20A, The Avenue
20A, The Avenue
Description & Estimates







20A, The Avenue, Welwyn is described in the public record as a modern house with 1,937 ft2 of internal area, sitting on a 755 m2 plot.
Locally, houses of this size normally have 4 bedrooms with a garden.
Our estimate of the sale value of 20A, The Avenue, Welwyn is £985,335 and its rental estimate is £2,939 per month, given the available information and assuming reasonable condition.
The Avenue, Welwyn, AL6 falls within the AL6 postal district, in the borough of Welwyn Hatfield.
Our Data Sources
20A, The Avenue, Welwyn has no records in the the Land Registry and a single entry in the EPC database dated March 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 20A, The Avenue, Welwyn, we estimate a market value of £1,034,602 and a rental value of £3,086 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £916,362 and £2,733 per month respectively.
Recent Market Change
Over the last year, 20A, The Avenue, Welwyn has seen its estimated sale value fall by £11,381 (1.2%) and its estimated rental value move up by £96 per month (3.3%). This results in an estimated gross rental yield of 3.6%.
Plot Size
HM Land Registry records the plot of land for 20A, The Avenue, Welwyn as measuring 755 m2.
That makes it the 14th largest plot in the postcode, where all 16 other houses have recorded plot data.
Energy Efficiency
20A, The Avenue, Welwyn has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 10 Mar 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and underfloor heating, mains gas, Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 20A, The Avenue, Welwyn have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 8th October 2025, was 28, The Avenue, Welwyn, AL6 0PP, a freehold house which sold for £1,015,000.
Read more about house prices in AL6.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 43 addresses on The Avenue, Welwyn, AL6, 20A, The Avenue, Welwyn comes out as the 23rd largest and the 17th most expensive in our analysis of the public data.
It is also £198k more expensive than the average property across the AL6 district.
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Schools Nearby
- 500mOaklands Primary School
- 1.8kmSt Michael's Woolmer Green CofE VA Primary School
- 2.0kmWelwyn St Mary's Church of England Voluntary Aided Primary School
- 2.6kmMonk's Walk School
- 4.8kmRidgeway Academy
- 5.6kmBarnwell School
More reading links
Public Transport Nearby
From 20A, The Avenue, Welwyn, the nearest station is Welwyn North, 2.3 kilometres away.
- 2.3kmWelwyn North
- 2.9kmKnebworth
- 4.6kmWelwyn Garden City
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.

