21, Ashcroft Avenue, Sidcup occupies a 271 m² plot as recorded by HM Land Registry.

All 29 other houses in this postcode have recorded plot sizes, and this one ranks as the 25th largest.

21, Ashcroft Avenue, Sidcup has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Dec 2023.

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

Land Registry records and our Estate Agent network show 282 sales of comparable properties within 490 metres of 21, Ashcroft Avenue, Sidcup since 2020.

Most recently, 19, Ashcroft Avenue, Sidcup, DA15 8NS, a freehold house, sold at £470,000 on the 24th April 2026.

Read more about house prices in DA15.

• Sold Apr 2026£470,000 | 3 Bed House19, Ashcroft Avenue, Sidcup, DA15 8NS19, Ashcroft Avenue, Sidcup, DA15 8NS
• Sold Mar 2026£431,000 | 3 Bed House9, Ashcroft Crescent, Sidcup, DA15 8NT9, Ashcroft Crescent, Sidcup, DA15 8NT
• Sold Feb 2026£466,250 | 3 Bed House5, Ashcroft Avenue, Sidcup, DA15 8NS5, Ashcroft Avenue, Sidcup, DA15 8NS
• Sold Jan 2026£505,000 | 3 Bed House271, Burnt Oak Lane, Sidcup, DA15 8LR271, Burnt Oak Lane, Sidcup, DA15 8LR
• Sold Sep 2025£530,000 | 3 Bed House2, Sycamore Avenue, Sidcup, DA15 8PL2, Sycamore Avenue, Sidcup, DA15 8PL
• Sold Aug 2025£450,000 | 3 Bed House311, Days Lane, Sidcup, DA15 8PQ311, Days Lane, Sidcup, DA15 8PQ
• Sold Jun 2025£460,000 | 3 Bed House117, Wellington Avenue, Sidcup, DA15 9HB117, Wellington Avenue, Sidcup, DA15 9HB
• Sold Mar 2025£499,500 | 3 Bed House10, Wellington Avenue, Sidcup, DA15 9HG10, Wellington Avenue, Sidcup, DA15 9HG
• Sold Jan 2025£425,000 | 3 Bed House4, Wellington Avenue, Sidcup, DA15 9HG4, Wellington Avenue, Sidcup, DA15 9HG
• Sold Dec 2024£550,000 | 3 Bed House232, Days Lane, Sidcup, DA15 8PG232, Days Lane, Sidcup, DA15 8PG
• Sold Oct 2024£485,000 | 3 Bed House18, Ashcroft Avenue, Sidcup, DA15 8NP18, Ashcroft Avenue, Sidcup, DA15 8NP
• Sold Aug 2024£525,000 | 3 Bed House284, Burnt Oak Lane, Sidcup, DA15 8LN284, Burnt Oak Lane, Sidcup, DA15 8LN
• Sold Jun 2024£447,500 | 3 Bed House310, Burnt Oak Lane, Sidcup, DA15 8LN310, Burnt Oak Lane, Sidcup, DA15 8LN
• Sold Oct 2023£423,000 | 3 Bed House12, Sycamore Avenue, Sidcup, DA15 8PL12, Sycamore Avenue, Sidcup, DA15 8PL
• Sold Aug 2023£503,000 | 3 Bed House43, Ashcroft Avenue, Sidcup, DA15 8NS43, Ashcroft Avenue, Sidcup, DA15 8NS
• Sold Aug 2022£475,000 | 3 Bed House65, Wellington Avenue, Sidcup, DA15 9HF65, Wellington Avenue, Sidcup, DA15 9HF
• Sold Jun 2021£412,000 | 3 Bed House49, Ashcroft Avenue, Sidcup, DA15 8NS49, Ashcroft Avenue, Sidcup, DA15 8NS
• Sold Mar 2021£440,000 | 3 Bed House20, Ashcroft Avenue, Sidcup, DA15 8NP20, Ashcroft Avenue, Sidcup, DA15 8NP
• Sold Feb 2021£415,000 | 3 Bed House52, Wellington Avenue, Sidcup, DA15 9HE52, Wellington Avenue, Sidcup, DA15 9HE
• Sold Jul 2020£392,500 | 3 Bed House39, Wellington Avenue, Sidcup, DA15 9HF39, Wellington Avenue, Sidcup, DA15 9HF

Our analysis of the public data ranks 21, Ashcroft Avenue, Sidcup as the 33rd largest and the 36th most expensive of the 56 addresses on Ashcroft Avenue, Sidcup, DA15.

Against the DA15 postcode district average, it is £22k less expensive than the typical property.

• Days Lane Primary School

  300 m away
• Our Lady of the Rosary Catholic Primary School

  700 m away
• Sherwood Park Primary School

  700 m away

• Blackfen School for Girls

  700 m away
• Bexley Grammar School

  900 m away
• Harris Academy Falconwood

  1.4 km away

• Sidcup

  |

  1.6 km away
• Welling

  |

  1.8 km away
• Falconwood

  |

  2.0 km away

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