Our Data Sources
43, Mardley Hill, Welwyn has 31 entries in the Land Registry , most recently in December 2008 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 43, Mardley Hill, Welwyn would be worth £714,778, with a potential rental value of £2,860 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £633,089, with a rental value of £2,533 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
43, Mardley Hill, Welwyn occupies a 920 m2 plot as recorded by HM Land Registry.
Of the 17 other houses in this postcode, 15 have recorded plot sizes, and this one ranks as the 7th largest.
Sold Prices
43, Mardley Hill, Welwyn last changed hands on 22nd December 2008, selling for £414,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has risen by 93.4% since December 2008.
- Sold Dec 2008£414,000
- Sold Nov 2001£330,000
- Sold Jul 1996£142,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 1.4 kilometres of 43, Mardley Hill, Welwyn across the last 2 years.
Most recently, 31, Hillside Way, Welwyn, AL6 0TY, a freehold house, sold at £715,000 on the 22nd October 2025.
Read more about house prices in AL6.
- Sold Oct 2025£715,000 | 4 Bed House31, Hillside Way, Welwyn, AL6 0TY31, Hillside Way, Welwyn, AL6 0TY
- Sold Nov 2023£695,000 | 4 Bed House3A, Hillside Way, Welwyn, AL6 0TY3A, Hillside Way, Welwyn, AL6 0TY
- Sold Aug 2021£775,000 | 4 Bed House1, Hillside Way, Welwyn, AL6 0TY1, Hillside Way, Welwyn, AL6 0TY
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 43, Mardley Hill, Welwyn as the 25th largest and the 28th most expensive of the 39 addresses on Mardley Hill, Welwyn, AL6.
Against the AL6 postcode district average, it is £106k less expensive than the typical property.
More reading links
Schools Nearby
- 500mSt Michael's Woolmer Green CofE VA Primary School
- 1.0kmOaklands Primary School
- 1.9kmAll Saints Church of England Voluntary Aided Primary School, Datchworth
- 3.5kmMonk's Walk School
- 4.8kmBarnwell School
- 5.0kmRidgeway Academy
More reading links
Public Transport Nearby
- 2.2kmKnebworth
- 2.7kmWelwyn North
- 4.7kmWatton-at-Stone
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.
