HM Land Registry records the plot of land for 40, Hornbeam Spring, Knebworth as measuring 511 m².

That makes it the 2nd largest plot in the postcode, where 17 of the 28 other houses have recorded plot data.

40, Hornbeam Spring, Knebworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 Oct 2023.

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

The most recent sale of 40, Hornbeam Spring, Knebworth completed on 24th October 2024 at £550,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 18.8% over the period since October 2024.

• Sold Oct 2024£550,000
• Sold Jan 2010£260,000

Since 2014 125 properties similar to 40, Hornbeam Spring, Knebworth have sold within a radius of 950 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 18th December 2025, was 17, Sayer Way, Knebworth, SG3 6BN, a freehold house which sold for £500,000.

Read more about house prices in SG3.

• Sold Dec 2025£500,000 | 3 Bed House17, Sayer Way, Knebworth, SG3 6BN17, Sayer Way, Knebworth, SG3 6BN
• Sold Nov 2025£520,000 | 3 Bed House6, Deepings Close, Knebworth, SG3 6BW6, Deepings Close, Knebworth, SG3 6BW
• Sold Oct 2025£510,000 | 4 Bed House52, Orchard Way, Knebworth, SG3 6BU52, Orchard Way, Knebworth, SG3 6BU
• Sold Aug 2025£565,000 | 4 Bed House21A, Gun Lane, Knebworth, SG3 6BJ21A, Gun Lane, Knebworth, SG3 6BJ
• Sold Apr 2025£485,000 | 3 Bed House16, Stockens Dell, Knebworth, SG3 6BG16, Stockens Dell, Knebworth, SG3 6BG
• Sold Sep 2024£460,000 | 4 Bed House14, Broom Grove, Knebworth, SG3 6BQ14, Broom Grove, Knebworth, SG3 6BQ
• Sold Jun 2024£440,000 | 3 Bed House36, Stockens Dell, Knebworth, SG3 6BG36, Stockens Dell, Knebworth, SG3 6BG
• Sold Jun 2023£500,000 | 3 Bed House25, Hornbeam Spring, Knebworth, SG3 6BE25, Hornbeam Spring, Knebworth, SG3 6BE
• Sold Nov 2022£500,000 | 3 Bed House27, Sayer Way, Knebworth, SG3 6BN27, Sayer Way, Knebworth, SG3 6BN
• Sold Jun 2022£500,000 | 4 Bed House31, Sayer Way, Knebworth, SG3 6BN31, Sayer Way, Knebworth, SG3 6BN
• Sold Sep 2021£505,000 | 3 Bed House32, Stockens Dell, Knebworth, SG3 6BG32, Stockens Dell, Knebworth, SG3 6BG
• Sold Oct 2020£415,000 | 4 Bed House18, Orchard Way, Knebworth, SG3 6BU18, Orchard Way, Knebworth, SG3 6BU
• Sold Apr 2020£400,000 | 4 Bed House7, Broom Grove, Knebworth, SG3 6BZ7, Broom Grove, Knebworth, SG3 6BZ
• Sold Nov 2019£365,000 | 3 Bed House48, Hornbeam Spring, Knebworth, SG3 6BE48, Hornbeam Spring, Knebworth, SG3 6BE
• Sold Nov 2018£488,000 | 4 Bed House23, Stockens Dell, Knebworth, SG3 6BG23, Stockens Dell, Knebworth, SG3 6BG
• Sold Sep 2017£420,000 | 4 Bed House19, Stockens Dell, Knebworth, SG3 6BG19, Stockens Dell, Knebworth, SG3 6BG
• Sold Jun 2017£445,000 | 3 Bed House28, Stockens Dell, Knebworth, SG3 6BG28, Stockens Dell, Knebworth, SG3 6BG
• Sold Jan 2017£402,200 | 3 Bed House14, Stockens Dell, Knebworth, SG3 6BG14, Stockens Dell, Knebworth, SG3 6BG
• Sold Dec 2016£425,000 | 3 Bed House34, Hornbeam Spring, Knebworth, SG3 6BE34, Hornbeam Spring, Knebworth, SG3 6BE
• Sold May 2014£325,000 | 3 Bed House26, Stockens Dell, Knebworth, SG3 6BG26, Stockens Dell, Knebworth, SG3 6BG

Of the 50 addresses on Hornbeam Spring, Knebworth, SG3, 40, Hornbeam Spring, Knebworth comes out as the 9th largest and the 9th most expensive in our analysis of the public data.

It is also £125k more expensive than the average property across the SG3 district.

• Knebworth Primary and Nursery School

  400 m away
• St Michael's Woolmer Green CofE VA Primary School

  1.5 km away
• All Saints Church of England Voluntary Aided Primary School, Datchworth

  1.9 km away

• Barnwell School

  3.1 km away
• Marriotts School

  4.5 km away
• Monk's Walk School

  5.1 km away

• Knebworth

  |

  400 m away
• Stevenage

  |

  4.4 km away
• Welwyn North

  |

  4.5 km away

The flood risk here is rated Very Low, based on Environment Agency data.