21, Harlech Road, Cardiff has an Energy Performance Rating (EPC) of D. 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 a boiler and radiators (mains gas).

Since 2007 24 properties similar to 21, Harlech Road, Cardiff have sold within a radius of 670 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 1st December 2025, was 20, Harlech Road, Cardiff, CF3 3HS, a freehold house which sold for £195,000.

Read more about house prices in CF3.

• Sold Dec 2025£195,000 | 3 Bed House20, Harlech Road, Cardiff, CF3 3HS20, Harlech Road, Cardiff, CF3 3HS
• Sold Jul 2025£108,000 | 3 Bed House18, Harlech Road, Cardiff, CF3 3HS18, Harlech Road, Cardiff, CF3 3HS
• Sold Jul 2024£215,000 | 3 Bed House119, Wentloog Road, Cardiff, CF3 3HE119, Wentloog Road, Cardiff, CF3 3HE
• Sold Apr 2024£187,500 | 3 Bed House3, Langland Road, Cardiff, CF3 3HU3, Langland Road, Cardiff, CF3 3HU
• Sold Dec 2023£130,000 | 3 Bed House22, Harlech Road, Cardiff, CF3 3HS22, Harlech Road, Cardiff, CF3 3HS
• Sold Sep 2023£162,000 | 3 Bed House54, Barmouth Road, Cardiff, CF3 3LA54, Barmouth Road, Cardiff, CF3 3LA
• Sold Jul 2023£200,000 | 3 Bed House11, Laugharne Avenue, Cardiff, CF3 3HZ11, Laugharne Avenue, Cardiff, CF3 3HZ
• Sold Feb 2023£175,000 | 3 Bed House1 Pwllmawr Court, Wentloog Road, Cardiff, CF3 3EP1 Pwllmawr Court, Wentloog Road, Cardiff, CF3 3EP
• Sold Jan 2022£153,000 | 3 Bed House27, Manorbier Crescent, Cardiff, CF3 3ND27, Manorbier Crescent, Cardiff, CF3 3ND
• Sold Dec 2020£145,000 | 3 Bed House9, Harlech Road, Cardiff, CF3 3HS9, Harlech Road, Cardiff, CF3 3HS
• Sold Mar 2020£164,995 | 3 Bed House154, Greenway Road, Cardiff, CF3 3PN154, Greenway Road, Cardiff, CF3 3PN
• Sold Dec 2019£89,000 | 3 Bed House1, Fontygary Road, Cardiff, CF3 3HR1, Fontygary Road, Cardiff, CF3 3HR
• Sold Jul 2018£129,000 | 3 Bed House10, Laugharne Avenue, Cardiff, CF3 3HZ10, Laugharne Avenue, Cardiff, CF3 3HZ
• Sold Jul 2017£105,000 | 3 Bed House3, Fontygary Road, Cardiff, CF3 3HR3, Fontygary Road, Cardiff, CF3 3HR
• Sold Mar 2017£112,000 | 3 Bed House32, Harlech Road, Cardiff, CF3 3HS32, Harlech Road, Cardiff, CF3 3HS
• Sold Oct 2016£73,500 | 3 Bed House42, Goodwick Road, Cardiff, CF3 3HX42, Goodwick Road, Cardiff, CF3 3HX
• Sold May 2014£144,000 | 3 Bed House35, Goodwick Road, Cardiff, CF3 3HX35, Goodwick Road, Cardiff, CF3 3HX
• Sold Aug 2008£77,000 | 3 Bed House12, Harlech Road, Cardiff, CF3 3HS12, Harlech Road, Cardiff, CF3 3HS
• Sold Aug 2007£90,000 | 3 Bed House5, Fontygary Road, Cardiff, CF3 3HR5, Fontygary Road, Cardiff, CF3 3HR
• Sold May 2007£89,000 | 3 Bed House6, Langland Road, Cardiff, CF3 3HU6, Langland Road, Cardiff, CF3 3HU

Of the 48 addresses on Harlech Road, Rumney, Cardiff, CF3, 21, Harlech Road, Cardiff comes out as the 40th largest and the 41st most expensive in our analysis of the public data.

It is also £88k less expensive than the average property across the CF3 district.

• Cardiff Queen Street

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  4.3 km away
• Heath Low Level

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  4.3 km away
• Heath High Level

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  4.3 km away

The flood risk here is rated Very Low, based on Environment Agency data.