Eco Design – Architects & Consultants  is an architectural practice which specializes in ecological friendly green building and consulting. Established in 1998 by Andy Horn, the practice has been at the forefront of the green building movement in South Africa and has won a number of international awards in the field of sustainable design.

Eco Design’s cutting edge sustainable solutions have been widely published both locally and internationally and have earned them the 2004 Sustainable Building Best Practice award for Residential Projects in the Africa Region  and the Silver Holcim Award for Sustainable Construction in Africa and the Middle East 2005.


House Klipspringer goes onto site

A selection of project drawings 2021

After receiving all the approvals required, the owner builder Simon and his cousin, a professional contractor - Justin Poggen started with the foundation work for constructing House Klipspringer.

Located in Wild Rivers Estate in Mpumalanga, it promises to be a groundbreaking modern eco-construction for the area.As such, we have selected some of the drawings for this project to share.

The project is located just downstream of the confluence of the Olifants and Blyde rivers, situated on a rocky piece of bushveld ground with stunning south-facing river and Blyde River canyon mountain views.

The design nestles the house between the rocks and trees, taking full advantage of its gorgeous views while providing well-shaded spaces and lots of protected outdoor and open plan living.
It's hot up there, so the design responds with materials like exposed rammed earth, earthen floors and planted roofs. The forms of the main living space rise to the views, providing a sheltering u-shaped courtyard and then hunker down again to shade the bedroom wings on either side for a more bush lodge-like appearance.

The design also utilizes post and beam exposed trusses with pole rafters. There are vented openings against the timber whitewashed timber boarded ceilings to illuminate the roof spaces with natural light and allow for passive cooling with stack effect ventilation.
The courtyard opens up to the views and boasts a natural plant-based bio-filter for its swimming pool, and there is a winding staircase leading down to the adjacent river walks.

Klipspringer Presentation - September 2021 - click here
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Facades of the Future

Tune in here for the panel discussion where Eco Design's director - Andy Horn - contributes as one of the experts on the panel discussion's webinar discussing FACADES OF THE FUTURE - hosted by Marcus Evans Events , of which Andy Horn is one of the guest panellists.

The building's façade is the essential element and amongst the most challenging aspects of a building to design as it becomes the epitome of an iconic building. With technology accelerating at a rapid pace, advanced facade design changes dynamically. Understanding trend data around façade design and geometry helps us see the direction the future is moving in, and as façades become more sophisticated with technological advancements, there is so much more scope for innovation.

Join our webinar to discuss and debate the design and performance of next-generation facades and gain critical takeaways and proven insights on making your ideas become a reality. We bring together the best building professionals and experts to share insights on how facade ideas are brought to life.

To get access to this inspiring talk and presentation complete the simple registration at this link below:
Click here to register and view the content


Building With Straw: A Suitable Construction Material for East Africa?

The third talk session hosted by Localworks, held on 16th December, was dedicated to two speakers, Andy Horn and Eckardt Dauck, who introduced us to two very different ways of building with straw. Andy Horn who is a South African Architect and Principal of Eco Design Architects with over 24 years of experience demystified the notion of building with straw bales. He also showcased previously completed projects, shared his experiences and findings as well as the various experimentation's his firm has done with the material. We were also delighted about the presence of the founder of Zero Carbon Designs, Eckardt Dauck, who presented to us his made-in-Uganda Zero Carbon straw panel, and how it is being used in construction throughout East Africa.

Moon Phase Harvesting of "Moon wood" Timber for South Africa

Times & dates for Harvesting of Construction timber in 2021:


Next new moon = 11th May 9:59 pm     ....so 3 days preceding this ...so make it Saturday 8th May from 10:15pm until 9:45pm Tuesday 11th May
Following new moon cut 2 = 10th June @ 12:52 pm    .....so make it from 1pm Friday 7th June until Monday 10th June 12:45pm

- MAY: Saturday 8th May from 10:15pm until Tuesday 11th May at 9:45pm*
- JUNE: Friday 7th June 1pm until Monday 10th June 12:45pm*

*Note: We have given the actual time of the new moon plus min 15 minutes cut off time, before and after respectively for South African Standard Time (SAST).

*Note: For other regions in the Southern Hemisphere minus 2 hours to get to Greenwich Mean Time (GMT) and apply your local conversion

*Updated 07/05/2021

Please continue reading for more information about the MOON PHASE HARVESTING of timber


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Nieuwoudtville Award

Eco Design Architects was awarded the Holcim Award for Sustainable Construction 2005 & took silver in the Africa and Middle East Region for their designs for the Nieuwoudtville Caravan Site Upgrade

Click here for more info on the award.


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"E-WIRE" lights by Andy Horn

The Eco Design lighting range is made from local or recycled materials. Standing Floor Lamps, Desk Lamps, Pendant Lights and Chandeliers are available. The lamp stands are from locally moon phase harvested alien timber. Recycled car parts are used as bases. Various paper shades & low energy LED light bulbs provide good lighting and create a beautiful atmosphere.

Click here for more info & prices.




Eco Design is also specialized in dome construction. A couple of dome structures have been built. Click below to view images

Project 1

Project 2

We offer a number of construction & info manuals on our website on natural building technologies which specifically refer to the South African context. The info manual "A LIME DUNG PLASTER RECIPE" has recently been added to the collection.   Click here for more information.

All our manuals are also now available as E-Book downloads. Click here for the E-Books.