HM Land Registry records the plot of land for 12, Castle Street, Buckingham as measuring 1,213 m².

That makes it the largest plot in the postcode, where 9 of the 11 other houses have recorded plot data.

12, Castle Street, Buckingham has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 17 Dec 2014.

The property is connected to mains gas and has partial secondary glazing. It is heated using a boiler and radiators (mains gas).

The most recent sale of 12, Castle Street, Buckingham completed on 21st September 2001 at £675,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

• Sold Sep 2001£675,000
• Sold Jun 1996£250,000

Since 2007 899 properties have sold within 560 metres of 12, Castle Street, Buckingham, per the Land Registry and our network of Estate Agents.

The latest, on the 3rd October 2025, was 6 Moat House Flats, Elm Street, Buckingham, MK18 1EU, a leasehold flat which sold for £160,000.

Read more about house prices in MK18.

• Sold Oct 2025£160,000 | 2 Bed Flat6 Moat House Flats, Elm Street, Buckingham, MK18 1EU6 Moat House Flats, Elm Street, Buckingham, MK18 1EU
• Sold Jun 2025£170,000 | 2 Bed House4, Elm Street, Buckingham, MK18 1EY4, Elm Street, Buckingham, MK18 1EY
• Sold Feb 2025£195,000 | 2 Bed Flat1 Moat House Flats, Elm Street, Buckingham, MK18 1EU1 Moat House Flats, Elm Street, Buckingham, MK18 1EU
• Sold Dec 2024£198,000 | 2 Bed Flat8 Moat House Flats, Elm Street, Buckingham, MK18 1EU8 Moat House Flats, Elm Street, Buckingham, MK18 1EU
• Sold Mar 2024£570,000 | 5 Bed House7, Castle Street, Buckingham, MK18 1BS7, Castle Street, Buckingham, MK18 1BS
• Sold Jun 2023£280,000 | 3 Bed House17, Elm Street, Buckingham, MK18 1EX17, Elm Street, Buckingham, MK18 1EX
• Sold Dec 2022£297,000 | 3 Bed House56, Nelson Street, Buckingham, MK18 1BT56, Nelson Street, Buckingham, MK18 1BT
• Sold May 2022£316,000 | 3 Bed House7, Elm Street, Buckingham, MK18 1EY7, Elm Street, Buckingham, MK18 1EY
• Sold Nov 2017£300,000 | 3 Bed House8, Elm Street, Buckingham, MK18 1EY8, Elm Street, Buckingham, MK18 1EY
• Sold Jun 2017£250,000 | 3 Bed House58, Nelson Street, Buckingham, MK18 1BT58, Nelson Street, Buckingham, MK18 1BT
• Sold Jul 2016£155,000 | 2 Bed House5, Elm Street, Buckingham, MK18 1EY5, Elm Street, Buckingham, MK18 1EY
• Sold Nov 2015£184,000 | 2 Bed Flat2 Moat House Flats, Elm Street, Buckingham, MK18 1EU2 Moat House Flats, Elm Street, Buckingham, MK18 1EU
• Sold Jun 2015£70,000 | 4 Bed Flat1B, Bristle Hill, Buckingham, MK18 1EZ1B, Bristle Hill, Buckingham, MK18 1EZ
• Sold Aug 2014£247,500 | 3 Bed House9, Elm Street, Buckingham, MK18 1EY9, Elm Street, Buckingham, MK18 1EY
• Sold May 2012£130,000 | 2 Bed Flat4 Moat House Flats, Elm Street, Buckingham, MK18 1EU4 Moat House Flats, Elm Street, Buckingham, MK18 1EU
• Sold Apr 2010£177,000 | 3 Bed House57, Nelson Street, Buckingham, MK18 1BT57, Nelson Street, Buckingham, MK18 1BT
• Sold Jun 2009£135,000 | 3 Bed House8, Castle Street, Buckingham, MK18 1BS8, Castle Street, Buckingham, MK18 1BS
• Sold Jul 2008£85,000 | 2 Bed House61, Nelson Street, Buckingham, MK18 1BT61, Nelson Street, Buckingham, MK18 1BT
• Sold Feb 2008£195,500 | 3 Bed House9, Castle Street, Buckingham, MK18 1BS9, Castle Street, Buckingham, MK18 1BS
• Sold Jun 2007£138,000 | 2 Bed Flat7 Moat House Flats, Elm Street, Buckingham, MK18 1EU7 Moat House Flats, Elm Street, Buckingham, MK18 1EU

Of the 25 addresses on Castle Street, Buckingham, MK18, 12, Castle Street, Buckingham comes out as the largest and the most expensive in our analysis of the public data.

It is also £519k more expensive than the average property across the MK18 district.

• George Grenville Academy

  500 m away
• Buckingham Primary School

  1.0 km away
• Bourton Meadow Academy

  1.2 km away

• Buckingham School

  600 m away
• Royal Latin School

  700 m away
• Silverstone UTC

  8.7 km away

• Winslow

  |

  9.0 km away
• Wolverton

  |

  14.6 km away
• Milton Keynes Central

  |

  15.2 km away

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