Aloha,Impossible to say without knowing how the existing is constructed; how big; is it simple square/rectangle or irregular...

So far entergy was coming in such a high price. high price now they say because of potential income i can get the poles and cable to  my meter base discounted almost no cost.   10 to 15 pads on nice rectangle lot, next to new pond we dug outdoor camping.. 

We have a SFH on a cul-de-sac, so the lots at the end aren't straight rectangles.

Hello Kyle,There are lots of things to consider, and there are lots of different types of Zoning for residential.For example you could be zoned residential, but the minimum lot size could be 1 acre, and you are buying 1 acre, in that case you wouldn't need a developer, you would just need a builder.For example, lets say you have 5 acres and a perfect rectangle property, that has an existing street that runs the long ways of the property so you won't have to put in any streets, you will simply need to get with a surveyor, figure out your minimum lot widths from zoning, and file with the municipality to get your property subdivided into lots.Once you have subdivided lots, you can either sell the lots outright to a builder, the cleanest transaction.Option 2, you could try to partner with a builder so you can split the profits, most builder's will want you to guarantee the loan, and still charge a build fee before profit splits.Option3, you can hire the builder, obtain the financing, and keep all the profits.Option 4, you could do any combination of 1,2, and 3. 

All squares are rectangles, but not all rectangles are squares.Second, when I said "why are you considering this", I was asking why would you consider investing in a deal that you already new was losing money? 

@Lisa Miller So you're talking about when squares or rectangles that designate a plot, don't match up against each other on a plat map.

regular rectangle or square size or irregular?)

For instance, if it's a 25' x 50' rectangle, basement + one floor above, garage in half the basement (and you know garages don't "count" in that jurisdiction), then it can't be more than about (25 x 50) + (25 x 25) = 1,875 square feet. 

The lot is a long rectangle in shape and measures 4 acers.

I couldn't quite make out the brown rectangles on the walls.