Green building renovation / Discussions

Do you offer free in-site evaluations, and if so could we make an appointment to discuss my options? How would I go about retro-fitting into net-zero an apartment in a high rise? And a house? How to find the apartments/houses on sale which are already net-0?  Thanks,

I have a century home that I am renovating myself as time and money permits.  I have a strong desire to make this home as comfortable as possible for my time in the home and for future homeowners to come. The exterior walls of the house are: plaster/lathe - 2x4 wood studs (no existing insulation) - wood sheathing - bri...