Our Data Sources
35, Mardleywood, Welwyn has 21 entries in the Land Registry , most recently in October 2007 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 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate 35, Mardleywood, Welwyn would be worth £1,045,094, with a potential rental value of £3,038 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £925,654, with a rental value of £2,691 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Sold Prices
35, Mardleywood, Welwyn last changed hands on 9th October 2007, selling for £515,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 81.3% since October 2007.
- Sold Oct 2007£515,000
- Sold Nov 2005£432,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 110 sales of comparable properties within 1.2 kilometres of 35, Mardleywood, Welwyn across the last 2 years.
Most recently, 1, Rosecroft Lane, Welwyn, AL6 0UB, a freehold house, sold at £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 Mar 2025£922,500 | 4 Bed House5, Chestnut Walk, Welwyn, AL6 0SB5, Chestnut Walk, Welwyn, AL6 0SB
- 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.
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Location Comparison
Our analysis of the public data ranks 35, Mardleywood, Welwyn as the 3rd largest and the 3rd most expensive of the 28 addresses on Mardleywood, Welwyn, AL6.
Against the AL6 postcode district average, it is £194k more expensive than the typical property.
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Schools Nearby
- St Michael's Woolmer Green CofE VA Primary School700 m away
- Oaklands Primary School800 m away
- Knebworth Primary and Nursery School2.0 km away
- Monk's Walk School3.3 km away
- Barnwell School4.9 km away
- Ridgeway Academy5.0 km away
More reading links
Public Transport Nearby
- Knebworth|2.3 km away
- Welwyn North|2.6 km away
- Watton-at-Stone|4.9 km away
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.












