3, Koonowla Close, Westerham occupies a 374 m² plot as recorded by HM Land Registry.

Of the 17 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the 10th largest.

3, Koonowla Close, Westerham has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 27 Apr 2010.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

3, Koonowla Close, Westerham last changed hands on 20th October 2010, selling for £315,000. 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 68.0% since October 2010.

• Sold Oct 2010£315,000

Land Registry records and our Estate Agent network show 175 sales of comparable properties within 900 metres of 3, Koonowla Close, Westerham since 2007.

Most recently, 41, Sunningvale Avenue, Westerham, TN16 3BX, a freehold house, sold at £655,000 on the 25th September 2025.

Read more about house prices in TN16.

• Sold Sep 2025£655,000 | 4 Bed House41, Sunningvale Avenue, Westerham, TN16 3BX41, Sunningvale Avenue, Westerham, TN16 3BX
• Sold Aug 2025£680,000 | 4 Bed House9C, Christy Road, Westerham, TN16 3DG9C, Christy Road, Westerham, TN16 3DG
• Sold Jun 2025£527,000 | 4 Bed House23, Sunningvale Close, Westerham, TN16 3BS23, Sunningvale Close, Westerham, TN16 3BS
• Sold Dec 2024£575,000 | 4 Bed House28, Mount Pleasant, Westerham, TN16 3TR28, Mount Pleasant, Westerham, TN16 3TR
• Sold Aug 2024£540,000 | 4 Bed House30, Arthur Road, Westerham, TN16 3DD30, Arthur Road, Westerham, TN16 3DD
• Sold Jun 2024£530,000 | 4 Bed House5, Koonowla Close, Westerham, TN16 3BJ5, Koonowla Close, Westerham, TN16 3BJ
• Sold Mar 2024£465,000 | 4 Bed House32, Mount Pleasant, Westerham, TN16 3TR32, Mount Pleasant, Westerham, TN16 3TR
• Sold Oct 2023£465,000 | 4 Bed House35A, Sunningvale Avenue, Westerham, TN16 3BX35A, Sunningvale Avenue, Westerham, TN16 3BX
• Sold Sep 2023£570,000 | 4 Bed House51, Jail Lane, Westerham, TN16 3SE51, Jail Lane, Westerham, TN16 3SE
• Sold Sep 2022£610,000 | 4 Bed House12, Koonowla Close, Westerham, TN16 3BJ12, Koonowla Close, Westerham, TN16 3BJ
• Sold Jun 2022£529,000 | 4 Bed House7, Forgefield, Westerham, TN16 3DS7, Forgefield, Westerham, TN16 3DS
• Sold Mar 2022£540,000 | 4 Bed House6, Hillcrest Road, Westerham, TN16 3TY6, Hillcrest Road, Westerham, TN16 3TY
• Sold Apr 2021£475,000 | 4 Bed House6, Sunningvale Close, Westerham, TN16 3BS6, Sunningvale Close, Westerham, TN16 3BS
• Sold Dec 2020£420,000 | 4 Bed House12, Hillcrest Road, Westerham, TN16 3TY12, Hillcrest Road, Westerham, TN16 3TY
• Sold Aug 2020£575,000 | 4 Bed House7, Dowding Road, Westerham, TN16 3BE7, Dowding Road, Westerham, TN16 3BE
• Sold Jul 2020£425,000 | 4 Bed House5, Sunningvale Avenue, Westerham, TN16 3BU5, Sunningvale Avenue, Westerham, TN16 3BU
• Sold Nov 2018£520,000 | 4 Bed House12, Crossley Close, Westerham, TN16 3BL12, Crossley Close, Westerham, TN16 3BL
• Sold May 2018£470,000 | 4 Bed House23, Dowding Road, Westerham, TN16 3BG23, Dowding Road, Westerham, TN16 3BG
• Sold Jun 2016£415,000 | 4 Bed House95, Magnolia Drive, Westerham, TN16 3SJ95, Magnolia Drive, Westerham, TN16 3SJ
• Sold Aug 2007£338,000 | 4 Bed House1, Koonowla Close, Westerham, TN16 3BJ1, Koonowla Close, Westerham, TN16 3BJ

Our analysis of the public data ranks 3, Koonowla Close, Westerham as the 15th largest and the 15th most expensive of the 17 addresses on Koonowla Close, Biggin Hill, Westerham, TN16.

Against the TN16 postcode district average, it is £19k more expensive than the typical property.

• Biggin Hill Primary School

  600 m away
• Oaklands Primary Academy

  700 m away
• Cudham Church of England Primary School

  1.5 km away

• Charles Darwin School

  800 m away
• Meridian High School

  3.0 km away
• Darrick Wood School

  5.6 km away

• Hayes (Kent)

  |

  6.6 km away
• Chelsfield

  |

  6.7 km away
• Woldingham

  |

  6.8 km away

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