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

Ukhomeswap homepage is located here

macclesfield
machynlleth
maesteg
magharafelt
maidenhead
maidstone
maldon
malmesbury
malpas
malvern
manchester
march
margate
market harborough
marlow
maryport
matlock
meifod
melksham
melton mowbray
mere
methyr tydfil
mexborough
middlesbrough
middlewich
midhurst
mildenhall
milton keynes
minehead
mirfield
mitcham
mitcheldean
mold
monmouth
montgomery
montrose
morden
morecambe
morpeth
motherwell
musselburgh