Press kit no. 7556-02

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Press kit - Press release - Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects

Press Kit | no. 7556-02

Press release only in English

Cape Flats Aquifer Recharge Plant Wins Global Architecture Award

Cape Town, South Africa

SALT Architects

Civic infrastructure project reimagines water treatment as architectural expression.

Cape Town, South Africa, 2025-06-23 - 

The Cape Flats Aquifer Recharge Plant, designed by SALT Architects for the City of Cape Town, has received the Architizer A+ Award Jury Prize in the Factories and Warehouses category. The award recognises architecture that transforms technical and industrial buildings into meaningful contributors to the public realm. In this case, a facility dedicated to water purification and reinjection becomes an architectural gesture of care, where site, process, and architecture align with disciplined clarity.

Architecture as an agent of resource care

As water scarcity intensifies under the pressures of drought and urban growth, Cape Town’s long-term resilience strategy includes Managed Aquifer Recharge (MAR): a process that restores groundwater by treating and returning purified effluent to underground aquifers. The new recharge plant is a cornerstone of this system, both technically and spatially.


Water enters the facility via pumping from the adjacent wastewater treatment works and is directed to the highest platform on site. There it begins a gravity-fed journey: first through media filtration, then descending to a second level for ozone and biological activated carbon (BAC) treatment, and finally to a third platform for ultraviolet disinfection. Once purified, it is pumped into the aquifer below.


A built expression of clarity and care
The architectural language responds directly to this logic. Four long filtration halls span the site’s terraces, their orientation and detailing shaped by both technical function and environmental forces. Deep brick fins screen east and west façades from coastal sun and wind, while narrow south-facing openings allow controlled light and ventilation. The arrangement of solids and voids is not arbitrary—it responds to the needs of maintenance, ventilation, light control, and microbial inhibition. The facades’ layered articulation recalls gills or diaphragms, subtly referencing the plant’s role in purification.


At the head of the site, the two-storey administration component is integrated into the uppermost filtration building—its form continuous, but its character distinct. A glazed atrium, rhythmic brick brise-soleil, and finer façade articulation mark a shift from purely process-driven architecture to a more civic, human-scaled expression. The materials remain consistent, but their composition softens: more transparent, more porous, and more welcoming. This modulation signals the presence of offices, meeting spaces, and staff facilities—where the technical functions of the plant intersect with the daily rhythms of its human operators. Without departing from the industrial logic of the whole, this portion of the building introduces spatial generosity and a dignified interface between infrastructure and its stewards.


Infrastructure with a civic face
Although much of the facility’s heavy infrastructure is embedded below ground, within robust water-retaining structures, the above-ground architecture provides legibility and presence to an otherwise concealed process. The buildings neither mimic nor disguise their function. Instead, they give measured expression to the plant’s role in the city: not monumental, but composed, careful, and legible. The facility plays a visible role in the City of Cape Town’s water resilience efforts, occasionally serving as a point of demonstration and technical engagement. Its architecture communicates that even essential, process-driven infrastructure can be designed with intention, generosity, and civic awareness.


“This project is about more than water treatment, it’s about giving form to the idea of responsibility,” says the team at SALT Architects. “We believe public infrastructure should reflect the values of care, clarity, and civic dignity, even when the buildings themselves are utilitarian.”

A quiet model for future-making
The Cape Flats Aquifer Recharge Plant offers a measured but optimistic vision for infrastructure in the 21st century. By aligning engineering and architecture within a coherent spatial framework, it restores not only groundwater, but also public confidence in the built environment. Modest in appearance, but meticulous in execution, it shows how even the most functional projects can shape cities with intent, meaning, and integrity.

Technical sheet

Official Project Name: Aquifer Recharge Plant

Location: Cape Flats WWTW, Cape Town, South Africa

Client: City of Cape Town

Architect: SALT Architects

Civil & Design Engineers: Water & Wastewater Engineering

Project Manager & Structural Engineers: JG Afrika

Structural Engineer: WA Structural Design cc

Electrical & Mechanical Engineers: Cyntech

Geotechnical Engineers: Peregrine Consultants

Fire Consultants: PMC Consultants

Contractor: Stefanutti Stocks

Project Value: R 341 088 850.00

Project Completion Date: 2024

Photographer: Karl Rogers

About SALT Architects

SALT Architects is a Cape Town-based architecture studio focused on projects of public importance and long-term value. Known for its work in civic, industrial, and educational sectors, the firm brings clarity, humility, and design discipline to complex briefs—believing that even highly functional or mundane buildings can carry cultural and spatial meaning.

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Video credit: Dirk du Toit
Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin and Ozone building - Photo credit: Karl Rogers
Admin and Ozone building
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Site overview - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture - North Eastern view of the admin building  - Photo credit: Karl Rogers
North Eastern view of the admin building
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin and Media Filtration Building - Photo credit: Karl Rogers
Admin and Media Filtration Building
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin building brise soleil - Photo credit: Karl Rogers
Admin building brise soleil
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin and Media Filtration building facade - Photo credit: Karl Rogers
Admin and Media Filtration building facade
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin building perspective  - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin and Media Filtration building at dawn - Photo credit: Karl Rogers
Admin and Media Filtration building at dawn
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Admin building facade elevation - Photo credit: Karl Rogers
Admin building facade elevation
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Reception cubicle - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  First floor boardroom and breakout space - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture - Female locker room - Photo credit: Karl Rogers
Female locker room
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture - Male locker room - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture - Media filters - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Upper media filter gallery  - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  BAC building facade  - Photo credit: Karl Rogers
BAC building facade
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  BAC building's brick fin elevation - Photo credit: Karl Rogers
BAC building's brick fin elevation
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  BAC building's brick fin facade perspective - Photo credit: Karl Rogers
BAC building's brick fin facade perspective
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture - BAC filters - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  BAC building's machine Room  - Photo credit: Karl Rogers
BAC building's machine Room
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  BAC building's machine room  - Photo credit: Karl Rogers
BAC building's machine room
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture - UV building perspective - Photo credit: Karl Rogers
UV building perspective
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Final water pump station's brick fin facade - Photo credit: Karl Rogers
Final water pump station's brick fin facade
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Raw water pump station's interior - Photo credit: Karl Rogers
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Press kit | 7556-02 - Press release | Cape Flats Aquifer Recharge Plant Wins Global Architecture Award - SALT Architects - Industrial Architecture -  Lower media filter gallery  - Photo credit: Karl Rogers
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