Mill Harbour Village is a 2.6 hectare site with structures comprising 1500 apartments across six blocks, leisure facilities and commercial space. We were engaged by Ballymore at an early stage to conduct a joint study with Glenn Howells to rationalise a consented scheme to minimise build costs. In their studies, Walsh engineers optimised layouts, regularised footprints and centralised cores to maximise structural efficiency. We also proposed outrigger walls and post-tensioned slabs to provide sufficiently robust structures while further minimising material use. Rather than onerous build over obligations, our team of specialists designed and obtained approval for the early diversion of an existing trunk sewer that crossed the site. These diversion works were completed in early 2020 ensuring a clear path for piling works to commence on time.