External Plots
It's possible to buy and build on land beyond that you inherited in Ikaanos City. Two lots of land suitable for development are for sale near your home base in Redhaven. Their locations are shown on the map here- Old Baker's Lot to the west of your compound, and Speaker's Square to the south-south-west. Each is being offered for $40,000. Each has room for a Workshop ($35,000+) or a Tavern ($32,000+) to be built on it, or maybe one day a Stronghold. Developments on these plots will each add +2 to your faction's Power Value.
Click on the brown rectangles (building foundations) in order to see your options.