Our Data Sources
10, Lower Mardley Hill, Welwyn has 31 entries in the Land Registry , most recently in July 2024 and a single entry in the EPC database dated September 2021.
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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 10, Lower Mardley Hill, Welwyn is in very good condition we estimate a sale value of £739,122 and a rental value of £2,984 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £654,651 and a rental value of £2,643 per month.
Plot Size
According to data from HM Land Registry, 10, Lower Mardley Hill, Welwyn sits on a plot of 543 m2.
We have plot size data on 7 out of 7 other houses in the postcode and 10, Lower Mardley Hill, Welwyn sits on the 4th largest plot.
Energy Efficiency
10, Lower Mardley Hill, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 13 Sep 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 10, Lower Mardley Hill, Welwyn was last sold on 18th July 2024 for £670,000 and was recorded as a freehold house.
The property has had 3 sales since 1995.
Since July 2024, the market for similar properties has risen by 8.8%.
- Sold Jul 2024£670,000
- Sold Mar 2022£675,000
- Sold Jun 2002£250,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 135 sales of properties similar to 10, Lower Mardley Hill, Welwyn within a radius of 1.5 kilometres over the last 2 years.
The most recent example is 4A, Heathbrow Road, Welwyn, AL6 0QG, a freehold house which sold for £747,218 on the 5th November 2025.
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 Jan 2024£700,000 | 4 Bed House3, Leonards Close, Welwyn, AL6 0QJ3, Leonards Close, Welwyn, AL6 0QJ
- Sold Dec 2019£627,500 | 4 Bed House25, The Chase, Welwyn, AL6 0QT25, The Chase, Welwyn, AL6 0QT
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Lower Mardley Hill, Welwyn, AL6 has a total of 12 addresses. According to our analysis of all the public data, 10, Lower Mardley Hill, Welwyn is the 8th largest and the 8th most expensive property on the street.
When compared to the postcode district it is £97k less expensive than the average property in AL6.
More reading links
Schools Nearby
- Oaklands Primary School400 m away
- St Michael's Woolmer Green CofE VA Primary School1.2 km away
- Welwyn St Mary's Church of England Voluntary Aided Primary School2.4 km away
- Monk's Walk School2.8 km away
- Ridgeway Academy4.5 km away
- Barnwell School5.4 km away
More reading links
Public Transport Nearby
- Welwyn North|2.1 km away
- Knebworth|2.7 km away
- Welwyn Garden City|4.7 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
