Our Data Sources
26, Lower Mardley Hill, Welwyn has 31 entries in the Land Registry , most recently in October 2019 and a single entry in the EPC database dated September 2015.
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
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 26, Lower Mardley Hill, Welwyn is in very good condition we estimate a sale value of £854,000 and a rental value of £3,188 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £756,400 and a rental value of £2,824 per month.
Plot Size
According to data from HM Land Registry, 26, Lower Mardley Hill, Welwyn sits on a plot of 1,278 m2.
We have plot size data on 5 out of 5 other houses in the postcode and 26, Lower Mardley Hill, Welwyn sits on the largest plot.
Energy Efficiency
26, Lower Mardley Hill, Welwyn has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 02 Sep 2015.
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, 26, Lower Mardley Hill, Welwyn was last sold on 16th October 2019 for £660,000 and was recorded as a freehold house.
The property has had 3 sales since 1995.
Since October 2019, the market for similar properties has risen by 22.1%.
- Sold Oct 2019£660,000
- Sold Jan 2016£705,000
- Sold Jul 1998£242,500
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 124 sales of properties similar to 26, Lower Mardley Hill, Welwyn within a radius of 1.3 kilometres over the last 2 years.
The most recent example is 1, Rosecroft Lane, Welwyn, AL6 0UB, a freehold house which sold for £775,000 on the 12th December 2025.
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 May 2025£675,000 | 5 Bed House16, Marlborough Close, Welwyn, AL6 0UG16, Marlborough Close, Welwyn, AL6 0UG
- Sold Dec 2020£930,000 | 5 Bed House4, Marlborough Close, Welwyn, AL6 0UG4, Marlborough Close, Welwyn, AL6 0UG
•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, 26, Lower Mardley Hill, Welwyn is the 3rd largest and the 6th most expensive property on the street.
When compared to the postcode district it is £12k more expensive than the average property in AL6.
More reading links
Schools Nearby
- Oaklands Primary School600 m away
- St Michael's Woolmer Green CofE VA Primary School1.0 km away
- All Saints Church of England Voluntary Aided Primary School, Datchworth2.4 km away
- Monk's Walk School3.0 km away
- Ridgeway Academy4.7 km away
- Barnwell School5.2 km away
More reading links
Public Transport Nearby
- Welwyn North|2.3 km away
- Knebworth|2.6 km away
- Welwyn Garden City|4.9 km away
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












