This dataset contains a web application (written in Flask, Python) to register answers to questionnaires targeted to different stakeholders involved in green roofs. All entires are automatically added to an SQLite database. In its presented form, six green roofs of Barcelona are considered, but this can be customised as wished. The full question bank and an easy-reading version of it are included.

An empty database file is provided along with the SQLite schema to generate the tables. The Python code is also included in order to allow the application to be offered through a server.

All questions are offered in Catalan and Spanish.

The application is written in Flask (Python) and needs to be run on a Linux/BSD server. Once on a server, the application runs in any browser. The resulting database is a single SQLite file that can be edited and processed with any SQLite application, like DB Browser for SQLite.