Our Data Sources
20, Knowbury Avenue, Penarth has 21 entries in the Land Registry, most recently in February 2021 and a single entry in the EPC database dated November 2019.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 20, Knowbury Avenue, Penarth would be worth £965,690, with a potential rental value of £3,787 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £855,326, with a rental value of £3,354 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
20, Knowbury Avenue, Penarth occupies a 539 m2 plot as recorded by HM Land Registry.
All 24 other houses in this postcode have recorded plot sizes, and this one ranks as the 21st largest.
Energy Efficiency
20, Knowbury Avenue, Penarth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 06 Nov 2019.
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
20, Knowbury Avenue, Penarth last changed hands on 22nd February 2021, selling for £680,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has dropped by 12.2% since February 2021.
- Sold Feb 2021£680,000
- Sold Jan 1997£151,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 85 sales of comparable properties within 1.3 kilometres of 20, Knowbury Avenue, Penarth since 2007.
Most recently, 7, Forrest Road, Penarth, CF64 5BT, a freehold house, sold at £225,000 on the 5th January 2026.
Read more about house prices in CF64.
- Sold Jan 2026£225,000 | 5 Bed House7, Forrest Road, Penarth, CF64 5BT7, Forrest Road, Penarth, CF64 5BT
- Sold Nov 2025£1,085,000 | 5 Bed House6, Robinswood Crescent, Penarth, CF64 3JE6, Robinswood Crescent, Penarth, CF64 3JE
- Sold Sep 2025£830,000 | 5 Bed House117, Westbourne Road, Penarth, CF64 5BR117, Westbourne Road, Penarth, CF64 5BR
- Sold Dec 2023£1,000,000 | 5 Bed House21, Whitcliffe Drive, Penarth, CF64 5RY21, Whitcliffe Drive, Penarth, CF64 5RY
- Sold Oct 2022£900,000 | 5 Bed House19, Robinswood Close, Penarth, CF64 3JG19, Robinswood Close, Penarth, CF64 3JG
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 £701,956, ranging from £527,841 to £934,495.
- 22 Knowbury Avenue
5 Bed House | 13 m | Est. Value: £934,495
- 24 Knowbury Avenue
4 Bed House | 28 m | Est. Value: £678,925
- 17 Knowbury Avenue
5 Bed House | 36 m | Est. Value: £850,595
- 14 Knowbury Avenue
3 Bed House | 40 m | Est. Value: £576,085
- 13 Knowbury Avenue
4 Bed House | 47 m | Est. Value: £755,040
Location Comparison
Our analysis of the public data ranks 20, Knowbury Avenue, Penarth as the 4th largest and the 3rd most expensive of the 24 addresses on Knowbury Avenue, Penarth, CF64.
Against the CF64 postcode district average, it is £514k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Penarth|1.7 km away
- Dingle Road|2.2 km away
- Eastbrook|2.9 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.
