According to data from HM Land Registry, 17, High Street, Welwyn sits on a plot of 68 m².

We have plot size data on 2 out of 3 other houses in the postcode and 17, High Street, Welwyn sits on the 3rd largest plot.

17, High Street, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Apr 2025.

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

According to HM Land Registry, 17, High Street, Welwyn was last sold on 30th June 2021 for £465,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since June 2021, the market for similar properties has risen by 12.8%.

According to the Land Registry and our network of Estate Agents, there have been 131 sales of properties similar to 17, High Street, Welwyn within a radius of 1.3 kilometres since 2009.

The most recent example is 22, Broomfield Road, Welwyn, AL6 9DW, a freehold house which sold for £426,000 on the 19th December 2025.

Read more about house prices in AL6.

• Sold Dec 2025£426,000 | 3 Bed House22, Broomfield Road, Welwyn, AL6 9DW22, Broomfield Road, Welwyn, AL6 9DW
• Sold Nov 2025£518,000 | 3 Bed House12, The Crescent, Welwyn, AL6 9JQ12, The Crescent, Welwyn, AL6 9JQ
• Sold Sep 2025£410,409 | 3 Bed House48, Broomfield Road, Welwyn, AL6 9DW48, Broomfield Road, Welwyn, AL6 9DW
• Sold Mar 2025£410,000 | 3 Bed House27, Broomfield Road, Welwyn, AL6 9DL27, Broomfield Road, Welwyn, AL6 9DL
• Sold Jan 2025£455,000 | 3 Bed House6, Parkside, Welwyn, AL6 9DQ6, Parkside, Welwyn, AL6 9DQ
• Sold Oct 2024£431,795 | 3 Bed House3, Hobbs Hill, Welwyn, AL6 9DY3, Hobbs Hill, Welwyn, AL6 9DY
• Sold Oct 2024£433,500 | 3 Bed House37, Parkside, Welwyn, AL6 9DQ37, Parkside, Welwyn, AL6 9DQ
• Sold Oct 2024£460,000 | 3 Bed House17, Becket Gardens, Welwyn, AL6 9JE17, Becket Gardens, Welwyn, AL6 9JE
• Sold Oct 2023£550,000 | 3 Bed House8, School Lane, Welwyn, AL6 9PH8, School Lane, Welwyn, AL6 9PH
• Sold Sep 2023£410,000 | 3 Bed House38, Parkside, Welwyn, AL6 9DQ38, Parkside, Welwyn, AL6 9DQ
• Sold Jul 2022£450,000 | 3 Bed House8, Church Street, Welwyn, AL6 9LX8, Church Street, Welwyn, AL6 9LX
• Sold Jan 2020£495,000 | 3 Bed House13, Elmoor Avenue, Welwyn, AL6 9PG13, Elmoor Avenue, Welwyn, AL6 9PG
• Sold Sep 2019£277,500 | 3 Bed House36, Mimram Road, Welwyn, AL6 9HA36, Mimram Road, Welwyn, AL6 9HA
• Sold Jan 2019£420,000 | 3 Bed House32, Mill Lane, Welwyn, AL6 9ET32, Mill Lane, Welwyn, AL6 9ET
• Sold Apr 2018£374,000 | 3 Bed House34, Mimram Road, Welwyn, AL6 9HA34, Mimram Road, Welwyn, AL6 9HA
• Sold Feb 2018£240,000 | 3 Bed House10, Church Street, Welwyn, AL6 9LX10, Church Street, Welwyn, AL6 9LX
• Sold Oct 2012£337,500 | 3 Bed House3, Mimram Road, Welwyn, AL6 9HA3, Mimram Road, Welwyn, AL6 9HA
• Sold Jan 2012£309,000 | 3 Bed House8, Mill Lane, Welwyn, AL6 9ET8, Mill Lane, Welwyn, AL6 9ET
• Sold Nov 2010£272,500 | 3 Bed House12, Mill Lane, Welwyn, AL6 9ET12, Mill Lane, Welwyn, AL6 9ET
• Sold Dec 2009£110,000 | 3 Bed House4, Mimram Road, Welwyn, AL6 9HA4, Mimram Road, Welwyn, AL6 9HA

Our network of Estate Agents reports 1 let of a property similar to 17, High Street, Welwyn within a radius of 1.3 kilometres over the last 2 years.

Most recently, 5, Wilga Road, Welwyn, AL6 9PT, a freehold house, was 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.

High Street, Welwyn, AL6 has a total of 31 addresses. According to our analysis of all the public data, 17, High Street, Welwyn is the 16th largest and the 14th most expensive property on the street.

When compared to the postcode district it is £318k less expensive than the average property in AL6.

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

  500 m away
• Homerswood Primary and Nursery School

  1.7 km away
• Oaklands Primary School

  1.7 km away

• Monk's Walk School

  1.2 km away
• Ridgeway Academy

  4.0 km away
• Stanborough School

  4.5 km away

• Welwyn North

  |

  1.8 km away
• Welwyn Garden City

  |

  3.4 km away
• Knebworth

  |

  4.5 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.