11A, St. Johns Close, Welwyn occupies a 1,139 m² plot as recorded by HM Land Registry.

All 16 other houses in this postcode have recorded plot sizes, and this one ranks as the 4th largest.

11A, St. Johns Close, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 Oct 2014.

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

11A, St. Johns Close, Welwyn last changed hands on 9th February 2021, selling for £898,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has risen by 10.2% since February 2021.

• Sold Feb 2021£898,000
• Sold Aug 2015£723,000
• Sold Nov 1996£213,500

Land Registry records and our Estate Agent network show 123 sales of comparable properties within 1.3 kilometres of 11A, St. Johns Close, Welwyn since 2017.

Most recently, 6, Blakes Way, Welwyn, AL6 9RE, a freehold house, sold at £782,500 on the 15th October 2025.

Read more about house prices in AL6.

• Sold Oct 2025£782,500 | 4 Bed House6, Blakes Way, Welwyn, AL6 9RE6, Blakes Way, Welwyn, AL6 9RE
• Sold Oct 2025£900,000 | 5 Bed House12, Roman Way, Welwyn, AL6 9RJ12, Roman Way, Welwyn, AL6 9RJ
• Sold Aug 2024£980,000 | 4 Bed House24, Carleton Rise, Welwyn, AL6 9RF24, Carleton Rise, Welwyn, AL6 9RF
• Sold Jun 2024£997,500 | 5 Bed House31, Blakes Way, Welwyn, AL6 9RE31, Blakes Way, Welwyn, AL6 9RE
• Sold Jan 2024£745,000 | 4 Bed House60, Carleton Rise, Welwyn, AL6 9RG60, Carleton Rise, Welwyn, AL6 9RG
• Sold Oct 2023£995,000 | 5 Bed House5, Dewars Close, Welwyn, AL6 9RR5, Dewars Close, Welwyn, AL6 9RR
• Sold Oct 2023£947,500 | 5 Bed House16, Blakes Way, Welwyn, AL6 9RE16, Blakes Way, Welwyn, AL6 9RE
• Sold Sep 2023£720,000 | 4 Bed House20, Kindersley Close, Welwyn, AL6 9RN20, Kindersley Close, Welwyn, AL6 9RN
• Sold May 2023£1,025,000 | 4 Bed House7A, Wendover Drive, Welwyn, AL6 9LT7A, Wendover Drive, Welwyn, AL6 9LT
• Sold Nov 2022£1,020,000 | 4 Bed House7, Wendover Drive, Welwyn, AL6 9LT7, Wendover Drive, Welwyn, AL6 9LT
• Sold Jun 2021£799,000 | 4 Bed House1, North Ride, Welwyn, AL6 9RD1, North Ride, Welwyn, AL6 9RD
• Sold May 2021£816,000 | 4 Bed House15, St. Johns Close, Welwyn, AL6 9RB15, St. Johns Close, Welwyn, AL6 9RB
• Sold Mar 2021£950,000 | 5 Bed House4A, Wendover Drive, Welwyn, AL6 9LT4A, Wendover Drive, Welwyn, AL6 9LT
• Sold Feb 2021£840,000 | 5 Bed House27, Blakes Way, Welwyn, AL6 9RE27, Blakes Way, Welwyn, AL6 9RE
• Sold Jan 2021£799,000 | 4 Bed House11, Carleton Rise, Welwyn, AL6 9RP11, Carleton Rise, Welwyn, AL6 9RP
• Sold Sep 2020£795,000 | 4 Bed House7, St. Johns Close, Welwyn, AL6 9RB7, St. Johns Close, Welwyn, AL6 9RB
• Sold Jun 2020£730,000 | 4 Bed House2, St. Johns Close, Welwyn, AL6 9RB2, St. Johns Close, Welwyn, AL6 9RB
• Sold Aug 2019£825,000 | 5 Bed House2, North Ride, Welwyn, AL6 9RD2, North Ride, Welwyn, AL6 9RD
• Sold Sep 2018£830,000 | 5 Bed House5, Cylers Thicket, Welwyn, AL6 9RS5, Cylers Thicket, Welwyn, AL6 9RS
• Sold Aug 2017£770,000 | 5 Bed House14, Blakes Way, Welwyn, AL6 9RE14, Blakes Way, Welwyn, AL6 9RE

Agents in our network have reported 1 letting within 1.3 kilometres of 11A, St. Johns Close, Welwyn across the last 2 years.

The newest of these is 5, Wilga Road, Welwyn, AL6 9PT, a freehold house let by Collinson Hall in November 2023.

• 
  Let agreed Nov 2023£ Undisclosed | 3 Bed House5, Wilga Road, Welwyn, AL6 9PT5, Wilga Road, Welwyn, AL6 9PT

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Our analysis of the public data ranks 11A, St. Johns Close, Welwyn as the 2nd largest and the 2nd most expensive of the 16 addresses on St. Johns Close, Welwyn, AL6.

Against the AL6 postcode district average, it is £130k more expensive than the typical property.

• Welwyn St Mary's Church of England Voluntary Aided Primary School

  1.1 km away
• Oaklands Primary School

  1.2 km away
• Homerswood Primary and Nursery School

  2.1 km away

• Monk's Walk School

  1.7 km away
• Ridgeway Academy

  4.3 km away
• Stanborough School

  5.0 km away

• Welwyn North

  |

  1.8 km away
• Welwyn Garden City

  |

  3.8 km away
• Knebworth

  |

  3.9 km away

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