1, Grassmount occupies a 156 m² plot as recorded by HM Land Registry.

All 29 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.

1, Grassmount last changed hands on 15th October 2010, selling for £396,850. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has risen by 117.6% since October 2010.

Land Registry records and our Estate Agent network show 98 sales of comparable properties within 400 metres of 1, Grassmount since 2012.

Most recently, 13, Little Brownings, London, SE23 3XJ, a freehold house, sold at £799,950 on the 24th September 2025.

Read more about house prices in SE23.

• Sold Sep 2025£799,950 | 4 Bed House13, Little Brownings, London, SE23 3XJ13, Little Brownings, London, SE23 3XJ
• Sold Oct 2024£770,000 | 4 Bed House1, Little Brownings, London, SE23 3XJ1, Little Brownings, London, SE23 3XJ
• Sold Sep 2024£755,000 | 3 Bed House5, Grassmount, London, SE23 3UW5, Grassmount, London, SE23 3UW
• Sold Jun 2024£896,000 | 4 Bed House7, Grassmount, London, SE23 3UW7, Grassmount, London, SE23 3UW
• Sold Jun 2024£815,000 | 3 Bed House24, Little Brownings, London, SE23 3XJ24, Little Brownings, London, SE23 3XJ
• Sold Feb 2023£825,000 | 4 Bed House16, Grassmount, London, SE23 3UW16, Grassmount, London, SE23 3UW
• Sold Oct 2022£875,000 | 4 Bed House9, Grassmount, London, SE23 3UW9, Grassmount, London, SE23 3UW
• Sold Jul 2022£825,000 | 4 Bed House24, Grassmount, London, SE23 3UW24, Grassmount, London, SE23 3UW
• Sold Jan 2022£730,000 | 4 Bed House21, Forestholme Close, London, SE23 3UQ21, Forestholme Close, London, SE23 3UQ
• Sold Sep 2021£740,000 | 4 Bed House31, Grassmount, London, SE23 3UW31, Grassmount, London, SE23 3UW
• Sold Aug 2021£773,200 | 4 Bed House16, Little Brownings, London, SE23 3XJ16, Little Brownings, London, SE23 3XJ
• Sold Apr 2021£675,000 | 4 Bed House7, Forestholme Close, London, SE23 3UQ7, Forestholme Close, London, SE23 3UQ
• Sold Nov 2020£738,000 | 4 Bed House14, Little Brownings, London, SE23 3XJ14, Little Brownings, London, SE23 3XJ
• Sold Sep 2019£650,000 | 4 Bed House18, Forestholme Close, London, SE23 3UQ18, Forestholme Close, London, SE23 3UQ
• Sold Apr 2019£760,000 | 4 Bed House10, Grassmount, London, SE23 3UW10, Grassmount, London, SE23 3UW
• Sold Aug 2017£685,000 | 4 Bed House3, Forestholme Close, London, SE23 3UQ3, Forestholme Close, London, SE23 3UQ
• Sold Aug 2017£810,000 | 4 Bed House18, Grassmount, London, SE23 3UW18, Grassmount, London, SE23 3UW
• Sold Jan 2017£615,000 | 4 Bed House24, Forestholme Close, London, SE23 3UQ24, Forestholme Close, London, SE23 3UQ
• Sold Jun 2014£650,000 | 4 Bed House26, Grassmount, London, SE23 3UW26, Grassmount, London, SE23 3UW
• Sold Jul 2012£380,000 | 4 Bed House17, Forestholme Close, London, SE23 3UQ17, Forestholme Close, London, SE23 3UQ

Our analysis of the public data ranks 1, Grassmount as the 14th largest and the 14th most expensive of the 31 addresses on Grassmount, London, SE23.

Against the SE23 postcode district average, it is £280k more expensive than the typical property.

• Eliot Bank Primary School

  200 m away
• Holy Trinity Church of England Primary School

  400 m away
• Horniman Primary School

  500 m away

• Sydenham School

  500 m away
• Forest Hill School

  1.1 km away
• Kingsdale Foundation School

  1.9 km away

• Forest Hill

  |

  500 m away
• Sydenham

  |

  1.3 km away
• Sydenham (London)

  |

  1.4 km away

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