The Sussex Green Hub is in the United Reformed Church on the last Saturday of each month, 10-4 p.m.   It is at 41 Springfield Road, behind Wilko and opposite the Lynd Cross Pub, at the end of West Street.   A parking map is shown below, but the nearest is at Swan Walk, Black Horse Way, Sainsburys  or John Lewis.  There is on-site parking, but it is tricky to get into!