40, Canonsfield Road, Welwyn occupies a 1,197 m² plot as recorded by HM Land Registry.

All 9 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.

40, Canonsfield Road, Welwyn has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 08 Aug 2025.

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

40, Canonsfield Road, Welwyn last changed hands on 26th March 2001, selling for £290,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

• Sold Mar 2001£290,000
• Sold Apr 1995£132,000

Land Registry records and our Estate Agent network show 89 sales of comparable properties within 1.5 kilometres of 40, Canonsfield Road, Welwyn since 2009.

Most recently, 50, Robbery Bottom Lane, Welwyn, AL6 0UN, a freehold house, sold at £658,000 on the 9th January 2026.

Read more about house prices in AL6.

• Sold Jan 2026£658,000 | 4 Bed House50, Robbery Bottom Lane, Welwyn, AL6 0UN50, Robbery Bottom Lane, Welwyn, AL6 0UN
• Sold Nov 2025£785,000 | 4 Bed House14, Birch Grove, Welwyn, AL6 0QP14, Birch Grove, Welwyn, AL6 0QP
• Sold Oct 2025£715,000 | 4 Bed House31, Hillside Way, Welwyn, AL6 0TY31, Hillside Way, Welwyn, AL6 0TY
• Sold Jul 2024£670,000 | 4 Bed House10, Lower Mardley Hill, Welwyn, AL6 0SQ10, Lower Mardley Hill, Welwyn, AL6 0SQ
• Sold May 2024£720,000 | 4 Bed House27, Marlborough Close, Welwyn, AL6 0UG27, Marlborough Close, Welwyn, AL6 0UG
• Sold Jan 2024£655,000 | 4 Bed House12, Foxglove Way, Welwyn, AL6 0PQ12, Foxglove Way, Welwyn, AL6 0PQ
• Sold Jan 2024£700,000 | 4 Bed House3, Leonards Close, Welwyn, AL6 0QJ3, Leonards Close, Welwyn, AL6 0QJ
• Sold Oct 2023£637,500 | 4 Bed House4, Whetstone Court, Welwyn, AL6 0QY4, Whetstone Court, Welwyn, AL6 0QY
• Sold Mar 2023£680,000 | 4 Bed House22, Oaklea, Welwyn, AL6 0PU22, Oaklea, Welwyn, AL6 0PU
• Sold Dec 2019£627,500 | 4 Bed House25, The Chase, Welwyn, AL6 0QT25, The Chase, Welwyn, AL6 0QT
• Sold Oct 2019£695,000 | 4 Bed House16, Canonsfield, Welwyn, AL6 0QD16, Canonsfield, Welwyn, AL6 0QD
• Sold Feb 2018£625,000 | 4 Bed House14, Canonsfield, Welwyn, AL6 0QD14, Canonsfield, Welwyn, AL6 0QD
• Sold Nov 2017£625,000 | 4 Bed House7, Whetstone Close, Welwyn, AL6 0QW7, Whetstone Close, Welwyn, AL6 0QW
• Sold Sep 2017£735,000 | 4 Bed House1, Leonards Close, Welwyn, AL6 0QJ1, Leonards Close, Welwyn, AL6 0QJ
• Sold Jul 2017£630,000 | 4 Bed House7, Dudley Hill Close, Welwyn, AL6 0QQ7, Dudley Hill Close, Welwyn, AL6 0QQ
• Sold Apr 2017£505,000 | 4 Bed House24, Foxglove Way, Welwyn, AL6 0PQ24, Foxglove Way, Welwyn, AL6 0PQ
• Sold Dec 2014£525,000 | 4 Bed House4, Leonards Close, Welwyn, AL6 0QJ4, Leonards Close, Welwyn, AL6 0QJ
• Sold Aug 2014£580,000 | 4 Bed House2, Leonards Close, Welwyn, AL6 0QJ2, Leonards Close, Welwyn, AL6 0QJ
• Sold Aug 2011£500,000 | 4 Bed House65, Canonsfield Road, Welwyn, AL6 0QA65, Canonsfield Road, Welwyn, AL6 0QA
• Sold Jul 2009£390,000 | 4 Bed House5, Whetstone Close, Welwyn, AL6 0QW5, Whetstone Close, Welwyn, AL6 0QW

Our analysis of the public data ranks 40, Canonsfield Road, Welwyn as the 23rd largest and the 41st most expensive of the 72 addresses on Canonsfield Road, Welwyn, AL6.

Against the AL6 postcode district average, it is £108k less expensive than the typical property.

• Oaklands Primary School

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

  1.3 km away
• Knebworth Primary and Nursery School

  2.4 km away

• Monk's Walk School

  3.0 km away
• Ridgeway Academy

  5.0 km away
• Barnwell School

  5.2 km away

• Welwyn North

  |

  2.5 km away
• Knebworth

  |

  2.5 km away
• Welwyn Garden City

  |

  5.0 km away

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