HM Land Registry records the plot of land for 18, St. Margarets Avenue, Sidcup as measuring 509 m².

That makes it the 3rd largest plot in the postcode, where all 34 other houses have recorded plot data.

18, St. Margarets Avenue, Sidcup has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 14 Apr 2012.

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

The most recent sale of 18, St. Margarets Avenue, Sidcup completed on 19th October 2012 at £250,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 67.2% over the period since October 2012.

Since 2009 57 properties similar to 18, St. Margarets Avenue, Sidcup have sold within a radius of 630 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 13th May 2026, was 20, Woodchurch Close, Sidcup, DA14 6QH, a freehold house which sold for £420,000.

Read more about house prices in DA15.

• Sold May 2026£420,000 | 3 Bed House20, Woodchurch Close, Sidcup, DA14 6QH20, Woodchurch Close, Sidcup, DA14 6QH
• Sold Mar 2026£375,000 | 2 Bed House1, Woodside Road, Sidcup, DA15 7JF1, Woodside Road, Sidcup, DA15 7JF
• Sold Sep 2025£410,000 | 3 Bed House6, Woodchurch Close, Sidcup, DA14 6QH6, Woodchurch Close, Sidcup, DA14 6QH
• Sold Jul 2025£367,000 | 2 Bed House37, Shirley Road, Sidcup, DA15 7JW37, Shirley Road, Sidcup, DA15 7JW
• Sold Jun 2025£435,000 | 3 Bed House17, Woodchurch Close, Sidcup, DA14 6QH17, Woodchurch Close, Sidcup, DA14 6QH
• Sold Jun 2025£470,000 | 3 Bed House21, Chartwell Close, London, SE9 3UQ21, Chartwell Close, London, SE9 3UQ
• Sold Nov 2024£395,000 | 2 Bed House15, Woodchurch Close, Sidcup, DA14 6QH15, Woodchurch Close, Sidcup, DA14 6QH
• Sold Sep 2024£430,000 | 2 Bed House83, Brooklands Avenue, Sidcup, DA15 7PF83, Brooklands Avenue, Sidcup, DA15 7PF
• Sold Aug 2024£425,000 | 3 Bed House29, Shirley Road, Sidcup, DA15 7JW29, Shirley Road, Sidcup, DA15 7JW
• Sold Jul 2024£450,000 | 3 Bed House24, Chartwell Close, London, SE9 3UQ24, Chartwell Close, London, SE9 3UQ
• Sold Sep 2023£475,000 | 2 Bed House137, Harland Avenue, Sidcup, DA15 7NZ137, Harland Avenue, Sidcup, DA15 7NZ
• Sold Aug 2023£320,000 | 3 Bed House36, Woodchurch Close, Sidcup, DA14 6QH36, Woodchurch Close, Sidcup, DA14 6QH
• Sold Nov 2022£390,000 | 3 Bed House33, Woodchurch Close, Sidcup, DA14 6QH33, Woodchurch Close, Sidcup, DA14 6QH
• Sold Aug 2022£382,000 | 2 Bed House18, Woodchurch Close, Sidcup, DA14 6QH18, Woodchurch Close, Sidcup, DA14 6QH
• Sold Nov 2020£326,000 | 3 Bed House10, Woodchurch Close, Sidcup, DA14 6QH10, Woodchurch Close, Sidcup, DA14 6QH
• Sold Nov 2020£430,000 | 3 Bed House28, Chartwell Close, London, SE9 3UQ28, Chartwell Close, London, SE9 3UQ
• Sold Aug 2019£338,000 | 3 Bed House8, Woodchurch Close, Sidcup, DA14 6QH8, Woodchurch Close, Sidcup, DA14 6QH
• Sold Jul 2018£417,500 | 2 Bed House85, Brooklands Avenue, Sidcup, DA15 7PF85, Brooklands Avenue, Sidcup, DA15 7PF
• Sold Sep 2017£345,000 | 3 Bed House5, Woodchurch Close, Sidcup, DA14 6QH5, Woodchurch Close, Sidcup, DA14 6QH
• Sold Aug 2009£247,500 | 2 Bed House30, Westbrooke Road, Sidcup, DA15 7PH30, Westbrooke Road, Sidcup, DA15 7PH

Of the 34 addresses on St. Margarets Avenue, Sidcup, DA15, 18, St. Margarets Avenue, Sidcup comes out as the 33rd largest and the 34th most expensive in our analysis of the public data.

It is also £72k less expensive than the average property across the DA15 district.

• Dulverton Primary School

  500 m away
• Longlands Primary School

  600 m away
• Edgebury Primary School

  900 m away

• Chislehurst School for Girls

  1.6 km away
• Chislehurst and Sidcup Grammar School

  1.9 km away
• St Thomas More Catholic Comprehensive School

  2.3 km away

• New Eltham

  |

  1.0 km away
• Sidcup

  |

  1.5 km away
• Mottingham

  |

  2.3 km away

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