | 41 m | Est. Value: £463,473
Location Comparison
Mountjoy Avenue, Penarth, CF64 has a total of 44 addresses. According to our analysis of all the public data, 20, Mountjoy Avenue, Penarth is the 2nd largest and the 2nd most expensive property on the street.
When compared to the postcode district it is £91k more expensive than the average property in CF64.
More reading links
Schools Nearby
Public Transport Nearby
- Dingle Road|700 m away
- Cogan|1.0 km away
- Penarth|1.0 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast 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.












