Here is a list of towns in the uk that begin with the letter g, you can place your council or housing association exchange in the one where you live.

Ukhomeswap homepage is located here

gairloch
galasheils
gateshead
gerrards cross
gillingham
glamorgan
glasgow
glastonbury
glenrothes
glossop
gloucester
godalming
godstone
gosport
grangemouth
grange-over-sands
grantham
gravesend
great missenden
greenford
greenock
gretna
grimsby
guernsey
guildford
guisborough
gullane