20 Merthyr Street, Cathays, Cardiff, CF24 4JJ is a freehold terraced property built between 1930-1949. The property offers approximately 861 square feet of living space. In this location, properties of similar size usually have three bedrooms.

The estimated current market value of the property is £241,235 , which equates to approximately £280 per square foot. It was last sold on 29 Aug 2025 for £241,000. Since then, the value has increased by £235, representing a 0.1% increase, or approximately 0.3% per year.

The current estimated value of £241,235 is:

  • 15.5% lower than the average property price on Merthyr Street
  • 6.1% higher than the average in the CF24 4JJ postcode area
  • and 28.4% lower than the average price for Cardiff as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded as owner-occupied both times. This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 15 March 2023, the property was recorded as owner-occupied.

View sold house prices in CF24 4JJ

Building approximate location

About Property

Type
Terraced House
Built
1930-1949
Interior Size
861 sq ft
Tenure
Freehold
Price (estimate)
£241,235
Price Per sq ft (estimate)
£280
Bedroom Count (estimate)
3 bedrooms

EPC Summary

20 Merthyr Street, Cathays, Cardiff, CF24 4JJ has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 15 Mar 2023.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 23 Feb 2010, when the property was rated E. Since then, the rating has improved to D, with the energy efficiency score increasing by 33.3%.

Since the previous assessment, several changes were observed:

  • The wall construction or insulation changed from solid brick, as built, no insulation (assumed) to granite or whinstone, as built, no insulation (assumed), with no change in energy efficiency (very poor).
  • The lighting was updated from low energy lighting in 50% of fixed outlets to low energy lighting in all fixed outlets, with efficiency improving from good to very good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, no insulation (assumed)
Very Poor
Walls
Granite or whinstone, as built, no insulation (assumed)
Very Poor
Windows
Fully double glazed
Good
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to CF24 4JJ

9 th / 19
Price Rank
6% higher than average
7 th / 17
Size Rank
12% bigger than average
12 th / 17
Price Per Sq FT Rank
5% lower than average

Compared to other properties in CF24 4JJ , this house's estimated value ranks 9th out of 19. Based on price per square foot, it ranks 12th out of 17 properties. This indicates a lower price per square foot than most, suggesting good value for the space offered. In terms of size, this home ranks 7th out of 17 properties in its postcode area.

Sale History

Today
£241,235
streetscan.co.uk estimate
+0 %
29 Aug 2025
£241,000
Leasehold
+1.7 %
7 Mar 2024
£237,000
Leasehold
+31.7 %
14 Jun 2018
£180,000
Leasehold
+20 %
20 Aug 2010
£150,000
Leasehold
-2.6 %
2 Feb 2007
£154,000
Leasehold
+124.8 %
8 Apr 2002
£68,500
Leasehold
+56.6 %
15 Jun 1996
£43,750
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 5
size: 872 sq ft
sale price: £255,000
sale date: 21 Feb 2024
rooms: 4
size: 786 sq ft
sale price: £227,500
sale date: 26 May 2023
rooms: 4
size: 883 sq ft
sale price: £222,000
sale date: 11 Aug 2022
rooms: 4
size: 980 sq ft
sale price: £223,000
sale date: 4 Jun 2021
rooms: 4
size: 743 sq ft
sale price: £158,000
sale date: 27 May 2016

Data Sources

The property at 20 Merthyr Street, Cathays, Cardiff, CF24 4JJ appears seven times in the Land Registry records, with the latest transaction recorded on 29 Aug 2025. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 15 Mar 2023. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.