Having already crowd-funded the design project in alliance with the co-founder of Paypal and surveyed potential customers for their requirements and specifications, the Seasteading Institute has partnered with the Dutch aquatic urban design firm, DeltasSync, to engineer an architectural seastead design. Reinforced Concrete has been finalised a s the strongest, most economical and sustainable material for building the square and pentagonal hollow block platform modules which will have 50 m sides and will be 50 m in height. These modules once floated can be joined like the pieces of a jigsaw in different patterned combination according to the requirement. On these platforms will be erected the elements of the city which are a maximum of three storeys high residential and commercial buildings, apartments, terraced housing, office space and hotels as well as open green spaces and aquaculture farms. Protection from storms and high waves is provided by the really high platform height and its potential to bob up and down riding on waves, aided by stabilisers and wave breakers placed around. These wave breakers are also expected to harness energy from the waves and contribute to the colossal amount of alternative energy like solar and hydroelectricity proposed to be produced on the seastead, making it completely fuel-free. The preliminary concept for the pilot project in the waters near Tahiti completed by DeltaSync is of 11 such modules with an estimated project cost of $167 million.