Our Data Sources
17, Sylvandale, Welwyn Garden City has 51 entries in the Land Registry , most recently in October 2014 and a single entry in the EPC database dated June 2014.
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 17, Sylvandale, Welwyn Garden City, we estimate a market value of £515,285 and a rental value of £1,795 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £456,396 and £1,590 per month respectively.
Plot Size
HM Land Registry records the plot of land for 17, Sylvandale, Welwyn Garden City as measuring 201 m2.
That makes it the 26th largest plot in the postcode, where all 28 other houses have recorded plot data.
Energy Efficiency
17, Sylvandale, Welwyn Garden City has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 26 Jun 2014.
The property is not 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 17, Sylvandale, Welwyn Garden City completed on 28th October 2014 at £365,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 5 times.
Values of comparable properties have risen by 32.3% over the period since October 2014.
- Sold Oct 2014£365,000
- Sold Aug 2007£292,000
- Sold Feb 2003£247,000
Similar Properties Sold Nearby
Over the past 2 years 109 properties similar to 17, 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 10th February 2026, was 120, Forresters Drive, Welwyn Garden City, AL7 2JQ, a freehold house which sold for £465,000.
Read more about house prices in AL7.
- Sold Feb 2026£465,000 | 3 Bed House120, Forresters Drive, Welwyn Garden City, AL7 2JQ120, Forresters Drive, Welwyn Garden City, AL7 2JQ
- Sold Dec 2025£445,000 | 3 Bed House5, Forresters Drive, Welwyn Garden City, AL7 2HN5, Forresters Drive, Welwyn Garden City, AL7 2HN
- Sold Nov 2025£520,000 | 3 Bed House1, Birchall Wood, Welwyn Garden City, AL7 2HL1, Birchall Wood, Welwyn Garden City, AL7 2HL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 71 addresses on Sylvandale, Welwyn Garden City, AL7, 17, Sylvandale, Welwyn Garden City comes out as the 65th largest and the 66th most expensive in our analysis of the public data.
It is also £119k more expensive than the average property across the AL7 district.
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Schools Nearby
- Watchlytes Primary School700 m away
- Springmead Primary School1.0 km away
- Swallow Dell Primary and Nursery School1.3 km away
- Ridgeway Academy1.2 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.
