Our Data Sources
21, Gilwern Crescent, Cardiff has 21 entries in the Land Registry , most recently in February 2019 and a single entry in the EPC database dated April 2013.
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, Gilwern Crescent, Cardiff would be worth £244,610, with a potential rental value of £1,278 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £216,655, with a rental value of £1,132 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Gilwern Crescent, Cardiff occupies a 321 m2 plot as recorded by HM Land Registry.
Of the 32 other houses in this postcode, 28 have recorded plot sizes, and this one ranks as the 10th largest.
Energy Efficiency
21, Gilwern Crescent, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 16 Apr 2013.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
21, Gilwern Crescent, Cardiff last changed hands on 15th February 2019, selling for £160,215. The transaction was logged as a leasehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 37.4% since February 2019.
- Sold Feb 2019£160,215
- Sold May 2005£89,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 15 sales of comparable properties within 590 metres of 21, Gilwern Crescent, Cardiff across the last 2 years.
Most recently, 111, Templeton Avenue, Cardiff, CF14 5JH, a freehold house, sold at £273,000 on the 29th October 2025.
Read more about house prices in CF14.
- Sold Oct 2025£273,000 | 3 Bed House111, Templeton Avenue, Cardiff, CF14 5JH111, Templeton Avenue, Cardiff, CF14 5JH
- Sold Aug 2024£255,000 | 3 Bed House19, Wolfs Castle Avenue, Cardiff, CF14 5JS19, Wolfs Castle Avenue, Cardiff, CF14 5JS
- Sold Jun 2023£245,000 | 3 Bed House24, Wolfs Castle Avenue, Cardiff, CF14 5JS24, Wolfs Castle Avenue, Cardiff, CF14 5JS
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 21, Gilwern Crescent, Cardiff as the 6th largest and the 46th most expensive of the 50 addresses on Gilwern Crescent, Llanishen, Cardiff, CF14.
Against the CF14 postcode district average, it is £139k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Llanishen|700 m away
- Lisvane & Thornhill|1.2 km away
- Ty Glas|1.5 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












