18, The Castle, Horsham occupies a 1,044 m² plot as recorded by HM Land Registry.

Of the 20 other houses in this postcode, 19 have recorded plot sizes, and this one ranks as the 3rd largest.

18, The Castle, Horsham has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 22 Jan 2014.

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

18, The Castle, Horsham last changed hands on 18th August 1995, selling for £190,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

• Sold Aug 1995£190,000

Land Registry records and our Estate Agent network show 65 sales of comparable properties within 820 metres of 18, The Castle, Horsham since 2015.

Most recently, 6, Quarterbrass Farm Road, Horsham, RH12 5EY, a freehold house, sold at £290,000 on the 29th April 2026.

Read more about house prices in RH12.

• Sold Apr 2026£290,000 | 5 Bed House6, Quarterbrass Farm Road, Horsham, RH12 5EY6, Quarterbrass Farm Road, Horsham, RH12 5EY
• Sold Apr 2026£860,000 | 4 Bed House6, Bloor Close, Horsham, RH12 5EX6, Bloor Close, Horsham, RH12 5EX
• Sold Nov 2025£885,000 | 4 Bed House9, Winterbourne, Horsham, RH12 5JW9, Winterbourne, Horsham, RH12 5JW
• Sold Oct 2025£895,000 | 5 Bed House5, Hatchlands, Horsham, RH12 5JX5, Hatchlands, Horsham, RH12 5JX
• Sold Oct 2025£1,067,000 | 5 Bed House11, Winterbourne, Horsham, RH12 5JW11, Winterbourne, Horsham, RH12 5JW
• Sold Jul 2025£900,000 | 4 Bed House7, The Castle, Horsham, RH12 5PX7, The Castle, Horsham, RH12 5PX
• Sold Jun 2025£915,000 | 5 Bed House3, The Castle, Horsham, RH12 5PX3, The Castle, Horsham, RH12 5PX
• Sold Sep 2024£810,000 | 5 Bed House8, Uppark Gardens, Horsham, RH12 5JN8, Uppark Gardens, Horsham, RH12 5JN
• Sold Sep 2022£938,000 | 5 Bed House5, Petworth Drive, Horsham, RH12 5JH5, Petworth Drive, Horsham, RH12 5JH
• Sold Jun 2022£860,000 | 5 Bed House31, Winterbourne, Horsham, RH12 5JW31, Winterbourne, Horsham, RH12 5JW
• Sold Oct 2021£800,000 | 5 Bed House20, Dutchells Copse, Horsham, RH12 5PD20, Dutchells Copse, Horsham, RH12 5PD
• Sold Sep 2021£1,000,000 | 5 Bed House1, The Castle, Horsham, RH12 5PX1, The Castle, Horsham, RH12 5PX
• Sold Feb 2021£790,000 | 5 Bed House1, Tennyson Close, Horsham, RH12 5PN1, Tennyson Close, Horsham, RH12 5PN
• Sold Feb 2021£762,500 | 5 Bed House20, Tennyson Close, Horsham, RH12 5PN20, Tennyson Close, Horsham, RH12 5PN
• Sold Jan 2021£790,000 | 5 Bed House8, Tennyson Close, Horsham, RH12 5PN8, Tennyson Close, Horsham, RH12 5PN
• Sold Dec 2020£758,000 | 5 Bed House6, Dutchells Copse, Horsham, RH12 5PD6, Dutchells Copse, Horsham, RH12 5PD
• Sold Aug 2019£740,000 | 4 Bed House6, The Castle, Horsham, RH12 5PX6, The Castle, Horsham, RH12 5PX
• Sold Jul 2017£655,000 | 5 Bed House22, Tennyson Close, Horsham, RH12 5PN22, Tennyson Close, Horsham, RH12 5PN
• Sold Jul 2016£660,000 | 4 Bed House8, The Castle, Horsham, RH12 5PX8, The Castle, Horsham, RH12 5PX
• Sold Dec 2015£645,000 | 5 Bed House9, Tennyson Close, Horsham, RH12 5PN9, Tennyson Close, Horsham, RH12 5PN

Our analysis of the public data ranks 18, The Castle, Horsham as the 11th largest and the 9th most expensive of the 20 addresses on The Castle, Horsham, RH12.

Against the RH12 postcode district average, it is £490k more expensive than the typical property.

• Holbrook Primary School

  300 m away
• All Saints CofE Primary School, Horsham

  800 m away
• North Heath Community Primary School

  1.1 km away

• Millais School

  2.6 km away
• The Forest School

  3.1 km away
• Tanbridge House School

  3.7 km away

• Littlehaven

  |

  900 m away
• Warnham

  |

  1.4 km away
• Horsham

  |

  2.4 km away

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