Our Data Sources
24, Mardley Avenue, Welwyn has 31 entries in the Land Registry , most recently in August 2013 and a single entry in the EPC database dated April 2013.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 24, Mardley Avenue, Welwyn, we estimate a market value of £1,051,868 and a rental value of £3,043 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £931,655 and £2,695 per month respectively.
Plot Size
HM Land Registry records the plot of land for 24, Mardley Avenue, Welwyn as measuring 538 m2.
That makes it the 3rd largest plot in the postcode, where all 3 other houses have recorded plot data.
Energy Efficiency
24, Mardley Avenue, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Apr 2013.
The property is not connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 24, Mardley Avenue, Welwyn completed on 16th August 2013 at £490,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 68.1% over the period since August 2013.
- Sold Aug 2013£490,000
- Sold Jan 2000£165,000
- Sold Sep 1999£99,537
Similar Properties Sold Nearby
Over the past 2 years 79 properties similar to 24, Mardley 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 12th December 2025, was 1, Rosecroft Lane, Welwyn, AL6 0UB, a freehold house which sold for £775,000.
Read more about house prices in AL6.
- Sold Dec 2025£775,000 | 4 Bed House1, Rosecroft Lane, Welwyn, AL6 0UB1, Rosecroft Lane, Welwyn, AL6 0UB
- Sold Mar 2025£922,500 | 4 Bed House5, Chestnut Walk, Welwyn, AL6 0SB5, Chestnut Walk, Welwyn, AL6 0SB
- Sold Oct 2022£1,000,000 | 4 Bed House28, Mardley Avenue, Welwyn, AL6 0TZ28, Mardley Avenue, Welwyn, AL6 0TZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 30 addresses on Mardley Avenue, Welwyn, AL6, 24, Mardley Avenue, Welwyn comes out as the 13th largest and the 4th most expensive in our analysis of the public data.
It is also £201k more expensive than the average property across the AL6 district.
More reading links
Schools Nearby
- St Michael's Woolmer Green CofE VA Primary School600 m away
- Oaklands Primary School900 m away
- All Saints Church of England Voluntary Aided Primary School, Datchworth2.0 km away
- Monk's Walk School3.4 km away
- Ridgeway Academy4.9 km away
- Barnwell School5.0 km away
More reading links
Public Transport Nearby
- Knebworth|2.4 km away
- Welwyn North|2.5 km away
- Watton-at-Stone|4.6 km away
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
