HM Land Registry records the plot of land for 21, Chartwell Close as measuring 301 m².

That makes it the 11th largest plot in the postcode, where all 27 other houses have recorded plot data.

21, Chartwell Close has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 28 Mar 2025.

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 21, Chartwell Close completed on 20th June 2025 at £470,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 18.3% over the period since June 2025.

• Sold Jun 2025£470,000
• Sold May 2003£240,000

Since 2007 19 properties similar to 21, Chartwell Close have sold within a radius of 560 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 1st August 2025, was 8, St. Margarets Avenue, Sidcup, DA15 7NP, a freehold house which sold for £526,000.

Read more about house prices in SE9.

• Sold Aug 2025£526,000 | 3 Bed House8, St. Margarets Avenue, Sidcup, DA15 7NP8, St. Margarets Avenue, Sidcup, DA15 7NP
• Sold Mar 2025£500,000 | 3 Bed House2, Agaton Path, London, SE9 3DS2, Agaton Path, London, SE9 3DS
• Sold Sep 2024£430,000 | 2 Bed House83, Brooklands Avenue, Sidcup, DA15 7PF83, Brooklands Avenue, Sidcup, DA15 7PF
• 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 Apr 2022£485,000 | 3 Bed House22, Chartwell Close, London, SE9 3UQ22, Chartwell Close, London, SE9 3UQ
• Sold Jan 2022£360,000 | 3 Bed House60, Merchland Road, London, SE9 2BH60, Merchland Road, London, SE9 2BH
• Sold Nov 2020£430,000 | 3 Bed House28, Chartwell Close, London, SE9 3UQ28, Chartwell Close, London, SE9 3UQ
• Sold Oct 2019£365,000 | 3 Bed House113, Imperial Way, Chislehurst, BR7 6JS113, Imperial Way, Chislehurst, BR7 6JS
• Sold Oct 2019£405,000 | 3 Bed House128, Imperial Way, Chislehurst, BR7 6JS128, Imperial Way, Chislehurst, BR7 6JS
• Sold Jul 2018£417,500 | 2 Bed House85, Brooklands Avenue, Sidcup, DA15 7PF85, Brooklands Avenue, Sidcup, DA15 7PF
• Sold Oct 2012£250,000 | 2 Bed House18, St. Margarets Avenue, Sidcup, DA15 7NP18, St. Margarets Avenue, Sidcup, DA15 7NP
• Sold Dec 2011£255,000 | 3 Bed House12, Chartwell Close, London, SE9 3UQ12, Chartwell Close, London, SE9 3UQ
• Sold Oct 2011£317,000 | 2 Bed House47, Frensham Road, London, SE9 3RG47, Frensham Road, London, SE9 3RG
• Sold Jan 2011£247,950 | 3 Bed House122, Imperial Way, Chislehurst, BR7 6JS122, Imperial Way, Chislehurst, BR7 6JS
• Sold Aug 2009£247,500 | 2 Bed House30, Westbrooke Road, Sidcup, DA15 7PH30, Westbrooke Road, Sidcup, DA15 7PH
• Sold Jan 2008£210,000 | 3 Bed House313, Old Farm Avenue, Sidcup, DA15 8AA313, Old Farm Avenue, Sidcup, DA15 8AA
• Sold Aug 2007£220,000 | 3 Bed House330, Old Farm Avenue, Sidcup, DA15 8AS330, Old Farm Avenue, Sidcup, DA15 8AS
• Sold Apr 2007£250,000 | 3 Bed House7, Brooklands Avenue, Sidcup, DA15 7PE7, Brooklands Avenue, Sidcup, DA15 7PE

Of the 27 addresses on Chartwell Close, London, SE9, 21, Chartwell Close comes out as the 23rd largest and the 24th most expensive in our analysis of the public data.

It is also £4k less expensive than the average property across the SE9 district.

• Dulverton Primary School

  200 m away
• Wyborne Primary School

  900 m away
• Longlands Primary School

  900 m away

• Chislehurst School for Girls

  1.9 km away
• St Thomas More Catholic Comprehensive School

  1.9 km away
• Leigh Stationers' Academy

  2.0 km away

• New Eltham

  |

  700 m away
• Sidcup

  |

  1.7 km away
• Mottingham

  |

  2.0 km away

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