to be serious i think architects can bring a lot to a housing scheme. off the top of my head,
with a wealth of information an architect should have amassed over his/her education
they can infinitely improve the quality of the development by capitalising on opportunities like aspect in relation to sunlight, community spaces, thresholds and semi private areas which are condusive to more successful social interaction and hence a better place to live.
by breaking away from the monotonous mould of mock country cottage, semi detatched housing that plauges dublin, a proper community identity can be created through individually designed homes which involve thought and address specific needs of future residents.
basically by not being so shortsighted, a developer can make a larger profit by building houses which are far better places to build for the same construction money, reaping a higher price by adding an element of thought out design. as opposed to repeatedly plonking the same building around the plot with no reference to anything