Developers do not have one website problem, they have one per launch. Each project needs its own gallery, floor plans, location details, brochure downloads and registration of interest form - and it needs to go live quickly, then be archived without breaking links once the phase sells out.
The approach is a single administrable site where projects are records rather than hand-built pages. Marketing adds a launch, uploads plans and imagery, sets the status, and the listing pages, filters and sitemap update themselves.
Enquiries are routed by project rather than dropped into one shared inbox, so the sales team sees only what belongs to them, and every submission is stored rather than living solely in email.