Our Data Sources
21, Theobald Road, Cardiff has no recent1 records in the Land Registry and a single entry in the EPC database dated November 2018.
We combine this information with public data 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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 21, Theobald Road, Cardiff would be worth £384,859, with a potential rental value of £1,598 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £340,875, with a rental value of £1,416 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Theobald Road, Cardiff occupies a 133 m2 plot as recorded by HM Land Registry.
Of the 31 other houses in this postcode, 30 have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
21, Theobald Road, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 19 Nov 2018.
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
21, Theobald Road, Cardiff last changed hands on 1st December 2000, selling for £83,500. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
- Sold Dec 2000£83,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 292 sales of comparable properties within 380 metres of 21, Theobald Road, Cardiff since 2021.
Most recently, 17, Theobald Road, Cardiff, CF5 1LP, a freehold house, sold at £370,000 on the 14th November 2025.
Read more about house prices in CF5.
- Sold Nov 2025£370,000 | 4 Bed House17, Theobald Road, Cardiff, CF5 1LP17, Theobald Road, Cardiff, CF5 1LP
- Sold Oct 2025£320,000 | 4 Bed House61, Beda Road, Cardiff, CF5 1LX61, Beda Road, Cardiff, CF5 1LX
- Sold Aug 2025£345,000 | 4 Bed House17, Westmoreland Street, Cardiff, CF5 1LU17, Westmoreland Street, Cardiff, CF5 1LU
- Sold Jul 2025£400,000 | 4 Bed House39, Hanover Street, Cardiff, CF5 1LS39, Hanover Street, Cardiff, CF5 1LS
- Sold Jun 2025£220,000 | 4 Bed House234, Cowbridge Road East, Cardiff, CF5 1GY234, Cowbridge Road East, Cardiff, CF5 1GY
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 £304,851, ranging from £147,352 to £385,444.
- 25 Theobald Road
4 Bed House | 10 m | Est. Value: £375,033
- 39 Hanover Street
4 Bed House | 14 m | Est. Value: £352,016
- 37 Hanover Street
4 Bed House | 18 m | Est. Value: £355,340
- 35 Hanover Street
4 Bed House | 22 m | Est. Value: £353,682
- 17 Theobald Road
4 Bed House | 24 m | Est. Value: £385,444
Location Comparison
Our analysis of the public data ranks 21, Theobald Road, Cardiff as the 42nd largest and the 33rd most expensive of the 92 addresses on Theobald Road, Cardiff, CF5.
Against the CF5 postcode district average, it is £73k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Ninian Park|600 m away
- Waun-Gron Park|1.8 km away
- Grangetown (Cardiff)|1.9 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.
