HM Land Registry records the plot of land for 18, Sidmouth Road, Orpington as measuring 156 m².

That makes it the 5th largest plot in the postcode, where all 9 other houses have recorded plot data.

18, Sidmouth Road, Orpington has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 16 Apr 2026.

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, Sidmouth Road, Orpington completed on 23rd September 2005 at £185,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

• Sold Sep 2005£185,000
• Sold Jun 2002£153,500

Since 2021 217 properties similar to 18, Sidmouth Road, Orpington have sold within a radius of 590 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 1st April 2026, was 12, Robinhood Green, Orpington, BR5 2AS, a freehold house which sold for £500,000.

Read more about house prices in BR5.

• Sold Apr 2026£500,000 | 3 Bed House12, Robinhood Green, Orpington, BR5 2AS12, Robinhood Green, Orpington, BR5 2AS
• Sold Mar 2026£427,000 | 3 Bed House8, Sidmouth Road, Orpington, BR5 2EQ8, Sidmouth Road, Orpington, BR5 2EQ
• Sold Mar 2026£437,000 | 3 Bed House12, Hood Avenue, Orpington, BR5 2EF12, Hood Avenue, Orpington, BR5 2EF
• Sold Feb 2026£430,000 | 3 Bed House29, Amherst Drive, Orpington, BR5 2ER29, Amherst Drive, Orpington, BR5 2ER
• Sold Sep 2025£485,000 | 3 Bed House35, Amherst Drive, Orpington, BR5 2ER35, Amherst Drive, Orpington, BR5 2ER
• Sold Aug 2025£462,000 | 3 Bed House39, Marion Crescent, Orpington, BR5 2DF39, Marion Crescent, Orpington, BR5 2DF
• Sold Jul 2025£495,000 | 3 Bed House15, Trentham Drive, Orpington, BR5 2EP15, Trentham Drive, Orpington, BR5 2EP
• Sold Jul 2025£380,000 | 3 Bed House38, Cray Valley Road, Orpington, BR5 2EZ38, Cray Valley Road, Orpington, BR5 2EZ
• Sold Apr 2025£455,000 | 3 Bed House7, Priorsford Avenue, Orpington, BR5 2EN7, Priorsford Avenue, Orpington, BR5 2EN
• Sold Feb 2025£435,000 | 3 Bed House30, Poverest Road, Orpington, BR5 2DG30, Poverest Road, Orpington, BR5 2DG
• Sold Sep 2024£467,500 | 3 Bed House9, Priorsford Avenue, Orpington, BR5 2EN9, Priorsford Avenue, Orpington, BR5 2EN
• Sold Jul 2024£485,000 | 3 Bed House51, Hayfield Road, Orpington, BR5 2DL51, Hayfield Road, Orpington, BR5 2DL
• Sold Jun 2024£430,000 | 3 Bed House51, Marion Crescent, Orpington, BR5 2DF51, Marion Crescent, Orpington, BR5 2DF
• Sold May 2024£375,000 | 3 Bed House18, Stanley Way, Orpington, BR5 2HE18, Stanley Way, Orpington, BR5 2HE
• Sold Dec 2023£411,000 | 3 Bed House4, Hood Avenue, Orpington, BR5 2EF4, Hood Avenue, Orpington, BR5 2EF
• Sold Dec 2022£550,000 | 3 Bed House102, Poverest Road, Orpington, BR5 2DQ102, Poverest Road, Orpington, BR5 2DQ
• Sold Nov 2022£422,000 | 3 Bed House10, Trentham Drive, Orpington, BR5 2EP10, Trentham Drive, Orpington, BR5 2EP
• Sold Jan 2022£468,000 | 3 Bed House19, Priorsford Avenue, Orpington, BR5 2EN19, Priorsford Avenue, Orpington, BR5 2EN
• Sold May 2021£382,500 | 3 Bed House56, Cray Valley Road, Orpington, BR5 2EZ56, Cray Valley Road, Orpington, BR5 2EZ
• Sold Jan 2021£435,000 | 3 Bed House46, Cray Valley Road, Orpington, BR5 2EZ46, Cray Valley Road, Orpington, BR5 2EZ

Of the 30 addresses on Sidmouth Road, Orpington, BR5, 18, Sidmouth Road, Orpington comes out as the 6th largest and the 6th most expensive in our analysis of the public data.

It is also £62k less expensive than the average property across the BR5 district.

• Poverest Primary School

  200 m away
• Leesons Primary School

  800 m away
• St. Mary Cray Primary Academy

  800 m away

• Harris Academy Orpington

  2.0 km away
• Kemnal Technology College

  2.3 km away
• St Olave's and St Saviour's Grammar School

  2.8 km away

• St Mary Cray

  |

  400 m away
• Petts Wood

  |

  2.1 km away
• Orpington

  |

  2.3 km away

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