HM Land Registry records the plot of land for 3, Castle Square, Merthyr Tydfil as measuring 127 m².

That makes it the 4th largest plot in the postcode, where 21 of the 26 other houses have recorded plot data.

The most recent sale of 3, Castle Square, Merthyr Tydfil completed on 5th August 2010 at £70,000 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 68.9% over the period since August 2010.

• Sold Aug 2010£70,000

Since 2010 78 properties similar to 3, Castle Square, Merthyr Tydfil have sold within a radius of 720 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 27th August 2025, was 2, Dane Street, Merthyr Tydfil, CF47 8SE, a freehold house which sold for £136,000.

Read more about house prices in CF47.

• Sold Aug 2025£136,000 | 3 Bed House2, Dane Street, Merthyr Tydfil, CF47 8SE2, Dane Street, Merthyr Tydfil, CF47 8SE
• Sold Jul 2025£145,000 | 3 Bed House10, Norman Terrace, Merthyr Tydfil, CF47 8SD10, Norman Terrace, Merthyr Tydfil, CF47 8SD
• Sold Jan 2025£130,000 | 3 Bed House4, Tydfil Terrace, Merthyr Tydfil, CF47 8SY4, Tydfil Terrace, Merthyr Tydfil, CF47 8SY
• Sold Oct 2024£135,000 | 3 Bed House24, Stuart Street, Merthyr Tydfil, CF47 8SA24, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Dec 2023£126,000 | 3 Bed House7, Stuart Street, Merthyr Tydfil, CF47 8SA7, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Sep 2023£125,000 | 3 Bed House7, Tydfil Terrace, Merthyr Tydfil, CF47 8SY7, Tydfil Terrace, Merthyr Tydfil, CF47 8SY
• Sold Aug 2023£210,000 | 3 Bed House3, Norman Terrace, Merthyr Tydfil, CF47 8SD3, Norman Terrace, Merthyr Tydfil, CF47 8SD
• Sold Jul 2023£167,500 | 3 Bed House13, Hanover Street, Merthyr Tydfil, CF47 8SW13, Hanover Street, Merthyr Tydfil, CF47 8SW
• Sold Feb 2023£115,000 | 3 Bed House8, Stuart Street, Merthyr Tydfil, CF47 8SA8, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Oct 2022£50,000 | 3 Bed House14, Williamstown, Merthyr Tydfil, CF47 8PD14, Williamstown, Merthyr Tydfil, CF47 8PD
• Sold Jul 2022£110,000 | 3 Bed House16, Well Street, Merthyr Tydfil, CF47 8SU16, Well Street, Merthyr Tydfil, CF47 8SU
• Sold Nov 2021£122,500 | 3 Bed House27, Stuart Street, Merthyr Tydfil, CF47 8SA27, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Nov 2020£89,000 | 3 Bed House20, Grawen Terrace, Merthyr Tydfil, CF47 8TH20, Grawen Terrace, Merthyr Tydfil, CF47 8TH
• Sold Mar 2020£76,000 | 3 Bed House33, Stuart Street, Merthyr Tydfil, CF47 8SA33, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Dec 2019£94,000 | 3 Bed House6, Church Street, Merthyr Tydfil, CF47 8TA6, Church Street, Merthyr Tydfil, CF47 8TA
• Sold Jan 2019£60,000 | 3 Bed House8, Church Street, Merthyr Tydfil, CF47 8TA8, Church Street, Merthyr Tydfil, CF47 8TA
• Sold Oct 2018£87,000 | 3 Bed House16, Stuart Street, Merthyr Tydfil, CF47 8SA16, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Nov 2017£109,000 | 3 Bed House30, Stuart Street, Merthyr Tydfil, CF47 8SA30, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Oct 2017£96,000 | 3 Bed House14, Stuart Street, Merthyr Tydfil, CF47 8SA14, Stuart Street, Merthyr Tydfil, CF47 8SA
• Sold Dec 2010£53,000 | 3 Bed House9, Grawen Terrace, Merthyr Tydfil, CF47 8TH9, Grawen Terrace, Merthyr Tydfil, CF47 8TH

Of the 26 addresses on Castle Square, Merthyr Tydfil, CF47, 3, Castle Square, Merthyr Tydfil comes out as the largest and the 2nd most expensive in our analysis of the public data.

It is also £21k less expensive than the average property across the CF47 district.

• Merthyr Tydfil

  |

  1.1 km away
• Pentre-Bach

  |

  3.5 km away
• Troed-y-rhiw

  |

  5.3 km away

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