HM Land Registry records the plot of land for 21, Castle Street, Brighton as measuring 63 m².

That makes it the 7th largest plot in the postcode, where 20 of the 27 other houses have recorded plot data.

21, Castle Street, Brighton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 13 Mar 2019.

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

The most recent sale of 21, Castle Street, Brighton completed on 17th April 2015 at £445,000 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 36.7% over the period since April 2015.

• Sold Apr 2015£445,000

Since 2007 10 properties similar to 21, Castle Street, Brighton have sold within a radius of 220 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 7th July 2025, was 28, Hampton Place, Brighton, BN1 3DD, a freehold house which sold for £740,000.

Read more about house prices in BN1.

• Sold Jul 2025£740,000 | 5 Bed House28, Hampton Place, Brighton, BN1 3DD28, Hampton Place, Brighton, BN1 3DD
• Sold Jan 2023£1,030,000 | 4 Bed House14, Hampton Place, Brighton, BN1 3DD14, Hampton Place, Brighton, BN1 3DD
• Sold Feb 2022£675,000 | 4 Bed House4, Sillwood Street, Brighton, BN1 2LG4, Sillwood Street, Brighton, BN1 2LG
• Sold Jun 2021£715,000 | 4 Bed House5, Sillwood Road, Brighton, BN1 2LF5, Sillwood Road, Brighton, BN1 2LF
• Sold Sep 2017£764,000 | 4 Bed House14, Stone Street, Brighton, BN1 2HB14, Stone Street, Brighton, BN1 2HB
• Sold May 2017£675,000 | 4 Bed House19, Russell Square, Brighton, BN1 2EE19, Russell Square, Brighton, BN1 2EE
• Sold Jul 2015£620,000 | 4 Bed House25, Russell Square, Brighton, BN1 2EE25, Russell Square, Brighton, BN1 2EE
• Sold Dec 2014£725,000 | 4 Bed House20, Hampton Place, Brighton, BN1 3DD20, Hampton Place, Brighton, BN1 3DD
• Sold Jan 2010£495,000 | 4 Bed House26, Hampton Place, Brighton, BN1 3DD26, Hampton Place, Brighton, BN1 3DD
• Sold Oct 2007£610,000 | 5 Bed House18, Sillwood Road, Brighton, BN1 2LF18, Sillwood Road, Brighton, BN1 2LF

Over the past 2 years our Estate Agent network has recorded 1 let within 220 metres of 21, Castle Street, Brighton.

The latest, in May 2025, was Apartment 24, Mitre House 149, Western Road, Brighton, BN1 2AJ, a leasehold flat let by Syrous Fallahi - KW.

• 
  Let May 2025£ Undisclosed | 1 Bed FlatApartment 24, Mitre House 149, Western Road, Brighton, BN1 2AJApartment 24, Mitre House 149, Western Road, Brighton, BN1 2AJ

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Of the 76 addresses on Castle Street, Brighton, BN1, 21, Castle Street, Brighton comes out as the largest and the most expensive in our analysis of the public data.

It is also £242k more expensive than the average property across the BN1 district.

• St Mary Magdalen Catholic Primary School

  100 m away
• St Paul's CofE Primary School

  400 m away
• Middle Street Primary School

  600 m away

• Cardinal Newman Catholic School

  1.6 km away
• Hove Park School and Sixth Form Centre

  2.8 km away
• Dorothy Stringer School

  2.8 km away

• Brighton

  |

  800 m away
• London Road (Brighton)

  |

  1.7 km away
• Hove

  |

  1.9 km away

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