6, Constance Place, Knebworth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 17 May 2016.

The property is not connected to mains gas and has high performance glazing. It is heated using air source heat pump (underfloor, electric).

6, Constance Place, Knebworth last changed hands on 31st August 2016, selling for £399,950. The transaction was logged as a leasehold flat by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has dropped by 11.1% since August 2016.

• Sold Aug 2016£399,950

Land Registry records and our Estate Agent network show 45 sales of comparable properties within 920 metres of 6, Constance Place, Knebworth since 2016.

Most recently, 9, Lowe House, Knebworth, SG3 6EU, a leasehold flat, sold at £333,000 on the 17th December 2025.

Read more about house prices in SG3.

• Sold Dec 2025£333,000 | 3 Bed Flat9, Lowe House, Knebworth, SG3 6EU9, Lowe House, Knebworth, SG3 6EU
• Sold Jul 2025£315,000 | 2 Bed Flat10, Constance Place, Knebworth, SG3 6EE10, Constance Place, Knebworth, SG3 6EE
• Sold Dec 2024£380,000 | 3 Bed Flat40, Lowe House, Knebworth, SG3 6EU40, Lowe House, Knebworth, SG3 6EU
• Sold Aug 2024£448,500 | 3 Bed Flat47, Lowe House, Knebworth, SG3 6EU47, Lowe House, Knebworth, SG3 6EU
• Sold Jul 2024£485,000 | 3 Bed Flat21, Constance Place, Knebworth, SG3 6EE21, Constance Place, Knebworth, SG3 6EE
• Sold Jun 2024£460,500 | 3 Bed Flat38, Lowe House, Knebworth, SG3 6EU38, Lowe House, Knebworth, SG3 6EU
• Sold Jun 2024£450,000 | 3 Bed Flat5, Constance Place, Knebworth, SG3 6EE5, Constance Place, Knebworth, SG3 6EE
• Sold Apr 2024£380,000 | 3 Bed Flat19, Lowe House, Knebworth, SG3 6EU19, Lowe House, Knebworth, SG3 6EU
• Sold Apr 2024£420,000 | 3 Bed Flat3, Lowe House, Knebworth, SG3 6EU3, Lowe House, Knebworth, SG3 6EU
• Sold Nov 2023£427,900 | 3 Bed Flat22, Lowe House, Knebworth, SG3 6EU22, Lowe House, Knebworth, SG3 6EU
• Sold Oct 2023£450,000 | 3 Bed Flat45, Lowe House, Knebworth, SG3 6EU45, Lowe House, Knebworth, SG3 6EU
• Sold Nov 2022£497,000 | 3 Bed Flat29, Lowe House, Knebworth, SG3 6EU29, Lowe House, Knebworth, SG3 6EU
• Sold Nov 2022£465,000 | 3 Bed Flat20, Constance Place, Knebworth, SG3 6EE20, Constance Place, Knebworth, SG3 6EE
• Sold Feb 2021£385,000 | 3 Bed Flat12, Constance Place, Knebworth, SG3 6EE12, Constance Place, Knebworth, SG3 6EE
• Sold Aug 2020£407,500 | 3 Bed Flat3, Constance Place, Knebworth, SG3 6EE3, Constance Place, Knebworth, SG3 6EE
• Sold Sep 2017£390,000 | 3 Bed Flat11, Constance Place, Knebworth, SG3 6EE11, Constance Place, Knebworth, SG3 6EE
• Sold Aug 2016£399,950 | 3 Bed Flat15, Constance Place, Knebworth, SG3 6EE15, Constance Place, Knebworth, SG3 6EE
• Sold Aug 2016£435,950 | 3 Bed Flat26, Constance Place, Knebworth, SG3 6EE26, Constance Place, Knebworth, SG3 6EE
• Sold Aug 2016£424,950 | 3 Bed Flat25, Constance Place, Knebworth, SG3 6EE25, Constance Place, Knebworth, SG3 6EE
• Sold May 2016£430,713 | 3 Bed Flat16, Constance Place, Knebworth, SG3 6EE16, Constance Place, Knebworth, SG3 6EE

Our analysis of the public data ranks 6, Constance Place, Knebworth as the 4th largest and the 4th most expensive of the 26 addresses on Constance Place, Knebworth, SG3.

Against the SG3 postcode district average, it is £140k less expensive than the typical property.

• Knebworth Primary and Nursery School

  100 m away
• All Saints Church of England Voluntary Aided Primary School, Datchworth

  1.5 km away
• St Michael's Woolmer Green CofE VA Primary School

  1.5 km away

• Barnwell School

  2.9 km away
• Marriotts School

  4.4 km away
• Monk's Walk School

  5.3 km away

• Knebworth

  |

  500 m away
• Watton-at-Stone

  |

  4.4 km away
• Stevenage

  |

  4.5 km away

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