A builder's work on a presale starts before the sales centre closes. You price the drawings, often while they are still changing, and you are asked to hold that price against a schedule that depends on permits, financing and presales you don't control. Once the lender funds and the building permit is issued, you mobilize: excavation, shoring, foundations, structure, envelope, then mechanical, electrical and finishing trades in a sequence where one late crew pushes every crew behind it.
All through the build, you are answering questions that don't come from the site. The sales team wants to know if the completion date is holding. Buyers ask when they can see their home. The developer asks why a finish on the schedule doesn't match the one in the brochure. In BC, residential builders are licensed and new homes carry mandatory home warranty coverage, commonly called 2-5-10, with set periods for materials and labour, the building envelope and structure. Check the current terms with the provincial warranty regulator.
Near the end, the pace gets harder. You work toward occupancy, walk each home with the buyer at a pre-delivery inspection, and build a deficiency list. Then comes handover: keys, manuals, warranty documents, and the transfer to a strata corporation that will hold its first meeting and start asking for records. The work that follows, closing deficiencies and handling warranty claims, can run for years. Most of it arrives as phone calls and emails with no photo and no unit number. Meanwhile the next project is already starting, and the people who knew the answers have moved on to it.