One may get better deals because he/she buys more in the year or has arranged better deals from suppliers than the next person.So to point a question back to you, why are you looking for the "average price pSF" in Los Angeles for new construction?

Also worth noting your area, some subdivisions have contracts for a single propane supplier and they can have variable rates, with winter being the worst.  

There are seemingly endless brands that likely all use the same white-label supplier. 

Some vendors have their own suppliers, but Floor & Decor always has a greta selection and price points.

One the companies that was considering the North East Austin multi-billion dollar development has apparently been named by several sources as Applied Materials Inc.Semiconductor supplier Applied Materials considering Hutto for $2B project, sources sayArticle link here:https://www.bizjournals.com/au...

Similar to that of any other investment partner, structure a deal in that part of the proceeds from your arbitrage business goes to your landlord, the legitimate supplier if you will.

I'm looking for recommendations for a roofer, general contractor, handy man, electrician, plumber, painter, carpenter, and cabinet supplier.

Now, with a diminished supply being fought over for increased homebuilding and improvement projects, the wood you need for that Little Free Library project will cost you 250 percent more than it did last year.The upshot: Suppliers weren’t convinced that the construction industry could withstand the pandemic until 2021; they’ll need time (perhaps till 2022) to ramp up production enough to meet demand.

Think - the space a carpet supplier might occupy with a small amount of retail up front and a large warehouse in the back. 

The house itself may be more expensive to build as you're buying/building a one off house and that almost always costs more..than buying from a production builder who may build 1000s of the same floorplan and has purchasing power with suppliers to buy materials for 1000s of houses.