Planning application index map: County Series Town plan: Douglas 2 Index map for planning applications submitted for property and land in Douglas (promenade and upper Douglas areas). Scale: 1/2500. Each property subject to a planning application has been outlined in ink and the planning application reference number written on the map. The map and its header strip has been marked with the equivalent National Grid square references: SC3674, SC 3675, SC3775 and SC3875. When searching for planning applications, researchers should also consult the maps in S90/1, S90/3 and S90/4. 1930s-1950s