Orienting a house design to the sun is easy. But put it on a small urban/suburban site, introduce a street grid, suddenly everything may not be going your way.
We admit that we've designed ourselves into this corner to a degree. We've made a decision to use an asymmetrical massing for the house which in turn dictates which way the house massing must be oriented for the sun. Its not completely a fabrication however as the asymmetrical profile does serve the small footprint of the house allowing us to make a 1.5 story design on a narrow dimension. But it does impose restrictions such as the dictate on solar orientation. Working with such limits introduces compromises which can be at once necessary and pleasing as they can create unexpected quirks or complexities to a design. And so we have here with our Lagom House as we strive to create variations on the design to accommodate different site orientations while maintaining the necessary solar orientation.
I've hinted at this in the past posts on the design process as I've been developing all three versions of the house concurrently, yet I've been using only one to share the progress of the design. So new we have three prototypes, two for streets running roughly east west, one for the north side of the street with the sloped roof facing the street, and one for the south side with the sloped roof facing the rear yard. The third version for north south streets slopes the roof towards the side yard.
The south side version is what we've been looking at, so lets look at how the floor plan shifts for the north side. The ground floor plan is essentially the same except for the flip of the relative direction of the stair. The front door shifts slightly towards the living room, and the foot of the stair is now right beside the entry foyer. This is not at all a bad arrangement and still retains the ability to step up and through the landing and proceed to the kitchen. A little bit more subtle is the change in orientation for the bedrooms, now facing the front yard rather than the back yard. This is not a great compromise in privacy, but some people may have a distinct preference.
The east west version makes greater compromises. First the plan never really makes an complete change over to the narrow deep orientation as it still relies on access to a reasonable side yard. The kitchen retains a door now on the side of the house, and the living areas dual doors are now shared one on the side and one to the rear. The entry consumes a good portion of the "service corridor" portion of the floor plan in this scheme. While there is a bit more storage as a result the home office area and utility room suffer for the loss of space to the foyer. It is possible that some of the mechanical equipment could find a place under the stair or in the new storage cabinets running on the outside wall between the kitchen and living room, but I did not want to assume that while laying out the plan.