Building a House
With a recently developed liking for gardening, I am planning to build a house in Karachi, Pakistan. With the budget constraints I can only buy a plot of land which is 400 square yard (3600 square feet). After complying with local laws relating to construction restrictions and having some space for car parking, I am left with 2,700 sf which I can construct on. My plan is for constructing on around 2200 sf and the remaining for 500 sf for a garden. In addition, I also plan for a roof top garden.
My main purpose is to be able to grow vegetables as much as possible to reduce my reliance on the market.
Also I wish to be have sufficient storage for water
Though currently not possible, in the future I also plan to become more reliant on self generated electricity (solar mainly) and therefore would want the this to be taken into consideration at the planning stage including building the house in such a way so that the cooling bills are not high. The weather in Karachi ranges from 45F (8C) in winter (January) to 115F (45C) in summer (August).
The immediate questions that come to my mind and for which I would seek your expert advice are:
1/ With an aim to be self reliant in food (veggies), what should I do with setup that I can afford. Also I cannot go below 2000sf for residential area - that the bare minimum
2/ What consideration should be kept in mind if I am planning for a roof top garden? What special things must be done so that the roof top garden remains viable.
3/ Any ideas for summer greenhouse on the roof/ground?
4/ In order for being energy efficient what building / other materials should be considered?
5/ Since I plan on food self sufficiency, I also plan to be self sufficient in the fertilizer for the plants (composting). What measures / consideration should I keep so that this can be taken care of? Like for example, should I plan to have a pit so that kitchen other waste can be stored there for composting? Any other ideas
6/ Any ideas for water storage?
7/ Finally, any other things which I should consider and which I might have missed.
We are two brothers who are going to use this house. One floor (on the ground) would be for my brother and his family and the floor above is going to be under my and my family use. The roof top garden is going to be on the second floor. Local laws prohibit construction beyond that.
I hope to get some great advice from this community.
Thanks in advance.