Our Data Sources
20, Sylvandale, Welwyn Garden City has no records in the the Land Registry and a single entry in the EPC database dated March 2021.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 20, Sylvandale, Welwyn Garden City would be worth £588,763, with a potential rental value of £2,001 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £521,476, with a rental value of £1,772 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
20, Sylvandale, Welwyn Garden City occupies a 366 m2 plot as recorded by HM Land Registry.
All 36 other houses in this postcode have recorded plot sizes, and this one ranks as the 6th largest.
Energy Efficiency
20, Sylvandale, Welwyn Garden City has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 Mar 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 90 sales of comparable properties within 620 metres of 20, Sylvandale, Welwyn Garden City across the last 2 years.
Most recently, 5, The Holt, Welwyn Garden City, AL7 2HU, a freehold house, sold at £630,000 on the 9th October 2025.
Read more about house prices in AL7.
- Sold Oct 2025£630,000 | 3 Bed House5, The Holt, Welwyn Garden City, AL7 2HU5, The Holt, Welwyn Garden City, AL7 2HU
- Sold Mar 2025£625,000 | 3 Bed House2, Hurst Close, Welwyn Garden City, AL7 2HX2, Hurst Close, Welwyn Garden City, AL7 2HX
- Sold May 2023£542,500 | 3 Bed House3, The Shaws, Welwyn Garden City, AL7 2HR3, The Shaws, Welwyn Garden City, AL7 2HR
•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 20, Sylvandale, Welwyn Garden City as the 48th largest and the 34th most expensive of the 71 addresses on Sylvandale, Welwyn Garden City, AL7.
Against the AL7 postcode district average, it is £189k more expensive than the typical property.
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Schools Nearby
- Watchlytes Primary School700 m away
- Springmead Primary School1.1 km away
- Commonswood Primary & Nursery School1.3 km away
- Ridgeway Academy1.3 km away
- Stanborough School3.7 km away
- Monk's Walk School4.2 km away
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Public Transport Nearby
- Welwyn Garden City|2.7 km away
- Welwyn North|3.7 km away
- Hatfield (Herts)|4.8 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
