Our Data Sources
21, Speedwell Close, Cardiff has 21 entries in the Land Registry , most recently in May 2015 and a single entry in the EPC database dated November 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high 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, Speedwell Close, Cardiff is in very good condition we estimate a sale value of £385,899 and a rental value of £1,780 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £341,796 and a rental value of £1,576 per month.
Plot Size
According to data from HM Land Registry, 21, Speedwell Close, Cardiff sits on a plot of 121 m2.
We have plot size data on 24 out of 24 other houses in the postcode and 21, Speedwell Close, Cardiff sits on the 24th largest plot.
Energy Efficiency
21, Speedwell Close, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 04 Nov 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 21, Speedwell Close, Cardiff was last sold on 29th May 2015 for £215,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since May 2015, the market for similar properties has risen by 67.4%.
- Sold May 2015£215,000
- Sold Dec 2006£204,995
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 225 sales of properties similar to 21, Speedwell Close, Cardiff within a radius of 690 metres over the last 2 years.
The most recent example is 22, Maes Y Bryn, Cardiff, CF23 8XQ, a freehold house which sold for £385,000 on the 17th March 2026.
Read more about house prices in CF23.
- Sold Mar 2026£385,000 | 3 Bed House22, Maes Y Bryn, Cardiff, CF23 8XQ22, Maes Y Bryn, Cardiff, CF23 8XQ
- Sold Sep 2025£305,000 | 4 Bed House23, Speedwell Close, Cardiff, CF23 8QF23, Speedwell Close, Cardiff, CF23 8QF
- Sold May 2022£335,200 | 4 Bed House13, Capel Edeyrn, Cardiff, CF23 8XJ13, Capel Edeyrn, Cardiff, CF23 8XJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Speedwell Close, Pontprennau, Cardiff, CF23 has a total of 24 addresses. According to our analysis of all the public data, 21, Speedwell Close, Cardiff is the 22nd largest and the 22nd most expensive property on the street.
When compared to the postcode district it is £5k more expensive than the average property in CF23.
More reading links
Schools Nearby
Public Transport Nearby
- Llanishen|3.5 km away
- Heath High Level|3.8 km away
- Heath Low Level|3.9 km away
Available Internet Speeds
According to recent data from Ofcom, there is poor internet coverage in this area which may result in poor or no internet connectivity.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
