Our Data Sources
21, Mardleywood, Welwyn has no recent1 records in the the Land Registry and a single entry in the EPC database dated March 2018.
We combine this information with public data 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
In very good condition, we estimate 21, Mardleywood, Welwyn would be worth £926,990, with a potential rental value of £2,899 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £821,048, with a rental value of £2,567 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Mardleywood, Welwyn occupies a 508 m2 plot as recorded by HM Land Registry.
Of the 18 other houses in this postcode, 8 have recorded plot sizes, and this one ranks as the 6th largest.
Energy Efficiency
21, Mardleywood, Welwyn has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 02 Mar 2018.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
21, Mardleywood, Welwyn last changed hands on 30th May 1997, selling for £200,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
- Sold May 1997£200,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 102 sales of comparable properties within 1.1 kilometres of 21, Mardleywood, Welwyn across the last 2 years.
Most recently, 11, Hangmans Lane, Welwyn, AL6 0TJ, a freehold house, sold at £900,000 on the 9th August 2024.
Read more about house prices in AL6.
- Sold Aug 2024£900,000 | 4 Bed House11, Hangmans Lane, Welwyn, AL6 0TJ11, Hangmans Lane, Welwyn, AL6 0TJ
- Sold Mar 2024£750,000 | 4 Bed House13B, Woodland Way, Welwyn, AL6 0RZ13B, Woodland Way, Welwyn, AL6 0RZ
- Sold Jun 2021£900,000 | 4 Bed House19, Mardley Dell, Welwyn, AL6 0UR19, Mardley Dell, Welwyn, AL6 0UR
•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 21, Mardleywood, Welwyn as the 19th largest and the 13th most expensive of the 28 addresses on Mardleywood, Welwyn, AL6.
Against the AL6 postcode district average, it is £82k 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.












