If found that setting the “user_allow_other” variable in /etc/fuse.conf and then adding it to /etc/fstab also works nicely. This is the fstab line I use:
sshfs#user@192.168.0.1:/path/to/remote/dir /var/www/myproject fuse rw,auto,users,allow_other,max_read=65536 0 0

‘auto’ makes it mount on boot, ‘users’ allows it to mount it as a regular user and not only as root, ‘allow_other’ allows access to users other than the one mounting it (such as www-data) and ‘max_read’ seems to be speeding up access times.