Our Data Sources
45, Mardley Hill, Welwyn has a single entry in the Land Registry from February 2025 and a single entry in the EPC database dated July 2014.
We combine this information with that of neighbouring properties to estimate the property 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 45, Mardley Hill, Welwyn would be worth £605,239, with a potential rental value of £2,604 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £536,068, with a rental value of £2,306 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
45, Mardley Hill, Welwyn has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 10 Jul 2014.
The property is not connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
45, Mardley Hill, Welwyn last changed hands on 7th February 2025, selling for £575,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has dropped by 0.5% since February 2025.
- Sold Feb 2025£575,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 1.4 kilometres of 45, Mardley Hill, Welwyn across the last 2 years.
Most recently, 9, Mardley Hill, Welwyn, AL6 0UE, a freehold house, sold at £600,000 on the 23rd March 2026.
Read more about house prices in AL6.
- Sold Mar 2026£600,000 | 3 Bed House9, Mardley Hill, Welwyn, AL6 0UE9, Mardley Hill, Welwyn, AL6 0UE
- Sold Jun 2025£575,000 | 3 Bed House6, New Road, Knebworth, SG3 6JX6, New Road, Knebworth, SG3 6JX
- Sold Jun 2022£699,995 | 3 Bed House12, Hillside Way, Welwyn, AL6 0TY12, 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 45, Mardley Hill, Welwyn as the 31st largest and the 35th most expensive of the 39 addresses on Mardley Hill, Welwyn, AL6.
Against the AL6 postcode district average, it is £211k less expensive than the typical property.
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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.
