Our Data Sources
19, Mardley Hill, Welwyn has a single entry in the Land Registry from June 2013 and a single entry in the EPC database dated September 2011.
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 19, Mardley Hill, Welwyn, we estimate a market value of £685,106 and a rental value of £2,473 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £606,808 and £2,191 per month respectively.
Plot Size
HM Land Registry records the plot of land for 19, Mardley Hill, Welwyn as measuring 1,178 m2.
That makes it the 3rd largest plot in the postcode, where all 9 other houses have recorded plot data.
Energy Efficiency
19, Mardley Hill, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 19 Sep 2011.
The property is 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 19, Mardley Hill, Welwyn completed on 14th June 2013 at £490,000 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 68.5% over the period since June 2013.
- Sold Jun 2013£490,000
Similar Properties Sold Nearby
Over the past 2 years 28 properties similar to 19, 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 12th February 2026, was Briar Cottage, Pottersheath Road, Welwyn, AL6 9SU, a freehold house which sold for £655,000.
Read more about house prices in AL6.
- Sold Feb 2026£655,000 | 3 Bed HouseBriar Cottage, Pottersheath Road, Welwyn, AL6 9SUBriar Cottage, Pottersheath Road, Welwyn, AL6 9SU
- Sold Jun 2021£638,500 | 3 Bed House8A, Rosecroft Lane, Welwyn, AL6 0UB8A, Rosecroft Lane, Welwyn, AL6 0UB
- Sold Dec 2011£342,500 | 3 Bed House12, Rosecroft Lane, Welwyn, AL6 0UB12, Rosecroft Lane, Welwyn, AL6 0UB
•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, 19, Mardley Hill, Welwyn comes out as the 36th largest and the 31st most expensive in our analysis of the public data.
It is also £148k less expensive than the average property across the AL6 district.
More reading links
Schools Nearby
- Oaklands Primary School700 m away
- St Michael's Woolmer Green CofE VA Primary School800 m away
- Knebworth Primary and Nursery School2.2 km away
- Monk's Walk School3.2 km away
- Ridgeway Academy4.8 km away
- Barnwell School5.1 km away
More reading links
Public Transport Nearby
- Welwyn North|2.4 km away
- Knebworth|2.4 km away
- Watton-at-Stone|4.9 km away
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.
