Depends on the complexity of the design, zoning approval process, and material / labor availability in your area and with your contractor. Usually at least 3 months before first sign of construction begins.

Depends somewhat on how your contractor works. We don't start anything until all products are selected with the homeowners and we know they will be available when needed for the project (not on back order, etc.). Takes a little more time (particularly if the homeowners don't have a lot of time to put towards selections), but lessens risk of having to back up and redo something - and also seems to improve results as decisions aren't made in a hurry under duress. For major projects, we would say about 3-4 months lead time.

Depends Needmycoffee........are you talking about from the time you hire your Architect and Interior Designer to turning dirt (construction) or are you talking about the time from having a completed and thorough set of design documents in hand and your contractor on board?

If you're talking about the time that includes design, the work load of your Architect comes into play and how many questions (design issues) you answer during the design process, and how available you are to your Designers.

If your talking about design complete time to turning dirt, here again there are factors to be considered. Is your contractor familiar with the project, was he involved during the design phase? Were the permitting authorities involved during the design process? They can be you know.......it jumps start the permitting review process. Most permitting offices actually like for home owners to come in early and discuss their plans before submitting for permit. It makes their job easier and usually results in a quicker turn around for permits.

The time frames are all dependent on your team members (yourself included) and how efficient and proactive the approach is. An efficient and proactive team approach will shorten the time frame........the opposite usually results in an extended time frame, delays and a busted budget.. I would think, based on your brief description, anywhere from 3-6 months you could have permits in hand and construction started...........but things happen. I once had a project (ocean front vacation home).......it took 20 months for design and permitting..........every decision (materials, finishes, colors, etc., etc.) already made, contractor involved from the first day, permitting authorities involved from the first day, scheduled, budgeted, financing in hand.........ready to turn dirt. Then a 4 month delay for turtle nesting season.

Thanks all for your replies. I am meaning from the very very start (hiring an architect) to turning dirt. I am realistically wanting to "turn dirt" in about 18 mos, so trying to work backwards from that point in when to hire. I hear our town is super picky in permitting, so I might need to estimate on the longer side to be safe. Thanks again!