49, Castle Street, Boston occupies a 95 m² plot as recorded by HM Land Registry.

Of the 40 other houses in this postcode, 39 have recorded plot sizes, and this one ranks as the 34th largest.

49, Castle Street, Boston has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 05 Nov 2021.

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

49, Castle Street, Boston last changed hands on 20th October 2025, selling for £96,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has risen by 22.3% since October 2025.

Land Registry records and our Estate Agent network show 74 sales of comparable properties within 520 metres of 49, Castle Street, Boston since 2011.

Most recently, 90, Carlton Road, Boston, PE21 8PQ, a freehold house, sold at £100,000 on the 26th February 2026.

Read more about house prices in PE21.

• Sold Feb 2026£100,000 | 2 Bed House90, Carlton Road, Boston, PE21 8PQ90, Carlton Road, Boston, PE21 8PQ
• Sold Jan 2026£114,950 | 3 Bed House44, Argyle Street, Boston, PE21 8PH44, Argyle Street, Boston, PE21 8PH
• Sold Jan 2026£100,000 | 3 Bed House13, Granville Street, Boston, PE21 8PG13, Granville Street, Boston, PE21 8PG
• Sold Nov 2025£85,000 | 3 Bed House55, Argyle Street, Boston, PE21 8PJ55, Argyle Street, Boston, PE21 8PJ
• Sold Aug 2025£128,000 | 3 Bed House38, Argyle Street, Boston, PE21 8PH38, Argyle Street, Boston, PE21 8PH
• Sold Jul 2025£85,000 | 3 Bed House62, Fydell Street, Boston, PE21 8LF62, Fydell Street, Boston, PE21 8LF
• Sold Feb 2025£108,000 | 3 Bed House19, Orchard Street, Boston, PE21 8PL19, Orchard Street, Boston, PE21 8PL
• Sold Sep 2024£95,000 | 3 Bed House49, Argyle Street, Boston, PE21 8PJ49, Argyle Street, Boston, PE21 8PJ
• Sold Jun 2024£130,000 | 3 Bed House19, Granville Street, Boston, PE21 8PG19, Granville Street, Boston, PE21 8PG
• Sold Nov 2023£80,000 | 3 Bed House1, Granville Street, Boston, PE21 8PG1, Granville Street, Boston, PE21 8PG
• Sold Dec 2022£96,550 | 3 Bed House47, Castle Street, Boston, PE21 8PR47, Castle Street, Boston, PE21 8PR
• Sold Oct 2022£110,000 | 3 Bed House35, Fydell Street, Boston, PE21 8LG35, Fydell Street, Boston, PE21 8LG
• Sold Oct 2022£60,000 | 3 Bed House51, Castle Street, Boston, PE21 8PR51, Castle Street, Boston, PE21 8PR
• Sold Jan 2022£80,000 | 3 Bed House23, Granville Street, Boston, PE21 8PG23, Granville Street, Boston, PE21 8PG
• Sold Sep 2021£97,000 | 3 Bed House70, Fydell Street, Boston, PE21 8LF70, Fydell Street, Boston, PE21 8LF
• Sold Apr 2018£70,000 | 3 Bed House61, Castle Street, Boston, PE21 8PR61, Castle Street, Boston, PE21 8PR
• Sold Mar 2018£86,000 | 3 Bed House6, Orchard Street, Boston, PE21 8PL6, Orchard Street, Boston, PE21 8PL
• Sold Jul 2016£85,000 | 3 Bed House45, Castle Street, Boston, PE21 8PR45, Castle Street, Boston, PE21 8PR
• Sold Jun 2015£86,000 | 3 Bed House53, Castle Street, Boston, PE21 8PR53, Castle Street, Boston, PE21 8PR
• Sold Dec 2011£64,500 | 3 Bed House55, Castle Street, Boston, PE21 8PR55, Castle Street, Boston, PE21 8PR

Our analysis of the public data ranks 49, Castle Street, Boston as the 60th largest and the 84th most expensive of the 97 addresses on Castle Street, Boston, PE21.

Against the PE21 postcode district average, it is £68k less expensive than the typical property.

• Park Academy

  500 m away
• Carlton Road Academy

  500 m away
• Staniland Academy

  1.1 km away

• Haven High Academy

  800 m away
• The Boston Grammar School

  1.4 km away
• Boston High School

  1.7 km away

• Boston

  |

  700 m away
• Hubberts Bridge

  |

  5.1 km away
• Swineshead

  |

  10.3 km away

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