This page lists quantative design requirements for the baystead. Baystead aims to be a proof of concept for seedstead.
The purpose of baysteading is to start near existing economies and social networks. We assume that baystead will operate in the SF bay (although other suggestions are welcome!). Anchoring at arbitrary places in the SF bay is forbidden, so baystead will have to be docked. The deepest waters at the docks seem to be about 20 meters Hence, we will asumme a maximum draft of 20m. This information has not been checked with regard to potential legal restrictions, further limiting this number; such a check is most welcome.
The target capacity for baystead is somewhere < 50 people. Obviously, multiple smaller seasteads would attain the same goal, if we were capable of constructing them.
The aim is to provide only residential space, not a mini-city. These calculations are aimed at making a comparison with costs of living. We use 50m2 residential space per person as a goal. In case both public spaces and business are included, 100m2 per person is assumed.
The price per unit area should be minimized. We aim for something at least below 1000$/sqft, or 10k/m2. See: Affordable. A structure like clubstead promises 4000-3000$ per square meter.
For a 50-person baystead offering only residential space, or 2500m2, that would translate to a budget of around 10M usd.
We can regard the cost of the seastead as consisting of seperate categories, such as structural, infrastructural, and accomodation. Purely for the accomodation units, the clubstead report assumes 160$/sqft, which is a high-end total cost for furnished US hotel rooms. Figures for bare real-estate, without the high-end furnishing would be good to have, as well as cost-figures for accomodation actually built for the sea (likely includes a premium).