Our Data Sources
8, Mardley Hill, Welwyn has a single entry in the Land Registry from December 2012 and a single entry in the EPC database dated July 2012.
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 8, Mardley Hill, Welwyn, we estimate a market value of £858,592 and a rental value of £3,007 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £760,468 and £2,663 per month respectively.
Plot Size
HM Land Registry records the plot of land for 8, Mardley Hill, Welwyn as measuring 994 m2.
That makes it the 3rd largest plot in the postcode, where all 5 other houses have recorded plot data.
Energy Efficiency
8, Mardley Hill, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 25 Jul 2012.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 8, Mardley Hill, Welwyn completed on 5th December 2012 at £527,500 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 74.3% over the period since December 2012.
- Sold Dec 2012£527,500
Similar Properties Sold Nearby
Over the past 2 years 189 properties similar to 8, Mardley Hill, Welwyn have sold within a radius of 1.2 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 5th November 2025, was 4A, Heathbrow Road, Welwyn, AL6 0QG, a freehold house which sold for £747,218.
Read more about house prices in AL6.
- Sold Nov 2025£747,218 | 4 Bed House4A, Heathbrow Road, Welwyn, AL6 0QG4A, Heathbrow Road, Welwyn, AL6 0QG
- Sold Jul 2024£810,000 | 4 Bed House24, Canonsfield, Welwyn, AL6 0QD24, Canonsfield, Welwyn, AL6 0QD
- Sold May 2024£720,000 | 4 Bed House27, Marlborough Close, Welwyn, AL6 0UG27, Marlborough Close, Welwyn, AL6 0UG
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 39 addresses on Mardley Hill, Welwyn, AL6, 8, Mardley Hill, Welwyn comes out as the 20th largest and the 23rd most expensive in our analysis of the public data.
It is also £17k more expensive than the average property across the AL6 district.
More reading links
Schools Nearby
- St Michael's Woolmer Green CofE VA Primary School500 m away
- Oaklands Primary School1.0 km away
- Knebworth Primary and Nursery School1.9 km away
- Monk's Walk School3.5 km away
- Barnwell School4.8 km away
- Ridgeway Academy5.1 km away
More reading links
Public Transport Nearby
- Knebworth|2.1 km away
- Welwyn North|2.7 km away
- Watton-at-Stone|4.7 km away
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












