Castell Isaf, Newtown occupies a 17,292 m² plot as recorded by HM Land Registry.

Of the 6 other houses in this postcode, 5 have recorded plot sizes, and this one ranks as the 2nd largest.

Castell Isaf, Newtown has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Nov 2015.

The property is not connected to mains gas and has single glazed windows. It is heated using a boiler and radiators (oil).

Land Registry records and our Estate Agent network show 78 sales of comparable properties within 7.9 kilometres of Castell Isaf, Newtown since 2008.

Most recently, 22, Cae Melyn, Newtown, SY16 3EF, a freehold house, sold at £283,000 on the 16th May 2025.

Read more about house prices in SY16.

• Sold May 2025£283,000 | 3 Bed House22, Cae Melyn, Newtown, SY16 3EF22, Cae Melyn, Newtown, SY16 3EF
• Sold May 2025£250,000 | 4 Bed HouseLlwyn Celyn, Newtown, SY16 3PFLlwyn Celyn, Newtown, SY16 3PF
• Sold Jul 2024£275,000 | 4 Bed House26, Cae Melyn, Newtown, SY16 3EF26, Cae Melyn, Newtown, SY16 3EF
• Sold Sep 2023£300,000 | 3 Bed HouseLlais Yr Awel, Newtown, SY16 3JBLlais Yr Awel, Newtown, SY16 3JB
• Sold Feb 2023£395,000 | 3 Bed HouseNew House, Newtown, SY16 3BXNew House, Newtown, SY16 3BX
• Sold Jul 2022£303,250 | 4 Bed House37, Tan Y Llan, Newtown, SY16 3HA37, Tan Y Llan, Newtown, SY16 3HA
• Sold Aug 2021£245,000 | 3 Bed House1, Penymaes, Newtown, SY16 3BQ1, Penymaes, Newtown, SY16 3BQ
• Sold Jun 2021£219,950 | 4 Bed House15, Tan Y Llan, Newtown, SY16 3HA15, Tan Y Llan, Newtown, SY16 3HA
• Sold Apr 2021£220,000 | 3 Bed House54, Parc Hafod, Newtown, SY16 3EQ54, Parc Hafod, Newtown, SY16 3EQ
• Sold Sep 2019£210,000 | 4 Bed House14, Llys Melyn, Newtown, SY16 3EE14, Llys Melyn, Newtown, SY16 3EE
• Sold Feb 2018£280,000 | 4 Bed HouseNew House, Newtown, SY16 3PYNew House, Newtown, SY16 3PY
• Sold Jan 2018£195,000 | 4 Bed House20, Llys Melyn, Newtown, SY16 3EE20, Llys Melyn, Newtown, SY16 3EE
• Sold Jun 2017£218,000 | 3 Bed HouseNantwyllt, Welshpool, SY21 0AYNantwyllt, Welshpool, SY21 0AY
• Sold May 2015£175,000 | 3 Bed HouseCaersalem, Welshpool, SY21 0AGCaersalem, Welshpool, SY21 0AG
• Sold Aug 2014£146,000 | 3 Bed House3, Penymaes, Newtown, SY16 3BQ3, Penymaes, Newtown, SY16 3BQ
• Sold Apr 2014£164,000 | 3 Bed HouseSchool House, Newtown, SY16 3EHSchool House, Newtown, SY16 3EH
• Sold Feb 2013£152,500 | 3 Bed House9, Cae Melyn, Newtown, SY16 3EF9, Cae Melyn, Newtown, SY16 3EF
• Sold Nov 2011£169,950 | 3 Bed HouseCartref, Newtown, SY16 3HXCartref, Newtown, SY16 3HX
• Sold Mar 2009£170,000 | 3 Bed House8, Cae Melyn, Newtown, SY16 3EF8, Cae Melyn, Newtown, SY16 3EF
• Sold Apr 2008£163,000 | 3 Bed House5, Treganol, Newtown, SY16 3DW5, Treganol, Newtown, SY16 3DW

Our analysis of the public data ranks Castell Isaf, Newtown as the 56th largest and the 40th most expensive of the 92 addresses on Adfa, Newtown, SY16.

Against the SY16 postcode district average, it is £72k more expensive than the typical property.

• Caersws

  |

  8.0 km away
• Newtown (Powys)

  |

  10.0 km away
• Welshpool

  |

  19.2 km away

Environment Agency data suggests this area has a Very Low risk of flooding.