71, Gloucester Avenue, Sidcup occupies a 235 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 21st largest.

71, Gloucester Avenue, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Jul 2021.

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

71, Gloucester Avenue, Sidcup last changed hands on 3rd December 2021, selling for £625,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has dropped by 9.2% since December 2021.

• Sold Dec 2021£625,000

Land Registry records and our Estate Agent network show 229 sales of comparable properties within 550 metres of 71, Gloucester Avenue, Sidcup since 2014.

Most recently, 50, Harland Avenue, Sidcup, DA15 7PQ, a freehold house, sold at £750,000 on the 24th October 2025.

Read more about house prices in DA15.

• Sold Oct 2025£750,000 | 4 Bed House50, Harland Avenue, Sidcup, DA15 7PQ50, Harland Avenue, Sidcup, DA15 7PQ
• Sold Oct 2025£625,000 | 3 Bed House89, Brooklands Avenue, Sidcup, DA15 7PF89, Brooklands Avenue, Sidcup, DA15 7PF
• Sold Sep 2025£580,000 | 3 Bed House10, York Avenue, Sidcup, DA15 7LH10, York Avenue, Sidcup, DA15 7LH
• Sold Aug 2025£580,000 | 4 Bed House8, Chyngton Close, Sidcup, DA15 7HS8, Chyngton Close, Sidcup, DA15 7HS
• Sold Jun 2025£610,000 | 3 Bed House52, Little Birches, Sidcup, DA15 7LW52, Little Birches, Sidcup, DA15 7LW
• Sold Feb 2025£625,000 | 3 Bed House1, Longlands Park Crescent, Sidcup, DA15 7NG1, Longlands Park Crescent, Sidcup, DA15 7NG
• Sold Feb 2025£630,000 | 4 Bed House16, Harland Avenue, Sidcup, DA15 7PG16, Harland Avenue, Sidcup, DA15 7PG
• Sold Feb 2024£673,000 | 4 Bed House36, Austral Close, Sidcup, DA15 7LE36, Austral Close, Sidcup, DA15 7LE
• Sold Feb 2024£543,400 | 3 Bed House14, Austral Close, Sidcup, DA15 7LE14, Austral Close, Sidcup, DA15 7LE
• Sold May 2023£835,000 | 4 Bed House43, York Avenue, Sidcup, DA15 7LJ43, York Avenue, Sidcup, DA15 7LJ
• Sold Oct 2022£690,000 | 4 Bed House28, Harland Avenue, Sidcup, DA15 7PG28, Harland Avenue, Sidcup, DA15 7PG
• Sold Mar 2021£510,000 | 4 Bed House100, Longlands Park Crescent, Sidcup, DA15 7NQ100, Longlands Park Crescent, Sidcup, DA15 7NQ
• Sold Jan 2021£570,000 | 3 Bed House30, Gloucester Avenue, Sidcup, DA15 7LL30, Gloucester Avenue, Sidcup, DA15 7LL
• Sold Oct 2020£510,000 | 3 Bed House53, Little Birches, Sidcup, DA15 7LN53, Little Birches, Sidcup, DA15 7LN
• Sold Sep 2020£600,000 | 3 Bed House127, Brooklands Avenue, Sidcup, DA15 7PF127, Brooklands Avenue, Sidcup, DA15 7PF
• Sold Sep 2019£490,000 | 3 Bed House12, Austral Close, Sidcup, DA15 7LE12, Austral Close, Sidcup, DA15 7LE
• Sold Apr 2019£510,000 | 3 Bed House38, Gloucester Avenue, Sidcup, DA15 7LL38, Gloucester Avenue, Sidcup, DA15 7LL
• Sold Jul 2017£465,000 | 3 Bed House24, Gloucester Avenue, Sidcup, DA15 7LL24, Gloucester Avenue, Sidcup, DA15 7LL
• Sold Oct 2015£485,250 | 4 Bed House73, Gloucester Avenue, Sidcup, DA15 7LP73, Gloucester Avenue, Sidcup, DA15 7LP
• Sold May 2014£340,000 | 3 Bed House2B, Little Birches, Sidcup, DA15 7LW2B, Little Birches, Sidcup, DA15 7LW

Our analysis of the public data ranks 71, Gloucester Avenue, Sidcup as the 35th largest and the 31st most expensive of the 61 addresses on Gloucester Avenue, Sidcup, DA15.

Against the DA15 postcode district average, it is £95k 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.