Index polygons spatial data (INSPIRE) Data showing the indicative extent and position of registered freehold properties in England and Wales. This dataset was published on 1 February 2026. You can access the data until we update the files. New files are published on the first Sunday of every month. To build with Python: ```pip install git+https://github.com/opensiteenergy/openlibrary.git``` ```openlibrary https://data.opensite.energy/dataset/35ddabe7-0f84-446b-a92a-66dbe0b13a9d/resource/d16c5e8e-c3d5-40c3-a4f1-e767da332763/download/solar-land-parcels-too-small-england-wales.yml```