Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
3, Sylvandale, Welwyn Garden City, AL7 2HP -	23 Feb 2012	£325,000	96 m² 1033 sqft	£3,385 £314	Detached (4 bed)
7, Sylvandale, Welwyn Garden City, AL7 2HP -	28 Jan 2011	£280,000	90 m² 968 sqft	£3,111 £289	Detached (4 bed)
9, Sylvandale, Welwyn Garden City, AL7 2HP -	05 Mar 2010	£332,000	128 m² 1377 sqft	£2,593 £240	Terrace (4 bed)
5, Sylvandale, Welwyn Garden City, AL7 2HP -	25 Aug 2006	£310,000	121 m² 1302 sqft	£2,561 £237	Semi-D (3 bed)
15, Sylvandale, Welwyn Garden City, AL7 2HP -	20 Feb 1998	£145,000	120 m² 1291 sqft	£1,208 £112	Terrace (4 bed)
3, Sylvandale -	£325,000 Feb-2012	96 1033	3,385 314
7, Sylvandale -	£280,000 Jan-2011	90 968	3,111 289
9, Sylvandale -	£332,000 Mar-2010	128 1377	2,593 240
5, Sylvandale -	£310,000 Aug-2006	121 1302	2,561 237
15, Sylvandale -	£145,000 Feb-1998	120 1291	1,208 112

The data above for Sylvandale can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in Sylvandale, Welwyn Garden City is £6,296 sqm (£584 per sq ft), this is calculated from sold property prices of the 8 most recent sales.
The majority of homes in Welwyn Garden City are now selling for between £4,260 and £5,700 per square metre (£395 and £529 per square foot) , find out more in this local analysis of AL7 2 (Welwyn Garden City) house prices.
There are approximately 48 homes on Sylvandale, we would have expected about 6 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 8 property sales in Sylvandale, averaging approximately 2 home sales per year .
The average size of all the properties on Sylvandale is 92 m2 (990 sqft).