Our Data Sources
28, Mardley Hill, Welwyn has 21 entries in the Land Registry , most recently in November 2010 and a single entry in the EPC database dated February 2009.
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 28, Mardley Hill, Welwyn, we estimate a market value of £881,833 and a rental value of £2,879 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £781,052 and £2,550 per month respectively.
Plot Size
HM Land Registry records the plot of land for 28, Mardley Hill, Welwyn as measuring 1,480 m2.
That makes it the 3rd largest plot in the postcode, where all 6 other houses have recorded plot data.
Energy Efficiency
28, Mardley Hill, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Feb 2009.
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 28, Mardley Hill, Welwyn completed on 4th November 2010 at £520,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 79.0% over the period since November 2010.
- Sold Nov 2010£520,000
- Sold Feb 2005£365,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 28, Mardley Hill, Welwyn have sold within a radius of 1.3 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 Dec 2024£778,000 | 4 Bed House13, Hillside Way, Welwyn, AL6 0TY13, Hillside Way, Welwyn, AL6 0TY
- Sold Oct 2020£770,000 | 4 Bed House11A, Heath Road, Welwyn, AL6 0TP11A, Heath Road, Welwyn, AL6 0TP
•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, 28, Mardley Hill, Welwyn comes out as the 21st largest and the 19th most expensive in our analysis of the public data.
It is also £53k more expensive than the average property across the AL6 district.
More reading links
Schools Nearby
- 300mSt Michael's Woolmer Green CofE VA Primary School
- 1.2kmOaklands Primary School
- 1.7kmAll Saints Church of England Voluntary Aided Primary School, Datchworth
- 3.7kmMonk's Walk School
- 4.6kmBarnwell School
- 5.2kmRidgeway Academy
More reading links
Public Transport Nearby
- 2.0kmKnebworth
- 2.9kmWelwyn North
- 4.5kmWatton-at-Stone
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.
