21, Knapmill Road occupies a 215 m² plot as recorded by HM Land Registry.

Of the 34 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the 5th largest.

21, Knapmill Road has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Sep 2016.

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

Land Registry records and our Estate Agent network show 102 sales of comparable properties within 530 metres of 21, Knapmill Road since 2020.

Most recently, 26, Fordmill Road, London, SE6 3JL, a freehold house, sold at £450,000 on the 12th February 2026.

Read more about house prices in SE6.

• Sold Feb 2026£450,000 | 3 Bed House26, Fordmill Road, London, SE6 3JL26, Fordmill Road, London, SE6 3JL
• Sold Nov 2025£350,000 | 3 Bed House111, Knapmill Road, London, SE6 3TE111, Knapmill Road, London, SE6 3TE
• Sold Oct 2025£407,500 | 3 Bed House30, Grangemill Road, London, SE6 3JY30, Grangemill Road, London, SE6 3JY
• Sold Sep 2025£408,500 | 3 Bed House34, Athelney Street, London, SE6 3LE34, Athelney Street, London, SE6 3LE
• Sold Sep 2025£430,000 | 3 Bed House12, Firhill Road, London, SE6 3JS12, Firhill Road, London, SE6 3JS
• Sold Sep 2025£400,000 | 3 Bed House22, Fordmill Road, London, SE6 3JL22, Fordmill Road, London, SE6 3JL
• Sold Aug 2025£425,000 | 3 Bed House48, Grangemill Road, London, SE6 3JY48, Grangemill Road, London, SE6 3JY
• Sold Jul 2025£368,000 | 3 Bed House6, Bedford Mews, London, SE6 3DX6, Bedford Mews, London, SE6 3DX
• Sold May 2025£358,000 | 3 Bed House66, Grangemill Road, London, SE6 3JY66, Grangemill Road, London, SE6 3JY
• Sold Mar 2025£400,000 | 3 Bed House13, Knapmill Way, London, SE6 3TD13, Knapmill Way, London, SE6 3TD
• Sold Sep 2024£430,000 | 3 Bed House24, Brookehowse Road, London, SE6 3TL24, Brookehowse Road, London, SE6 3TL
• Sold Aug 2024£430,000 | 3 Bed House5, Knapmill Way, London, SE6 3TD5, Knapmill Way, London, SE6 3TD
• Sold Jun 2024£368,000 | 3 Bed House44, Brookehowse Road, London, SE6 3TL44, Brookehowse Road, London, SE6 3TL
• Sold Jan 2024£370,000 | 3 Bed House4, Bedford Mews, London, SE6 3DX4, Bedford Mews, London, SE6 3DX
• Sold Jan 2024£372,500 | 3 Bed House24, Knapmill Road, London, SE6 3SZ24, Knapmill Road, London, SE6 3SZ
• Sold Jan 2023£350,000 | 3 Bed House3, Bedford Mews, London, SE6 3DX3, Bedford Mews, London, SE6 3DX
• Sold Mar 2021£425,000 | 5 Bed House56, Fordmill Road, London, SE6 3JL56, Fordmill Road, London, SE6 3JL
• Sold Sep 2020£400,000 | 3 Bed House4, Grangemill Road, London, SE6 3JY4, Grangemill Road, London, SE6 3JY
• Sold Jul 2020£340,000 | 3 Bed House99, Knapmill Road, London, SE6 3TE99, Knapmill Road, London, SE6 3TE
• Sold Mar 2020£365,000 | 3 Bed House48, Fordmill Road, London, SE6 3JL48, Fordmill Road, London, SE6 3JL

Our analysis of the public data ranks 21, Knapmill Road as the 70th largest and the 110th most expensive of the 169 addresses on Knapmill Road, London, SE6.

Against the SE6 postcode district average, it is £68k less expensive than the typical property.

• Athelney Primary School

  400 m away
• Rushey Green Primary School

  700 m away
• Rathfern Primary School

  800 m away

• Conisborough College

  900 m away
• Sedgehill Academy

  1.6 km away
• Forest Hill School

  1.8 km away

• Bellingham

  |

  400 m away
• Catford

  |

  800 m away
• Catford Bridge

  |

  800 m away

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