HM Land Registry records the plot of land for 20, Sion Street, Pontypridd as measuring 190 m².

That makes it the 7th largest plot in the postcode, where 59 of the 62 other houses have recorded plot data.

20, Sion Street, Pontypridd has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 31 Jan 2026.

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

The most recent sale of 20, Sion Street, Pontypridd completed on 2nd December 2014 at £80,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 83.2% over the period since December 2014.

• Sold Dec 2014£80,000

Since 2007 25 properties similar to 20, Sion Street, Pontypridd have sold within a radius of 610 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 18th August 2025, was 6, The Parade, Pontypridd, CF37 4PU, a freehold house which sold for £285,000.

Read more about house prices in CF37.

• Sold Aug 2025£285,000 | 4 Bed House6, The Parade, Pontypridd, CF37 4PU6, The Parade, Pontypridd, CF37 4PU
• Sold Dec 2024£182,500 | 4 Bed HouseSunnyside, Pleasant View, Pontypridd, CF37 4DUSunnyside, Pleasant View, Pontypridd, CF37 4DU
• Sold Oct 2024£179,500 | 4 Bed House34, Bassett Street, Pontypridd, CF37 4RU34, Bassett Street, Pontypridd, CF37 4RU
• Sold Jul 2024£240,000 | 4 Bed House44, Berw Road, Pontypridd, CF37 2AA44, Berw Road, Pontypridd, CF37 2AA
• Sold Oct 2023£115,000 | 4 Bed House70, Berw Road, Pontypridd, CF37 2AB70, Berw Road, Pontypridd, CF37 2AB
• Sold Sep 2023£148,000 | 4 Bed House114, Bonvilston Road, Pontypridd, CF37 4RG114, Bonvilston Road, Pontypridd, CF37 4RG
• Sold Aug 2020£144,000 | 4 Bed House138, Coedpenmaen Road, Pontypridd, CF37 4LH138, Coedpenmaen Road, Pontypridd, CF37 4LH
• Sold Feb 2020£152,000 | 4 Bed House42, Coedpenmaen Road, Pontypridd, CF37 4LP42, Coedpenmaen Road, Pontypridd, CF37 4LP
• Sold Oct 2019£141,000 | 4 Bed House2, Thurston Road, Pontypridd, CF37 4RH2, Thurston Road, Pontypridd, CF37 4RH
• Sold Feb 2019£115,000 | 4 Bed House16, Bassett Street, Pontypridd, CF37 4RU16, Bassett Street, Pontypridd, CF37 4RU
• Sold Nov 2018£90,000 | 4 Bed House3, Ceridwen Terrace, Pontypridd, CF37 4PD3, Ceridwen Terrace, Pontypridd, CF37 4PD
• Sold Oct 2018£150,000 | 4 Bed House121, Merthyr Road, Pontypridd, CF37 4DG121, Merthyr Road, Pontypridd, CF37 4DG
• Sold Jun 2018£140,000 | 4 Bed House35, Coedpenmaen Road, Pontypridd, CF37 4LP35, Coedpenmaen Road, Pontypridd, CF37 4LP
• Sold Feb 2018£110,000 | 4 Bed House8, Foundry Place, Pontypridd, CF37 4SB8, Foundry Place, Pontypridd, CF37 4SB
• Sold Jun 2016£167,000 | 4 Bed House51, Berw Road, Pontypridd, CF37 2AA51, Berw Road, Pontypridd, CF37 2AA
• Sold Nov 2015£135,000 | 4 Bed House117, Merthyr Road, Pontypridd, CF37 4DG117, Merthyr Road, Pontypridd, CF37 4DG
• Sold May 2011£62,000 | 4 Bed House137, Bonvilston Road, Pontypridd, CF37 4RD137, Bonvilston Road, Pontypridd, CF37 4RD
• Sold Sep 2010£120,000 | 4 Bed House25, East Street, Pontypridd, CF37 4PL25, East Street, Pontypridd, CF37 4PL
• Sold Jun 2009£95,000 | 4 Bed House26, East Street, Pontypridd, CF37 4PL26, East Street, Pontypridd, CF37 4PL
• Sold Jul 2007£188,000 | 4 Bed House41, Berw Road, Pontypridd, CF37 2AA41, Berw Road, Pontypridd, CF37 2AA

Of the 65 addresses on Sion Street, Pontypridd, CF37, 20, Sion Street, Pontypridd comes out as the 2nd largest and the 7th most expensive in our analysis of the public data.

It is also £5k more expensive than the average property across the CF37 district.

• Pontypridd

  |

  900 m away
• Trefforest

  |

  1.9 km away
• Trehafod

  |

  3.1 km away

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