Props for opencagedata.com! It's fairly easy (days work) to set up a Geoserver web map server to provide the data you need as a Web Map Service. You could use

Props for opencagedata.com! It's fairly easy (days work) to set up a Geoserver web map server to provide the data you need as a Web Map Service. You could use parent's data. People should note the GetFeatureInfo interface that WMS provides for asking about the entities in a particular part of the map - click a house, yield the address and owner as XML (if you have that data). Then you'd use openlayers to implement the web map on your site. A 'roll your own' solution like this is only a good idea if you want to do something special, but an off the shelf solution constrains what you believe you can do. Imagine if every start-up was doing their site in wordpress.