I want to be able to draw my house so I can get a builder to build to my plan. I like MacDraw. How do I get 1 inch equl 1 foot in inkscape? Is this the right program for me.?

I'm not 100% sure what do you want to do, but you can set the drawing size and default length units in Document Properties. The available units include feet.
I don't know what does "make 1 inch equal to 1 foot" mean. Can you elaborate?

Inkscape isn't really a drafting tool so my guess is that whilst it's technically possible you'll get frustrated and take a long time.

As for using your 1:12 scale, just make the dimensions of your canvas the same in inches, plus a couple inches, as your longest dimensions.

You really want a CAD suitable for architecture, it'll do doors, windows, stairs and things better that way. I used CICAS a few years ago to prepare plans for a planning permission application (UK) and that worked out OK but had quite a learning curve.

A oft-linked CAD links pages:
http://www.tech-edv.co.at/lunix/CADlinks.html

Looking around QCad: http://www.qcad.org/qcad.html and SweetHome 3D: http://sweethome3d.sourceforge.net/ (Java) look quite good.

How can I select just a few streets to put houses on?

https://victoriafoot.com/