According to data from HM Land Registry, 12, Koonowla Close, Westerham sits on a plot of 351 m².

We have plot size data on 16 out of 17 other houses in the postcode and 12, Koonowla Close, Westerham sits on the 15th largest plot.

12, Koonowla Close, Westerham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 25 Feb 2022.

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

According to HM Land Registry, 12, Koonowla Close, Westerham was last sold on 27th September 2022 for £610,000 and was recorded as a freehold house.

The property has had 3 sales since 1995.

Since September 2022, the market for similar properties has dropped by 3.9%.

• Sold Sep 2022£610,000
• Sold Jun 2004£275,000
• Sold Aug 1997£115,000

According to the Land Registry and our network of Estate Agents, there have been 170 sales of properties similar to 12, Koonowla Close, Westerham within a radius of 880 metres since 2007.

The most recent example is 12, Victoria Gardens, Westerham, TN16 3DH, a freehold house which sold for £430,000 on the 2nd April 2026.

Read more about house prices in TN16.

• Sold Apr 2026£430,000 | 4 Bed House12, Victoria Gardens, Westerham, TN16 3DH12, Victoria Gardens, Westerham, TN16 3DH
• Sold Apr 2026£542,000 | 4 Bed House47A, Victoria Gardens, Westerham, TN16 3DL47A, Victoria Gardens, Westerham, TN16 3DL
• 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 Nov 2024£624,000 | 4 Bed House17, Arthur Road, Westerham, TN16 3DD17, 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 Sep 2023£570,000 | 4 Bed House51, Jail Lane, Westerham, TN16 3SE51, Jail Lane, Westerham, TN16 3SE
• Sold Jun 2022£529,000 | 4 Bed House7, Forgefield, Westerham, TN16 3DS7, Forgefield, Westerham, TN16 3DS
• Sold May 2022£482,000 | 4 Bed House12, Christy Road, Westerham, TN16 3DG12, Christy Road, Westerham, TN16 3DG
• 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 Aug 2020£575,000 | 4 Bed House7, Dowding Road, Westerham, TN16 3BE7, Dowding Road, Westerham, TN16 3BE
• 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 Oct 2010£315,000 | 4 Bed House3, Koonowla Close, Westerham, TN16 3BJ3, Koonowla Close, Westerham, TN16 3BJ
• Sold Aug 2007£338,000 | 4 Bed House1, Koonowla Close, Westerham, TN16 3BJ1, Koonowla Close, Westerham, TN16 3BJ

Koonowla Close, Biggin Hill, Westerham, TN16 has a total of 17 addresses. According to our analysis of all the public data, 12, Koonowla Close, Westerham is the 13th largest and the 13th most expensive property on the street.

When compared to the postcode district it is £30k more expensive than the average property in TN16.

• 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

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.