HM Land Registry records the plot of land for 1, Dewars Close, Welwyn as measuring 740 m².

That makes it the 5th largest plot in the postcode, where all 6 other houses have recorded plot data.

1, Dewars Close, Welwyn has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 16 Nov 2025.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and underfloor heating (mains gas).

The most recent sale of 1, Dewars Close, Welwyn completed on 10th March 2023 at £760,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 7.6% over the period since March 2023.

• Sold Mar 2023£760,000

Since 2007 1013 properties have sold within 1.2 kilometres of 1, Dewars Close, Welwyn, per the Land Registry and our network of Estate Agents.

The latest, on the 12th January 2026, was 6, North Ride, Welwyn, AL6 9RD, a freehold house which sold for £1,075,000.

Read more about house prices in AL6.

• Sold Jan 2026£1,075,000 | 5 Bed House6, North Ride, Welwyn, AL6 9RD6, North Ride, Welwyn, AL6 9RD
• Sold Oct 2025£782,500 | 4 Bed House6, Blakes Way, Welwyn, AL6 9RE6, Blakes Way, Welwyn, AL6 9RE
• Sold Jun 2024£757,500 | 4 Bed House27, Carleton Rise, Welwyn, AL6 9RP27, Carleton Rise, Welwyn, AL6 9RP
• Sold Oct 2023£995,000 | 5 Bed House5, Dewars Close, Welwyn, AL6 9RR5, Dewars Close, Welwyn, AL6 9RR
• Sold Apr 2023£790,000 | 4 Bed House3, Cylers Thicket, Welwyn, AL6 9RS3, Cylers Thicket, Welwyn, AL6 9RS
• Sold Sep 2021£810,000 | 4 Bed House13, Carleton Rise, Welwyn, AL6 9RP13, Carleton Rise, Welwyn, AL6 9RP
• Sold Jun 2021£799,000 | 4 Bed House1, North Ride, Welwyn, AL6 9RD1, North Ride, Welwyn, AL6 9RD
• Sold Jan 2021£799,000 | 4 Bed House11, Carleton Rise, Welwyn, AL6 9RP11, Carleton Rise, Welwyn, AL6 9RP
• Sold Jul 2020£690,000 | 4 Bed House12, Grange Hill, Welwyn, AL6 9RW12, Grange Hill, Welwyn, AL6 9RW
• Sold Nov 2019£675,000 | 4 Bed House12, Carleton Rise, Welwyn, AL6 9RA12, Carleton Rise, Welwyn, AL6 9RA
• Sold Aug 2019£825,000 | 5 Bed House2, North Ride, Welwyn, AL6 9RD2, North Ride, Welwyn, AL6 9RD
• Sold Oct 2018£650,000 | 4 Bed House6, Dewars Close, Welwyn, AL6 9RR6, Dewars Close, Welwyn, AL6 9RR
• Sold Sep 2018£830,000 | 5 Bed House5, Cylers Thicket, Welwyn, AL6 9RS5, Cylers Thicket, Welwyn, AL6 9RS
• Sold Mar 2018£700,000 | 4 Bed House17, Carleton Rise, Welwyn, AL6 9RP17, Carleton Rise, Welwyn, AL6 9RP
• Sold Aug 2017£859,995 | 5 Bed House4, Cylers Thicket, Welwyn, AL6 9RS4, Cylers Thicket, Welwyn, AL6 9RS
• Sold Aug 2016£636,000 | 4 Bed House2, Cylers Thicket, Welwyn, AL6 9RS2, Cylers Thicket, Welwyn, AL6 9RS
• Sold Apr 2009£482,500 | 4 Bed House1, Cylers Thicket, Welwyn, AL6 9RS1, Cylers Thicket, Welwyn, AL6 9RS
• Sold Oct 2007£595,000 | 4 Bed House4, Dewars Close, Welwyn, AL6 9RR4, Dewars Close, Welwyn, AL6 9RR
• Sold Apr 2007£450,000 | 4 Bed House2, Grange Hill, Welwyn, AL6 9RW2, Grange Hill, Welwyn, AL6 9RW
• Sold Feb 2007£460,000 | 4 Bed House25, Carleton Rise, Welwyn, AL6 9RP25, Carleton Rise, Welwyn, AL6 9RP

Over the past 2 years our Estate Agent network has recorded 1 let within 1.2 kilometres of 1, Dewars Close, Welwyn.

The latest, in November 2023, was 5, Wilga Road, Welwyn, AL6 9PT, a freehold house let by Collinson Hall.

• 
  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.

Of the 6 addresses on Dewars Close, Welwyn, AL6, 1, Dewars Close, Welwyn comes out as the largest and the 4th most expensive in our analysis of the public data.

It is also £39k less expensive than the average property across the AL6 district.

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

  900 m away
• Oaklands Primary School

  1.3 km away
• Homerswood Primary and Nursery School

  2.1 km away

• Monk's Walk School

  1.6 km away
• Ridgeway Academy

  4.3 km away
• Stanborough School

  4.9 km away

• Welwyn North

  |

  1.9 km away
• Welwyn Garden City

  |

  3.8 km away
• Knebworth

  |

  4.0 km away

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