Factors that affect design:
The surrounding area affects who goes there and the purpose of the building. E.g. office buildings and skyscrapers in CBD are all tall office buildings.
The people who go there affect the purpose of the building. E.g. building exercise areas in older estates, shopping centres at areas where there are many young people.
Ethnic groups may affect the design of the building. E.g. patterns and decor, building religious buildings in appropriate areas.
Designing buildings to BETTER suit the people who go there. Similar to “People”. E.g. having lower toilet urinals in a kindergarten???