If you choose a house with a roof ridge that's orientated west/east as a basis, and ideally, already has the living areas facing south, you can, if needed, add bigger windows and shading to allow the sun to shine into the house in winter and keep it out in summer.
I'd recommend having a lean-to greenhouse on just part of the south-facing side with a way of sending the heat upstairs to an open loft area in summer and use climbing plants, trees etc. to shade the sun. I use plants a lot for wind breaks and for controlling the comfort around our house. They're cheap and beautiful and carefully chosen, can leaf and flower exactly when you need them.
We're in South West France and have temperatures that range from -15°c to 42°c. Our house is about 350m² and I've never seen it more than 25° in the summer and it's warm and comfortable where we need it in the winter. A few times a year we've more than twenty people here for PDCs and other courses, normally in October and January. We use less than 4m² of wood each year to heat the house, cook, for hot water, drying plants, clothes etc. We also buy two small bottles of propane a year for summer cooking and use a pocket rocket fuelled by corn husks and waste wood. We're off grid with a very modest array of photovoltaic panels.
I've posted some details of the house (including a video of the interior temperatures when it's more than 40° outside) plus a few more ideas to provide more comfort. The thread is here, I hope it helps you in your planning.