Our Data Sources
29, The Avenue, Welwyn has 21 entries in the Land Registry , most recently in June 2016 and a single entry in the EPC database dated February 2026.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 29, The Avenue, Welwyn would be worth £1,609,552, with a potential rental value of £4,689 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £1,425,603, with a rental value of £4,153 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
29, The Avenue, Welwyn occupies a 1,778 m2 plot as recorded by HM Land Registry.
All 18 other houses in this postcode have recorded plot sizes, and this one ranks as the 11th largest.
Energy Efficiency
29, The Avenue, Welwyn has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Feb 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
29, The Avenue, Welwyn last changed hands on 30th June 2016, selling for £790,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 47.0% since June 2016.
- Sold Jun 2016£790,000
- Sold Dec 2000£380,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 17 sales of comparable properties within 1.4 kilometres of 29, The Avenue, Welwyn across the last 2 years.
Most recently, Kilbys House, Danesbury Park Road, Welwyn, AL6 9SF, a freehold house, sold at £1,560,000 on the 21st June 2023.
Read more about house prices in AL6.
- Sold Jun 2023£1,560,000 | 5 Bed HouseKilbys House, Danesbury Park Road, Welwyn, AL6 9SFKilbys House, Danesbury Park Road, Welwyn, AL6 9SF
- Sold Mar 2023£1,350,000 | 5 Bed House1A, Canonsfield, Welwyn, AL6 0QB1A, Canonsfield, Welwyn, AL6 0QB
- Sold Jun 2016£1,175,000 | 5 Bed House12, Oaklea Wood, Welwyn, AL6 0PJ12, Oaklea Wood, Welwyn, AL6 0PJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 29, The Avenue, Welwyn as the largest and the most expensive of the 43 addresses on The Avenue, Welwyn, AL6.
Against the AL6 postcode district average, it is £732k more expensive than the typical property.
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Schools Nearby
- Oaklands Primary School500 m away
- St Michael's Woolmer Green CofE VA Primary School1.8 km away
- Welwyn St Mary's Church of England Voluntary Aided Primary School1.9 km away
- Monk's Walk School2.5 km away
- Ridgeway Academy4.8 km away
- Barnwell School5.7 km away
More reading links
Public Transport Nearby
- Welwyn North|2.2 km away
- Knebworth|3.0 km away
- Welwyn Garden City|4.6 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
