That is a great question for a licensed mortgage broker Brad Coleman 

What Barbara Todaro said.

there are many differences....and there's enough information to write a blog post to satisfy that question.... there have been many posts written here...use the search box to pose that question and you'll have many answers...

The same except if you do a specialized new home loan from the beginning of construction.

 Two different animals...  see your local lender.

Anthony Acosta - ALLATLANTACONDOS.COM nailed this one!

Well, a future project and something that is already in place......rates and terms are different.

The manner in which they are structured and typically the interest rates. Speak with a lender who handles each and you'll see there's a big difference.

If you are building a home, a construction loan may be used to finance the build.  Typically, the builder gets a monthly draw based upon the expenses of the past month and where the home is in the construction process.  After the home is completed, most people pay off the construction loan with a long term mortgage.  But there are other options out there with all in one mortgages. Best to talk with a lender who specializes in these types of loans.

Barbara is the expert.

The differences are many. Are you referring to a homeowner buying a new construction home from a builder, OR a builder obtaining financing for the project?

Builder is paid in draws , while building (using the buyer's $$$)

You need to have regular conversations with your trusted local mortgage loan officer.

I am sure that a lender would know.

Brad Andersohn - rate lock etc are longer term for new construction.

lots. qual/rates/timing and more

Great answers are here.

Great answers are here. 

Good luck

well I've never seen a one and done construction loan, they usually have draws as stages are complete.

With an existing structure mortgage the full amount of the loan is paid at closing from the lender.With a construction mortgage the funds are customarily paid in increments related to the amount of constrction that is completed.

From the underwriting side there are different requirements involving copies of permits, builder docs and disclosures and a builder warranty required on new construction transfers in TN.

Good luck

Not much.

Many differences. An existing dwelling involves one payout at closing. A construction loan has negotiated payouts as construction proceeds.

no clue-  used or new residential loans.....