HM Land Registry records the plot of land for 21, Canonsfield, Welwyn as measuring 885 m².

That makes it the 5th largest plot in the postcode, where 11 of the 15 other houses have recorded plot data.

21, Canonsfield, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 26 Jun 2019.

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 21, Canonsfield, Welwyn completed on 7th January 2022 at £1,050,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 26.0% over the period since January 2022.

• Sold Jan 2022£1,050,000
• Sold Dec 2003£398,000

Since 2016 94 properties similar to 21, Canonsfield, Welwyn have sold within a radius of 1.3 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 31st March 2026, was 12, The Drive, Welwyn, AL6 0TR, a freehold house which sold for £1,200,000.

Read more about house prices in AL6.

• Sold Mar 2026£1,200,000 | 5 Bed House12, The Drive, Welwyn, AL6 0TR12, The Drive, Welwyn, AL6 0TR
• Sold Jan 2026£1,150,000 | 5 Bed House15, Marlborough Close, Welwyn, AL6 0UG15, Marlborough Close, Welwyn, AL6 0UG
• Sold Nov 2025£1,190,000 | 5 Bed House2A, Bracken Lane, Welwyn, AL6 0RB2A, Bracken Lane, Welwyn, AL6 0RB
• Sold Jul 2025£1,190,000 | 5 Bed House6, Firway, Welwyn, AL6 0RD6, Firway, Welwyn, AL6 0RD
• Sold Mar 2025£950,000 | 5 Bed HouseChestnut Lodge, Chestnut Walk, Welwyn, AL6 0SBChestnut Lodge, Chestnut Walk, Welwyn, AL6 0SB
• Sold Nov 2023£1,240,000 | 5 Bed House14, Dolesbury Drive, Welwyn, AL6 0QF14, Dolesbury Drive, Welwyn, AL6 0QF
• Sold Sep 2023£1,230,000 | 5 Bed House12, Firway, Welwyn, AL6 0RD12, Firway, Welwyn, AL6 0RD
• Sold Jul 2023£925,000 | 5 Bed House8, Briary Wood End, Welwyn, AL6 0TD8, Briary Wood End, Welwyn, AL6 0TD
• Sold Jun 2023£1,400,000 | 5 Bed House12A, Firway, Welwyn, AL6 0RD12A, Firway, Welwyn, AL6 0RD
• Sold Jun 2021£915,000 | 5 Bed House21D, Canonsfield, Welwyn, AL6 0QB21D, Canonsfield, Welwyn, AL6 0QB
• Sold Jun 2021£1,050,000 | 5 Bed House9, Heathbrow Road, Welwyn, AL6 0QG9, Heathbrow Road, Welwyn, AL6 0QG
• Sold Mar 2021£875,000 | 5 Bed House1B, Firway, Welwyn, AL6 0RD1B, Firway, Welwyn, AL6 0RD
• Sold Feb 2021£1,175,000 | 5 Bed House15, Robbery Bottom Lane, Welwyn, AL6 0UL15, Robbery Bottom Lane, Welwyn, AL6 0UL
• Sold Dec 2020£1,150,000 | 5 Bed House21, Bracken Lane, Welwyn, AL6 0RB21, Bracken Lane, Welwyn, AL6 0RB
• Sold May 2020£875,000 | 5 Bed House26, Robbery Bottom Lane, Welwyn, AL6 0UW26, Robbery Bottom Lane, Welwyn, AL6 0UW
• Sold Jan 2020£925,000 | 5 Bed House19A, Briary Wood Lane, Welwyn, AL6 0TE19A, Briary Wood Lane, Welwyn, AL6 0TE
• Sold Dec 2018£750,000 | 5 Bed House1A, Chestnut Walk, Welwyn, AL6 0SB1A, Chestnut Walk, Welwyn, AL6 0SB
• Sold Jul 2016£788,000 | 5 Bed House11A, Briary Wood Lane, Welwyn, AL6 0TE11A, Briary Wood Lane, Welwyn, AL6 0TE
• Sold Jun 2016£740,000 | 5 Bed House14, Dudley Hill Close, Welwyn, AL6 0QQ14, Dudley Hill Close, Welwyn, AL6 0QQ
• Sold Jun 2016£750,000 | 5 Bed House10, Briary Wood End, Welwyn, AL6 0TD10, Briary Wood End, Welwyn, AL6 0TD

Of the 30 addresses on Canonsfield, Welwyn, AL6, 21, Canonsfield, Welwyn comes out as the 6th largest and the 12th most expensive in our analysis of the public data.

It is also £289k more expensive than the average property across the AL6 district.

• Oaklands Primary School

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

  1.1 km away
• Knebworth Primary and Nursery School

  2.3 km away

• Monk's Walk School

  3.0 km away
• Ridgeway Academy

  4.9 km away
• Barnwell School

  5.2 km away

• Welwyn North

  |

  2.4 km away
• Knebworth

  |

  2.5 km away
• Welwyn Garden City

  |

  4.9 km away

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