17, Gloucester Avenue, Sidcup occupies a 307 m² plot as recorded by HM Land Registry.

Of the 37 other houses in this postcode, 35 have recorded plot sizes, and this one ranks as the 9th largest.

17, Gloucester Avenue, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 Apr 2011.

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

17, Gloucester Avenue, Sidcup last changed hands on 22nd November 2011, selling for £407,500. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 69.9% since November 2011.

• Sold Nov 2011£407,500
• Sold Jun 2001£218,000

Land Registry records and our Estate Agent network show 203 sales of comparable properties within 540 metres of 17, Gloucester Avenue, Sidcup since 2015.

Most recently, 55, Gloucester Avenue, Sidcup, DA15 7LP, a freehold house, sold at £760,500 on the 21st January 2026.

Read more about house prices in DA15.

• Sold Jan 2026£760,500 | 4 Bed House55, Gloucester Avenue, Sidcup, DA15 7LP55, Gloucester Avenue, Sidcup, DA15 7LP
• Sold Oct 2025£715,000 | 4 Bed House28, Gloucester Avenue, Sidcup, DA15 7LL28, Gloucester Avenue, Sidcup, DA15 7LL
• Sold Sep 2025£650,000 | 4 Bed House16, Little Birches, Sidcup, DA15 7LW16, Little Birches, Sidcup, DA15 7LW
• Sold Jul 2025£725,000 | 4 Bed House135, Old Farm Avenue, Sidcup, DA15 8AJ135, Old Farm Avenue, Sidcup, DA15 8AJ
• Sold Feb 2025£720,000 | 4 Bed House19, Gloucester Avenue, Sidcup, DA15 7LP19, Gloucester Avenue, Sidcup, DA15 7LP
• Sold Nov 2024£580,000 | 4 Bed House15, Little Birches, Sidcup, DA15 7LN15, Little Birches, Sidcup, DA15 7LN
• Sold Aug 2024£860,000 | 4 Bed House131, Old Farm Avenue, Sidcup, DA15 8AJ131, Old Farm Avenue, Sidcup, DA15 8AJ
• Sold Jan 2024£690,000 | 4 Bed House36, Gloucester Avenue, Sidcup, DA15 7LL36, Gloucester Avenue, Sidcup, DA15 7LL
• Sold Nov 2023£600,000 | 4 Bed House35, York Avenue, Sidcup, DA15 7LJ35, York Avenue, Sidcup, DA15 7LJ
• Sold Aug 2023£740,000 | 4 Bed House77, Longlands Road, Sidcup, DA15 7LQ77, Longlands Road, Sidcup, DA15 7LQ
• Sold May 2023£670,000 | 4 Bed House110, Longlands Road, Sidcup, DA15 7LF110, Longlands Road, Sidcup, DA15 7LF
• Sold Jan 2023£730,000 | 4 Bed House23, York Avenue, Sidcup, DA15 7LJ23, York Avenue, Sidcup, DA15 7LJ
• Sold Nov 2022£672,500 | 4 Bed House6, Gloucester Avenue, Sidcup, DA15 7LL6, Gloucester Avenue, Sidcup, DA15 7LL
• Sold Jun 2021£595,000 | 4 Bed House10, Gloucester Avenue, Sidcup, DA15 7LL10, Gloucester Avenue, Sidcup, DA15 7LL
• Sold May 2021£620,000 | 4 Bed House41, York Avenue, Sidcup, DA15 7LJ41, York Avenue, Sidcup, DA15 7LJ
• Sold May 2021£725,000 | 4 Bed House107, Longlands Road, Sidcup, DA15 7LQ107, Longlands Road, Sidcup, DA15 7LQ
• Sold Feb 2018£630,000 | 4 Bed House89, Longlands Road, Sidcup, DA15 7LQ89, Longlands Road, Sidcup, DA15 7LQ
• Sold Oct 2016£395,000 | 4 Bed House97, Longlands Road, Sidcup, DA15 7LQ97, Longlands Road, Sidcup, DA15 7LQ
• Sold Oct 2016£510,000 | 4 Bed House111, Longlands Road, Sidcup, DA15 7LQ111, Longlands Road, Sidcup, DA15 7LQ
• Sold Jun 2015£532,000 | 4 Bed House105, Longlands Road, Sidcup, DA15 7LQ105, Longlands Road, Sidcup, DA15 7LQ

Our analysis of the public data ranks 17, Gloucester Avenue, Sidcup as the 5th largest and the 4th most expensive of the 61 addresses on Gloucester Avenue, Sidcup, DA15.

Against the DA15 postcode district average, it is £206k more expensive than the typical property.

• Longlands Primary School

  300 m away
• Burnt Oak Junior School

  800 m away
• Dulverton Primary School

  800 m away

• Chislehurst and Sidcup Grammar School

  1.2 km away
• Hurstmere School

  1.7 km away
• Chislehurst School for Girls

  1.7 km away

• Sidcup

  |

  800 m away
• New Eltham

  |

  1.5 km away
• Albany Park

  |

  2.4 km away

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