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Our Design Principles

Biophilic Design Biophilia is defined as the inherent human inclination to affiliate with Nature. Biophilic design, an extension of Biophilia, incorporates natural materials, natural light, vegetation, nature views and other experiences of the natural world, into the modern built environment. Bespoke Cabinetry Design Bespoke is a term in the United Kingdom and elsewhere, for an […]

Our Services

Project survey, on-site consults & Analysis Each site is inspected for its layout and how it functions. In-depth consults will help to conduct all the necessary requirements of the project before any design work is done. This information is then gathered and analyzed for design conceptualization. On-site consults are carried throughout the entire construction and […]

Market Segmentation

Our biggest responsibility to create spaces that are healing, rejuvenating & that function in a holistic interior. Our unique approach to including our design principals of Biophilic Design, Feng Shui and Bespoke Interior Design, colour & scent therapy into our practice, allows for us to be exclusive to the following market segmentation: NEW HOME CONSTRUCTION […]

About us

21Hz (pronounced twenty-one hertz) is the only 100% Black-owned creative studio in South Africa, offering a full turn-key holistic interior design service. What that means is; when it comes to the built environment, 21Hz is the only one that services a client from conceptualisation, space planning, material sourcing, construction work and installations (cabinetry & fittings), […]

Vision, Mission & Philosophy

Vision To be the most Authentic, forward-thinking design company to come out of Africa Mission For people to realise their truest potential within their personal spaces Our Philosophy “Life is too short for cheap design ”

Meet our Team

Leago & Kamo feed off of one another and join forces together to create spaces that help the occupants flourish in. Kamo Hartell MANAGING DIRECTOR Baccalaureus Technologiae: Interior Design Bespoke Cabinetry Specialist Kamo obtained her Diploma in Interior Design in 2013 and later went on to complete her degree in 2015 with Tshwane University of […]