(Please note that in certain situations,  what ,  when , and  where  can function as relative pronouns.) Relative pronouns introduce relative clauses, which are a type of dependent clause. Relative clauses modify a word, phrase, or idea in the main clause.
The 2014 Survey of Construction (SOC) from the Census Bureau shows that the average completion time of a single-family house is around 7 months, which usually includes around 25 days from authorization to start and another 6 months to finish the construction.
Building a new home begins long before the foundation is poured. To avoid costly mistakes during the construction process, start with these five important steps. As you move from dream house to real house, be sure to ask questions and share your progress. 1. Plan Your Budget. Begin now to think about how much you can afford to spend and how much building your new home is likely to cost. Chances are you will need a construction loan and a mortgage.