Our Data Sources
4, Lower Mardley Hill, Welwyn has 2 entries in the Land Registry , most recently in June 2016 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
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 4, Lower Mardley Hill, Welwyn, we estimate a market value of £728,649 and a rental value of £2,977 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £645,375 and £2,636 per month respectively.
Plot Size
HM Land Registry records the plot of land for 4, Lower Mardley Hill, Welwyn as measuring 468 m2.
That makes it the 5th largest plot in the postcode, where all 7 other houses have recorded plot data.
Sold Prices
The most recent sale of 4, Lower Mardley Hill, Welwyn completed on 2nd June 2016 at £540,000 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 24.3% over the period since June 2016.
- Sold Jun 2016£540,000
- Sold Jan 2007£425,000
Similar Properties Sold Nearby
Over the past 2 years 140 properties similar to 4, Lower Mardley Hill, Welwyn have sold within a radius of 1.5 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 5th November 2025, was 4A, Heathbrow Road, Welwyn, AL6 0QG, a freehold house which sold for £747,218.
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 Jul 2024£670,000 | 4 Bed House10, Lower Mardley Hill, Welwyn, AL6 0SQ10, Lower Mardley Hill, Welwyn, AL6 0SQ
- Sold Jan 2024£700,000 | 4 Bed House3, Leonards Close, Welwyn, AL6 0QJ3, Leonards Close, Welwyn, AL6 0QJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 12 addresses on Lower Mardley Hill, Welwyn, AL6, 4, Lower Mardley Hill, Welwyn comes out as the 9th largest and the 9th most expensive in our analysis of the public data.
It is also £107k less expensive than the average property across the AL6 district.
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
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.
