We are planning to add an upstairs dormer to our 900-square-foot ranch (adding about 500 additional square feet).
The entire project for us is very daunting and we don't yet have enough money to complete the entire project. We are considering two options:
- Wait a year until we have all the money saved which we need, then do the whole project in one phase.
- Do the project in two phases where the first phase would be to frame the entire space and do all the roof / exterior work. Then wait until we save the rest of the money needed and do the remaining work including insulation, plumbing, heating, electrical, floors, walls, and all fixtures. Possibly do some of this work ourselves.
The second option appeals to us for several reasons:
- We would only be doing at each phase the portion of the project for which we had the money available.
- We could put the project on-hold at various points to make it more manageable for us and to give us more time to shop around for contractors and finishings.
- Since the project schedule would be more flexible, this would give us more flexibility to do work ourselves that we might otherwise not be able to.
Are there any disadvantages to a two-phase approach where we would have just an unheated shell on top of the house over a winter? Are there any significant advantages which we may not have thought about yet?