I currently live in Southern Maine and am looking to construct some kind of new project rather getting into rehabbing existing residentialProposed Land Budget 100-200kConstruction Budget: 400kAll in 500-600k.I have found that if I do the site work myself including clearing, septic and digging the foundation is that i can sub contract out either steel or a Lester style building (50x150) for around 300k installed with insulation and power , divided into three 2500 square foot units. 

Had a neighbor (retired from Minnesota) who does home construction and real estate stop by to check out the bulldozing to see if he had any recommendations. 

If it was me...I'd check with zoning to find out how many dwelling units I could build, and I'd find what the requirements are for those units (type of house, height and setback restrictions, etc.).Then I'd find out what local builders think the cost to construct would be - just get a cost estimate per square foot for 2 or 3 different levels of finish.

@Blake Kirby the new construction is mostly SFHs on the far outskirts, or "luxury" apartments and/or condos as infill projects.

Depending on the construction, you have to do major upgrades on electric, plan for plumbing for apartments which may not be permitted in the area for the sewer or septic.

But there is a lot of new construction and rehabs.  

Our state is currently pushing the construction of ADUs, perhaps the easiest and cheapest way to add additional housing.

I love new construction for that very reason.

There's been a tremendous amount of new home construction in our area, even before Covid and the new houses have very small yards with no parking besides their 2-car garages.

Ongoing construction projects valued between $26 billion and $30 billion fuel employment opportunities.