Our Data Sources
18, Sylvandale, Welwyn Garden City has 3 entries in the Land Registry , most recently in August 2019 and a single entry in the EPC database dated September 2017.
We combine this information with that 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
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 18, Sylvandale, Welwyn Garden City, we estimate a market value of £675,022 and a rental value of £2,208 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £597,876 and £1,955 per month respectively.
Plot Size
HM Land Registry records the plot of land for 18, Sylvandale, Welwyn Garden City as measuring 213 m2.
That makes it the 28th largest plot in the postcode, where all 36 other houses have recorded plot data.
Energy Efficiency
18, Sylvandale, Welwyn Garden City has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Sep 2017.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 18, Sylvandale, Welwyn Garden City completed on 16th August 2019 at £560,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have dropped by 6.3% over the period since August 2019.
- Sold Aug 2019£560,000
- Sold Feb 2014£390,000
- Sold Mar 2008£409,000
Similar Properties Sold Nearby
Over the past 2 years 65 properties similar to 18, Sylvandale, Welwyn Garden City have sold within a radius of 620 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 12th March 2026, was 5, Sylvandale, Welwyn Garden City, AL7 2HP, a freehold house which sold for £620,000.
Read more about house prices in AL7.
- Sold Mar 2026£620,000 | 4 Bed House5, Sylvandale, Welwyn Garden City, AL7 2HP5, Sylvandale, Welwyn Garden City, AL7 2HP
- Sold Mar 2025£575,000 | 4 Bed House4, The Holt, Welwyn Garden City, AL7 2HU4, The Holt, Welwyn Garden City, AL7 2HU
- Sold Jan 2019£520,000 | 4 Bed House5, Hurst Close, Welwyn Garden City, AL7 2HX5, Hurst Close, Welwyn Garden City, AL7 2HX
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 71 addresses on Sylvandale, Welwyn Garden City, AL7, 18, Sylvandale, Welwyn Garden City comes out as the 12th largest and the 5th most expensive in our analysis of the public data.
It is also £271k more expensive than the average property across the AL7 district.
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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
More reading links
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
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












