18, Thorndon Close, Orpington occupies a 222 m² plot as recorded by HM Land Registry.

Of the 21 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the 8th largest.

18, Thorndon Close, Orpington has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 10 Nov 2023.

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

18, Thorndon Close, Orpington last changed hands on 11th June 2012, selling for £157,000. 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 risen by 119.7% since June 2012.

• Sold Jun 2012£157,000

Land Registry records and our Estate Agent network show 165 sales of comparable properties within 770 metres of 18, Thorndon Close, Orpington since 2014.

Most recently, 57, Beddington Road, Orpington, BR5 2TF, a freehold house, sold at £447,000 on the 16th February 2026.

Read more about house prices in BR5.

• Sold Feb 2026£447,000 | 3 Bed House57, Beddington Road, Orpington, BR5 2TF57, Beddington Road, Orpington, BR5 2TF
• Sold Dec 2025£395,000 | 3 Bed House90, Beddington Road, Orpington, BR5 2TE90, Beddington Road, Orpington, BR5 2TE
• Sold Dec 2025£415,000 | 3 Bed House112, Petersham Drive, Orpington, BR5 2QG112, Petersham Drive, Orpington, BR5 2QG
• Sold Nov 2025£410,000 | 3 Bed House10, Thorndon Close, Orpington, BR5 2SJ10, Thorndon Close, Orpington, BR5 2SJ
• Sold Mar 2025£420,000 | 3 Bed House51, Beddington Road, Orpington, BR5 2TF51, Beddington Road, Orpington, BR5 2TF
• Sold Mar 2025£425,000 | 3 Bed House1, Breakspears Drive, Orpington, BR5 2RU1, Breakspears Drive, Orpington, BR5 2RU
• Sold Dec 2024£435,000 | 3 Bed House21, Breakspears Drive, Orpington, BR5 2RU21, Breakspears Drive, Orpington, BR5 2RU
• Sold Sep 2024£465,000 | 3 Bed House37, Leesons Way, Orpington, BR5 2QB37, Leesons Way, Orpington, BR5 2QB
• Sold May 2024£380,000 | 3 Bed House58, Breakspears Drive, Orpington, BR5 2RY58, Breakspears Drive, Orpington, BR5 2RY
• Sold Nov 2023£400,000 | 3 Bed House44, Leith Hill, Orpington, BR5 2RS44, Leith Hill, Orpington, BR5 2RS
• Sold Oct 2023£380,000 | 3 Bed House5, Mickleham Road, Orpington, BR5 2RN5, Mickleham Road, Orpington, BR5 2RN
• Sold May 2023£350,000 | 3 Bed House52, Mickleham Road, Orpington, BR5 2RJ52, Mickleham Road, Orpington, BR5 2RJ
• Sold Mar 2023£476,000 | 3 Bed House34, Mickleham Road, Orpington, BR5 2RL34, Mickleham Road, Orpington, BR5 2RL
• Sold Nov 2021£435,000 | 3 Bed House6, Beddington Road, Orpington, BR5 2TG6, Beddington Road, Orpington, BR5 2TG
• Sold Mar 2021£429,000 | 3 Bed House10, Beddington Road, Orpington, BR5 2TG10, Beddington Road, Orpington, BR5 2TG
• Sold Feb 2021£415,000 | 3 Bed House1, Thorndon Road, Orpington, BR5 2SL1, Thorndon Road, Orpington, BR5 2SL
• Sold Feb 2021£395,000 | 3 Bed House23, Giggs Hill, Orpington, BR5 2SA23, Giggs Hill, Orpington, BR5 2SA
• Sold Sep 2020£380,000 | 3 Bed House62, Whitewebbs Way, Orpington, BR5 2TJ62, Whitewebbs Way, Orpington, BR5 2TJ
• Sold May 2018£320,000 | 3 Bed House5, Thorndon Road, Orpington, BR5 2SL5, Thorndon Road, Orpington, BR5 2SL
• Sold Jul 2014£285,000 | 3 Bed House32, Mickleham Road, Orpington, BR5 2RL32, Mickleham Road, Orpington, BR5 2RL

Our analysis of the public data ranks 18, Thorndon Close, Orpington as the 6th largest and the 8th most expensive of the 47 addresses on Thorndon Close, Orpington, BR5.

Against the BR5 postcode district average, it is £38k less expensive than the typical property.

• St Peter and St Paul Catholic Primary School

  600 m away
• Midfield Primary School

  700 m away
• Leesons Primary School

  1.0 km away

• Kemnal Technology College

  1.2 km away
• Chislehurst School for Girls

  1.5 km away
• Orion Coopers

  1.6 km away

• St Mary Cray

  |

  1.4 km away
• Petts Wood

  |

  2.4 km away
• Chislehurst

  |

  2.7 km away

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