According to data from HM Land Registry, 21, Pentwyn Terrace, Cardiff sits on a plot of 106 m².

We have plot size data on 36 out of 40 other houses in the postcode and 21, Pentwyn Terrace, Cardiff sits on the 34th largest plot.

21, Pentwyn Terrace, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 30 Jun 2026.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 21, Pentwyn Terrace, Cardiff was last sold on 26th September 2014 for £145,000 and was recorded as a freehold house.

The property has had 3 sales since 1995.

Since September 2014, the market for similar properties has risen by 16.7%.

• Sold Sep 2014£145,000
• Sold Aug 2007£80,000
• Sold Nov 2002£75,000

According to the Land Registry and our network of Estate Agents, there have been 37 sales of properties similar to 21, Pentwyn Terrace, Cardiff within a radius of 2.1 kilometres since 2007.

The most recent example is 8, Pentwyn Terrace, Cardiff, CF3 2TW, a freehold house which sold for £233,000 on the 18th December 2025.

Read more about house prices in CF3.

• Sold Dec 2025£233,000 | 3 Bed House8, Pentwyn Terrace, Cardiff, CF3 2TW8, Pentwyn Terrace, Cardiff, CF3 2TW
• Sold Dec 2025£210,000 | 4 Bed House12, Saffron Drive, Cardiff, CF3 0NH12, Saffron Drive, Cardiff, CF3 0NH
• Sold Jun 2025£273,000 | 3 Bed House13, Brython Drive, Cardiff, CF3 0LR13, Brython Drive, Cardiff, CF3 0LR
• Sold Apr 2025£265,000 | 3 Bed House14, Eugene Close, Cardiff, CF3 0LZ14, Eugene Close, Cardiff, CF3 0LZ
• Sold Apr 2025£240,000 | 3 Bed House20, Pentwyn Terrace, Cardiff, CF3 2TW20, Pentwyn Terrace, Cardiff, CF3 2TW
• Sold Mar 2025£272,500 | 3 Bed House3, St. Peters Crescent, Cardiff, CF3 2TR3, St. Peters Crescent, Cardiff, CF3 2TR
• Sold Oct 2024£215,000 | 3 Bed House14, Pentwyn Terrace, Cardiff, CF3 2TW14, Pentwyn Terrace, Cardiff, CF3 2TW
• Sold Aug 2024£305,000 | 3 Bed House34, Glenrise Close, Cardiff, CF3 0AS34, Glenrise Close, Cardiff, CF3 0AS
• Sold Apr 2024£265,000 | 3 Bed House64, Brython Drive, Cardiff, CF3 0LR64, Brython Drive, Cardiff, CF3 0LR
• Sold Oct 2023£308,000 | 3 Bed House25, Swanage Close, Cardiff, CF3 0LS25, Swanage Close, Cardiff, CF3 0LS
• Sold Jan 2022£231,500 | 3 Bed HouseElmfield, Pentwyn Terrace, Cardiff, CF3 2TWElmfield, Pentwyn Terrace, Cardiff, CF3 2TW
• Sold Jan 2022£160,000 | 4 Bed House42, Pentwyn Terrace, Cardiff, CF3 2UL42, Pentwyn Terrace, Cardiff, CF3 2UL
• Sold Jul 2021£205,000 | 4 Bed House4, St. Peters Crescent, Cardiff, CF3 2TR4, St. Peters Crescent, Cardiff, CF3 2TR
• Sold Dec 2020£237,500 | 3 Bed House12, Marysfield Close, Cardiff, CF3 2TY12, Marysfield Close, Cardiff, CF3 2TY
• Sold Aug 2020£230,000 | 3 Bed HouseOakfield, Pentwyn Terrace, Cardiff, CF3 2TWOakfield, Pentwyn Terrace, Cardiff, CF3 2TW
• Sold Jul 2020£200,000 | 3 Bed House17, Marysfield Close, Cardiff, CF3 2TY17, Marysfield Close, Cardiff, CF3 2TY
• Sold Mar 2020£185,000 | 3 Bed House131, Marshfield Road, Cardiff, CF3 2TT131, Marshfield Road, Cardiff, CF3 2TT
• Sold May 2018£192,500 | 4 Bed House26, Marysfield Close, Cardiff, CF3 2TY26, Marysfield Close, Cardiff, CF3 2TY
• Sold May 2017£197,500 | 3 Bed House180, Marshfield Road, Cardiff, CF3 2UH180, Marshfield Road, Cardiff, CF3 2UH
• Sold Jul 2007£150,000 | 3 Bed House24, Marysfield Close, Cardiff, CF3 2TY24, Marysfield Close, Cardiff, CF3 2TY

Pentwyn Terrace, Marshfield, Cardiff, CF3 has a total of 81 addresses. According to our analysis of all the public data, 21, Pentwyn Terrace, Cardiff is the 10th largest and the 6th most expensive property on the street.

When compared to the postcode district it is £4k more expensive than the average property in CF3.

• Pye Corner

  |

  5.8 km away
• Rogerstone

  |

  7.2 km away
• Newport (South Wales)

  |

  7.9 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.