21, Chiltern Avenue, Amersham occupies a 405 m² plot as recorded by HM Land Registry.

Of the 12 other houses in this postcode, 10 have recorded plot sizes, and this one ranks as the 9th largest.

21, Chiltern Avenue, Amersham has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Apr 2011.

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

21, Chiltern Avenue, Amersham last changed hands on 30th September 2008, selling for £389,500. 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 101.8% since September 2008.

• Sold Sep 2008£389,500

Land Registry records and our Estate Agent network show 43 sales of comparable properties within 610 metres of 21, Chiltern Avenue, Amersham since 2012.

Most recently, 2, Chestnut Close, Amersham, HP6 6EQ, a freehold house, sold at £839,000 on the 13th November 2025.

Read more about house prices in HP6.

• Sold Nov 2025£839,000 | 3 Bed House2, Chestnut Close, Amersham, HP6 6EQ2, Chestnut Close, Amersham, HP6 6EQ
• Sold Jul 2025£740,000 | 3 Bed House22, Lexham Gardens, Amersham, HP6 5JP22, Lexham Gardens, Amersham, HP6 5JP
• Sold Jul 2025£825,000 | 3 Bed House14, Saxon Close, Amersham, HP6 5QA14, Saxon Close, Amersham, HP6 5QA
• Sold Jul 2025£746,850 | 3 Bed House27, Orchard Lane, Amersham, HP6 5AA27, Orchard Lane, Amersham, HP6 5AA
• Sold Jun 2025£760,000 | 3 Bed House7, Orchard Lane, Amersham, HP6 5AB7, Orchard Lane, Amersham, HP6 5AB
• Sold Mar 2025£780,000 | 3 Bed House34, Orchard Lane, Amersham, HP6 5AA34, Orchard Lane, Amersham, HP6 5AA
• Sold Sep 2024£650,000 | 3 Bed House16, Springfields, Amersham, HP6 5JU16, Springfields, Amersham, HP6 5JU
• Sold Aug 2024£800,000 | 3 Bed House28, Lexham Gardens, Amersham, HP6 5JP28, Lexham Gardens, Amersham, HP6 5JP
• Sold May 2024£652,000 | 3 Bed House56, Orchard Lane, Amersham, HP6 5AA56, Orchard Lane, Amersham, HP6 5AA
• Sold Dec 2022£742,500 | 3 Bed House17, Lollards Close, Amersham, HP6 5JL17, Lollards Close, Amersham, HP6 5JL
• Sold Aug 2022£826,000 | 3 Bed House19, Chestnut Close, Amersham, HP6 6EQ19, Chestnut Close, Amersham, HP6 6EQ
• Sold Jun 2021£920,100 | 3 Bed House38, Highfield Close, Amersham, HP6 6HQ38, Highfield Close, Amersham, HP6 6HQ
• Sold Mar 2021£721,000 | 3 Bed House10, Woodside Close, Amersham, HP6 5EG10, Woodside Close, Amersham, HP6 5EG
• Sold Aug 2019£649,950 | 3 Bed House61, Grimsdells Lane, Amersham, HP6 6HH61, Grimsdells Lane, Amersham, HP6 6HH
• Sold Apr 2017£610,000 | 3 Bed House111, Woodside Road, Amersham, HP6 6AL111, Woodside Road, Amersham, HP6 6AL
• Sold Oct 2016£710,000 | 3 Bed House3, Chiltern Avenue, Amersham, HP6 5AE3, Chiltern Avenue, Amersham, HP6 5AE
• Sold Jun 2016£580,000 | 3 Bed House59, Grimsdells Lane, Amersham, HP6 6HH59, Grimsdells Lane, Amersham, HP6 6HH
• Sold Jul 2015£559,000 | 3 Bed House9, Woodside Close, Amersham, HP6 5EG9, Woodside Close, Amersham, HP6 5EG
• Sold Jul 2014£453,000 | 3 Bed House11, Orchard Lane, Amersham, HP6 5AB11, Orchard Lane, Amersham, HP6 5AB
• Sold Jul 2012£465,000 | 3 Bed House23, Chiltern Avenue, Amersham, HP6 5AE23, Chiltern Avenue, Amersham, HP6 5AE

Our analysis of the public data ranks 21, Chiltern Avenue, Amersham as the 13th largest and the 11th most expensive of the 24 addresses on Chiltern Avenue, Amersham, HP6.

Against the HP6 postcode district average, it is £10k more expensive than the typical property.

• Woodside Junior School

  600 m away
• Chestnut Lane School

  700 m away
• Elangeni School

  800 m away

• Dr Challoner's Grammar School

  500 m away
• Amersham School

  1.2 km away
• Dr Challoner's High School

  2.5 km away

• Amersham

  |

  400 m away
• Chalfont & Latimer

  |

  3.1 km away
• Chesham

  |

  3.3 km away

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