4, Bellamy Close, Knebworth occupies a 374 m² plot as recorded by HM Land Registry.

All 19 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.

4, Bellamy Close, Knebworth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 07 Jul 2022.

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

4, Bellamy Close, Knebworth last changed hands on 7th October 2003, selling for £295,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

Land Registry records and our Estate Agent network show 77 sales of comparable properties within 920 metres of 4, Bellamy Close, Knebworth since 2007.

Most recently, 12, Oak Tree Gardens, Knebworth, SG3 6EQ, a freehold house, sold at £700,000 on the 12th January 2026.

Read more about house prices in SG3.

• Sold Jan 2026£700,000 | 4 Bed House12, Oak Tree Gardens, Knebworth, SG3 6EQ12, Oak Tree Gardens, Knebworth, SG3 6EQ
• Sold Dec 2025£610,000 | 4 Bed House30, Pondcroft Road, Knebworth, SG3 6DB30, Pondcroft Road, Knebworth, SG3 6DB
• Sold May 2025£612,500 | 4 Bed House3 Church Place, New Close, Knebworth, SG3 6NX3 Church Place, New Close, Knebworth, SG3 6NX
• Sold Dec 2024£590,000 | 4 Bed House29, New Close, Knebworth, SG3 6NU29, New Close, Knebworth, SG3 6NU
• Sold Oct 2024£602,500 | 4 Bed House31, Lytton Fields, Knebworth, SG3 6BA31, Lytton Fields, Knebworth, SG3 6BA
• Sold Aug 2024£650,000 | 4 Bed House13, New Close, Knebworth, SG3 6NU13, New Close, Knebworth, SG3 6NU
• Sold May 2024£583,000 | 4 Bed House11, Broom Grove, Knebworth, SG3 6BZ11, Broom Grove, Knebworth, SG3 6BZ
• Sold Feb 2024£620,000 | 4 Bed House1 Church Place, New Close, Knebworth, SG3 6NX1 Church Place, New Close, Knebworth, SG3 6NX
• Sold Oct 2023£630,000 | 4 Bed House39, New Close, Knebworth, SG3 6NU39, New Close, Knebworth, SG3 6NU
• Sold Jun 2021£550,000 | 4 Bed House15, Gun Lane, Knebworth, SG3 6BH15, Gun Lane, Knebworth, SG3 6BH
• Sold May 2021£600,000 | 4 Bed House19, Broom Grove, Knebworth, SG3 6BZ19, Broom Grove, Knebworth, SG3 6BZ
• Sold May 2021£565,000 | 4 Bed House65, Pondcroft Road, Knebworth, SG3 6DE65, Pondcroft Road, Knebworth, SG3 6DE
• Sold Sep 2020£560,000 | 4 Bed House17, Bellamy Close, Knebworth, SG3 6EH17, Bellamy Close, Knebworth, SG3 6EH
• Sold Nov 2018£577,000 | 4 Bed House7, Oak Tree Gardens, Knebworth, SG3 6EQ7, Oak Tree Gardens, Knebworth, SG3 6EQ
• Sold Oct 2016£565,000 | 4 Bed House8, Oak Tree Gardens, Knebworth, SG3 6EQ8, Oak Tree Gardens, Knebworth, SG3 6EQ
• Sold Oct 2016£550,000 | 4 Bed House11, Oak Tree Gardens, Knebworth, SG3 6EQ11, Oak Tree Gardens, Knebworth, SG3 6EQ
• Sold May 2016£545,000 | 4 Bed House12, Bellamy Close, Knebworth, SG3 6EH12, Bellamy Close, Knebworth, SG3 6EH
• Sold Jan 2016£510,000 | 4 Bed House8C, Park Lane, Knebworth, SG3 6PE8C, Park Lane, Knebworth, SG3 6PE
• Sold Jul 2013£355,000 | 3 Bed House18, Bellamy Close, Knebworth, SG3 6EH18, Bellamy Close, Knebworth, SG3 6EH
• Sold May 2007£372,000 | 4 Bed House16, Bellamy Close, Knebworth, SG3 6EH16, Bellamy Close, Knebworth, SG3 6EH

Our analysis of the public data ranks 4, Bellamy Close, Knebworth as the 14th largest and the 14th most expensive of the 19 addresses on Bellamy Close, Knebworth, SG3.

Against the SG3 postcode district average, it is £273k more expensive than the typical property.

• Knebworth Primary and Nursery School

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

  1.9 km away
• St Margaret Clitherow Roman Catholic Primary School

  2.0 km away

• Barnwell School

  2.9 km away
• Marriotts School

  4.3 km away
• The Nobel School

  5.3 km away

• Knebworth

  |

  400 m away
• Stevenage

  |

  4.1 km away
• Welwyn North

  |

  4.7 km away

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