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The Hotwells Dock Project

Part 1 Project 2025
Antar Ghazoul
University of Bath | UK
The Hotwells Dock Project explores how wastewater spills in the UK are not only in part due to poor regulation and inadequate infrastructure, but are exacerbated by increased surface runoff due to clearing of wetland landscapes and the expansion of hardscaped developments.

Without natural landscape water retention, surface runoff flows directly into drainage infrastructure which - due to a combined sewer network - leads to overwhelming quantities of water, forcing wastewater spills and illegal discharges that result in detrimental effects on aquatic and riparian habitats.

As a response, the project creates a distributed architectural framework for wetland recovery. The Hotwells Dock building itself reuses industrial steel elements from Bristol’s past as a base for research, education and stakeholder engagement while filter feeders, molluscs and seaweeds are cultivated for water purification on piers below in the intertidal zone. Here, a living architecture is created where plastic collection and tidal energy systems harness the environment’s energy while cleaning it simultaneously. Outpost buildings upstream and downstream promote biodiversity to act as a catalyst for wetland repair by healing both the environment they inhabit, as well as expanding wetland areas - thus increasing the sponge effect of the natural landscape which mitigates flooding events, reduces surface runoff and eliminates wastewater spills.

Upon completion of the project aims, the supralittoral zone of the Hotwells Dock building can be dismantled and recycled, whilst permanent elements such as the seed bank and tidal energy system remain in place. Finally, the dock reemerges from under the building and is returned to the community as an outdoor bathing platform.


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2025
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