According to data from HM Land Registry, 1, Welbeck Avenue, Sidcup sits on a plot of 360 m².

We have plot size data on 14 out of 14 other houses in the postcode and 1, Welbeck Avenue, Sidcup sits on the 12th largest plot.

1, Welbeck Avenue, Sidcup has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 May 2026.

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

According to the Land Registry and our network of Estate Agents, there have been 237 sales of properties similar to 1, Welbeck Avenue, Sidcup within a radius of 690 metres since 2017.

The most recent example is 22, Collindale Avenue, Sidcup, DA15 9DW, a freehold house which sold for £575,000 on the 10th April 2026.

Read more about house prices in DA15.

• Sold Apr 2026£575,000 | 4 Bed House22, Collindale Avenue, Sidcup, DA15 9DW22, Collindale Avenue, Sidcup, DA15 9DW
• Sold Nov 2025£880,000 | 5 Bed House103, Marlborough Park Avenue, Sidcup, DA15 9DY103, Marlborough Park Avenue, Sidcup, DA15 9DY
• Sold Aug 2025£740,000 | 4 Bed House8, Montrose Avenue, Sidcup, DA15 9DR8, Montrose Avenue, Sidcup, DA15 9DR
• Sold Jun 2025£740,000 | 4 Bed House35, Marlborough Park Avenue, Sidcup, DA15 9DL35, Marlborough Park Avenue, Sidcup, DA15 9DL
• Sold Apr 2025£630,000 | 4 Bed House79, Marlborough Park Avenue, Sidcup, DA15 9DY79, Marlborough Park Avenue, Sidcup, DA15 9DY
• Sold Oct 2024£737,500 | 4 Bed House111, Burnt Oak Lane, Sidcup, DA15 9DD111, Burnt Oak Lane, Sidcup, DA15 9DD
• Sold Jul 2024£600,000 | 4 Bed House61, Willersley Avenue, Sidcup, DA15 9EJ61, Willersley Avenue, Sidcup, DA15 9EJ
• Sold Jul 2024£660,827 | 4 Bed House73, Marlborough Park Avenue, Sidcup, DA15 9DL73, Marlborough Park Avenue, Sidcup, DA15 9DL
• Sold Nov 2023£640,000 | 4 Bed House7, Welbeck Avenue, Sidcup, DA15 9BU7, Welbeck Avenue, Sidcup, DA15 9BU
• Sold Mar 2023£768,000 | 4 Bed House2, Welbeck Avenue, Sidcup, DA15 9BU2, Welbeck Avenue, Sidcup, DA15 9BU
• Sold Aug 2022£687,500 | 4 Bed House105, Burnt Oak Lane, Sidcup, DA15 9DD105, Burnt Oak Lane, Sidcup, DA15 9DD
• Sold May 2022£785,000 | 4 Bed House51, Marlborough Park Avenue, Sidcup, DA15 9DL51, Marlborough Park Avenue, Sidcup, DA15 9DL
• Sold Jun 2021£757,500 | 4 Bed House52, Collindale Avenue, Sidcup, DA15 9DW52, Collindale Avenue, Sidcup, DA15 9DW
• Sold Nov 2019£575,000 | 4 Bed House13, Chatsworth Avenue, Sidcup, DA15 9BS13, Chatsworth Avenue, Sidcup, DA15 9BS
• Sold Nov 2019£570,000 | 4 Bed House1, Chatsworth Avenue, Sidcup, DA15 9BS1, Chatsworth Avenue, Sidcup, DA15 9BS
• Sold Jul 2019£570,000 | 4 Bed House35, Burnt Oak Lane, Sidcup, DA15 9BZ35, Burnt Oak Lane, Sidcup, DA15 9BZ
• Sold Feb 2019£582,500 | 4 Bed House5, Chatsworth Avenue, Sidcup, DA15 9BS5, Chatsworth Avenue, Sidcup, DA15 9BS
• Sold Jan 2019£565,000 | 4 Bed House47, Marlborough Park Avenue, Sidcup, DA15 9DL47, Marlborough Park Avenue, Sidcup, DA15 9DL
• Sold Jan 2018£598,500 | 4 Bed House29, Marlborough Park Avenue, Sidcup, DA15 9DL29, Marlborough Park Avenue, Sidcup, DA15 9DL
• Sold Dec 2017£535,000 | 4 Bed House26, Marlborough Park Avenue, Sidcup, DA15 9DJ26, Marlborough Park Avenue, Sidcup, DA15 9DJ

Welbeck Avenue, Sidcup, DA15 has a total of 14 addresses. According to our analysis of all the public data, 1, Welbeck Avenue, Sidcup is the largest and the most expensive property on the street.

When compared to the postcode district it is £213k more expensive than the average property in DA15.

• Chatsworth Infant School

  100 m away
• Holy Trinity Lamorbey Church of England School

  200 m away
• Burnt Oak Junior School

  300 m away

• Chislehurst and Sidcup Grammar School

  500 m away
• Hurstmere School

  800 m away
• Blackfen School for Girls

  1.2 km away

• Sidcup

  |

  600 m away
• Albany Park

  |

  1.6 km away
• New Eltham

  |

  2.3 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.