bringing in drywall may require you to remove a window and pass the sheetrock through the opening. Yes, you do need a permit and follow code, there are height requirements, egress window, closet, among others...lots of requirement to create more living space. Best to start with local officials.

Head height *after* insulation is a big challence.Fire safety egress is another. Plumbing is another. No one wants a bedroom without same floor access to a bath.

You need to have it all inspected, to see if the house is built to have living space in the attic. Some houses are, and some are not . Attics were originally just for storage, and access to wiring, etc, but, not all have floor joists that will work for a living space. I would do this, before you make plans. Also, finished height is a big problem in some attics.

First can it be converted to living space not all attics can . Strat there then if you can do this the next thing is to have a plan that includes any rework of the structure to get it right . Are the stairs an actual staircase or pull down ? You are moving in the right direction so once you get approval come back and we can maybe help with all the rest. We did this n a 1905 home and gained a huge benfit in space we had a bedroom a bathroom in a new dormer and and it was awesom but needed some sturctural work for sure , The stairs were basically in the center of the house and no way to make it better

Do you have a photo of the attic? That can lead to a better response.

You need to figure out how much space you'll have once you have flooring and ceiling insulation. If the clearance is tight, a few inches at the floor and a few at the ceiling will make a difference.

The next thing is light. Do you have adequate windows?

You'll probably want to rail or wall off three sides of the hole for the stairs.

I'd start with some careful measurements to figure out how much useable floor space you'll have, what your headroom will be with insulation and flooring and look at the lighting.

You've got your list out of numerical order. 3 should be 1 and no other after. If your contractor needs an engineer, he's got one on speedial and he has a good working relationship with inspection. Stay in your own lane, please.

@Patricia Colwell Consulting they are actual stairs and not pull down. I am excited about having a bathroom in attic but heard that it is an expensive proposition. How much does it cost - ballpark estimate?

@Seabornman I will share a photo as soon as I close the house in few weeks.

@Minardi thank you for sharing wonderful specs & requirements - very helpful.

@Sigrid there are two windows one in north and one is south for entire space - ~900sqft.

@Joseph Corlett, LLC great suggestion. I will look for contractors pretty soon.

Ten years ago I had quotes for turning our attic into a master suite. The estimates were in the six figures. We had a walk up too. Attic conversions are per square foot much more than an addition. We ended up building a bath above a sunroom. That second story 108sq foot bathroom cost less than a third of the estimates to finish the attic.

Would you still buy the house if you could not add a bedroom and office in the attic?

How many stories up is the attic? Because in some zoning areas, you may be required to not only have a code compliant egress window, but may also have to have a sprinkler system! And that can be very expensive…