Our Data Sources
21, Glyn Simon Close, Cardiff has a single entry in the Land Registry from January 2013 and a single entry in the EPC database dated May 2014.
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 21, Glyn Simon Close, Cardiff would be worth £266,728, with a potential rental value of £1,454 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £236,244, with a rental value of £1,288 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Glyn Simon Close, Cardiff occupies a 129 m2 plot as recorded by HM Land Registry.
All 33 other houses in this postcode have recorded plot sizes, and this one ranks as the 22nd largest.
Energy Efficiency
21, Glyn Simon Close, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 21 May 2014.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
21, Glyn Simon Close, Cardiff last changed hands on 7th January 2013, selling for £125,000. 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 risen by 62.4% since January 2013.
- Sold Jan 2013£125,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 183 sales of comparable properties within 590 metres of 21, Glyn Simon Close, Cardiff since 2017.
Most recently, 12, Blethin Close, Cardiff, CF5 2RR, a freehold house, sold at £263,000 on the 16th March 2026.
Read more about house prices in CF5.
- Sold Mar 2026£263,000 | 3 Bed House12, Blethin Close, Cardiff, CF5 2RR12, Blethin Close, Cardiff, CF5 2RR
- Sold Dec 2025£244,000 | 2 Bed House55, Riversdale, Cardiff, CF5 2QL55, Riversdale, Cardiff, CF5 2QL
- Sold Nov 2025£220,000 | 2 Bed House13, Burne Jones Close, Cardiff, CF5 2RY13, Burne Jones Close, Cardiff, CF5 2RY
- Sold Nov 2025£266,000 | 3 Bed House6, Burne Jones Close, Cardiff, CF5 2RY6, Burne Jones Close, Cardiff, CF5 2RY
- Sold Oct 2025£290,000 | 3 Bed House11, Beale Close, Cardiff, CF5 2RU11, Beale Close, Cardiff, CF5 2RU
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 £247,768, ranging from £221,559 to £381,237.
- 19 Glyn Simon Close
2 Bed House | 4 m | Est. Value: £237,961
- 23 Glyn Simon Close
2 Bed House | 7 m | Est. Value: £235,691
- 17 Glyn Simon Close
3 Bed House | 7 m | Est. Value: £260,852
- 25 Glyn Simon Close
2 Bed House | 10 m | Est. Value: £233,398
- 15 Glyn Simon Close
2 Bed House | 11 m | Est. Value: £235,691
Location Comparison
Our analysis of the public data ranks 21, Glyn Simon Close, Cardiff as the 10th largest and the 11th most expensive of the 41 addresses on Glyn Simon Close, Cardiff, CF5.
Against the CF5 postcode district average, it is £40k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Danescourt|400 m away
- Llandaf|800 m away
- Fairwater|1.1 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












