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David Hertz - Studio EA | McKinley Residence
00/00/0000, 00:00 | Modern Residential Design
Green Alchemist's Residential Compound - The McKinley Residence is David Hertz's live in laboratory for modern - environmentally friendly - residential design. Converting common elements into green design, it's feature packed. The house is a true testament to David's commitment to the cause and to top it off forms a homely modern residence, showcasing practical design elements, fine tailored for a young family.

Aimed at "spreading the word", the Studio of Environmental Architecture is David Hertz's latest venture, leading the way in Eco friendly design and sharing what he's learnt both through his residential work and his own house. Many thanks to the team at Studio EA for the details on this house.
Overview
Designed as a new house when Venice was till a rough neighbourhood the house presents a relatively strong/protective façade at street level and uses enclosed balconies to extend the upper levels and take full advantage of sea breezes.
The house consisted of two pavilions connected by a bridge, and was already cutting edge (environmentally) through its use of Syndecrete®, which contains about 41% percent recycled content and is twice as light, with twice the compressive strength, of normal concrete. Syndecrete® is David's own development and one of many featured in the residence.
It is now a compound made up of four discrete two-story buildings linked by three enclosed bridges that all face onto the courtyard.
Style "Balinese Modern"

Working it through
There was only one snag in the whole process. David is staunchly in favour of green design, the mere fact of adding that much space nagged at him. "There's no getting around the fact," he says, "that on a purely ecological level, 4,400 square feet is a lot of house by most of the world's standards."
His solution was to make the house the greenest house of its size he'd ever seen. Hertz used this house as a case study for green building techniques. An array of 20 solar collector panels on the roof help generate about 70 percent of the home’s electricity needs, and other sections of the roof are given over to flat-plate collectors that provide hot water to the water heater, which then sends it into a radiant heating system in the concrete floors.
I've no beef with the results, David's family expanded and so has his residence, the house is all used and as much as we battle with the urges, who wouldn't want their own compound like this. David's innovative materials and willingness to push for a more environmentally sound house is exemplary.

The materials used were chosen carefully to support environmental sustainability and the design intent. Recycled and FSC certified sustainable woods such as Ipe, Mahogany, and Fir, are used throughout the house to complement the Syndecrete®.
The Syndecrete® acts inside the house as a kind of “solar sink” for passive solar energy transfer, storing up the sun’s warmth during the day, and thus keeping it from overheating the interior, and then slowly releasing that heat during the night. Syndecrete® flooring was chosen for several reasons; it eliminates mold and dust caused by carpet, requires less maintenance, and is more environmentally sensitive than carpet, wood, or other floor finishes.
In order to maintain excellent indoor air quality, David used zero VOC paint, and eliminated a forced air system and carpeted floors, and with them mould and dust.
Another bonus of these materials is the resultant durability and functionality of the house. Its for living in. Rather than begin a minimalist box (don't get me wrong they have their place) the house portrays both David's design innovations, but also the family's efforts, endeavours, favourite drawings, posters, toys, etc. And it's a tough house.
You can see here one of my favourite shots showing the utilitarian nature of the house, and how its designed for a family.

Yup, David's hosing it down, an ability that's now on the list for my house. You can also see that playful design feature to let the kids feel its their house too, a pint size door for them.

Green Credentials
Hopefully in the images, you'll spot some of these fantastic features.
- Passive Ventilation – eliminating the need for a forced air system the shaded front living area naturally ducts cool air up thought the house and stairwell, then out the temperature sensitive skylights.
- Solar Energy – an array of 20 solar panels on the roof supply around 70% of the home's energy needs
- Photovoltaic Panels and Flat Plate Collectors – providing hot water to the water heater and subsequently the radiant heating system in the concrete floors. David says to heat the place, with these panels installed takes about as much energy as a 60w light bulb, all taken from his solar array.
- Vacuum tubing on the roof, which uses a parabolic collector to focus the sun’s rays, provides additional hot water
- Recycled FSC certified sustainable woods such as Ipe, Mahogany and Fir
- That Syndecrete®, a light-weight concrete that uses 41% recycled content - it also holds various pigments and textures to form furniture throughout the house, like the kitchen bench, table and bathroom sinks.
- Zero VOC paints
- High performance heat-mirror glazing
- The pool system uses an ionization and silver filter, eliminating the need for chlorine
Layout
I've wanted to write about David's work for some time now as his preferred layout for houses draws from tropical bungalows and linked pavilions.
Phase-1
You'll note that he has separated the functional areas of the original house at the bottom, both vertically and horizontally into 4 boxes. The living and dining come entertaining areas at the front are split from the garage at the rear to form an external lounge/fire pit, one that tops my list for "ideal after work summer beer spot".

Above, the bedrooms retreats, with the master bedroom above the lounge, and the children's bedrooms, back away over the garage.
Second only to the fire pit, is the outdoor sleeping area off the master bedroom. In summer time, the enclosed balcony becomes a comfy, cool sleeping area.

Phase-2
This renders the children's original bedrooms as guest areas that convert into a large rumpus room for rainy days. To accommodate the three children as they grow older, David's given them more space (between them and their wing of the house) and space for their guests. They have a bedroom and studio area in the upstairs of the new wing, and mum and dad gain an open plan kitchen/dining area with a wall that opens up completely to the pool and inner courtyard formed between the two wings.
Results
This building is a successful study in architecture that is both aesthetically pleasing and environmentally responsible, whilst functioning as a pair of Levi 501s, hard wearing, sexy and a design classic.
Images
Slideshow
Plans

via: Many thanks to Christina at Studio EA
MacGabhann Architects - Tuath na Mara Residence
00/00/0000, 00:00 | Modern Residential Design
Armoured Longboat - Standing vigilant over a northern Fjord in Ireland, the Tuath na Mara Residence, by MacGabhann Architects appears solid as a rock. Zinc clad for resilience, the low slung house blends seamlessly into the heather-covered rocky landscape, its own seams, echoing the strata of surrounding rocks. Contrasting a well hunkered core, the roof line warps and twists upwards like wonderful grey weathered seaweed, revealing the surrounding views to the living areas.

Overview
The project's focus around the specifics of the site and putting the personal and particular experiences above the powerful and the public, seeks to create a mood which is meditative instead of tensing or relaxing.
The site is hidden from the public road and is accessed from high ground on the landward side where the first experience is of an elevated view of the site and the sea beyond. Therefore the importance of the roof, or fifth façade, dictated a metal zinc cladding which is suitable for both walls and roof. Said façade, mimicking the seaweed found on the shores beyond. The anthracite colour of the zinc makes the building camouflage itself into the heather landscape.
The roof of both living areas is flipped and directed in opposite directions and towards particular points in the landscape and sunlight. Both living areas are fully glazed, thus embracing nature and developing a conversation with it. By way of contrast the sloped slit windows of the bedrooms act as a counter point to the absolute horizontal of the ocean horizon.
In order to emphasise the fact that the owners were embarking on a holiday each time they entered the house, the step and entry ramp at the front door is disconnected from the building thus making the visitor step over a gap not unlike stepping from the static platform onto a passing train. Thus a physical step from the day to day life into this adventurous house.
Layout
The plan form was inspired by the traditional narrow cottage and is orientated towards warm southern sun. It contains three sleeping cells and auxiliary spaces in the middle with two living areas, one at each end, connected by a library. Glazing is relative to the function of the rooms, with the centre bedrooms and auxiliary spaces horizontally glazed with small landscape framing windows, while the end living areas are wide open to the surrounding views.
The roof rain water is drained by way of gargoyles making one aware of the elements even in the lightest of showers, thus reinforcing the connection between inhabitant and nature.
Client's Comments
For us, ‘Tuath na Mara’ is wonderfully paradoxical: profoundly contextual and strikingly free-floating.
It is contextual in two senses: Firstly it speaks to the built experience of both our families, being the width of a house on the west coast that has been in the family for generations, and having the name and some of the shape of a house built by a Scottish grandparent (‘Tuath na Mara’ equally well in Scots and Irish Gaelic). Secondly it is rooted in the Donegal landscape, or more precisely in the inter-tidal seascape with which it shares its colour and, very nearly, its location. From the sea, it is virtually invisible.
But it is also free-floating, both in the way it sculpts light internally, and in the way its design is part of a cosmopolitan architectural conversation that is above national boundaries. This global-local interchange marks it out as capable of belonging only to the 21st century.
Results
MacGabhann Architects have made, as the client describes, a wonderful modern escape. With integrated reference to vernacular buildings and the landscape, without compromising aesthetics and impressive modern design, I'm confident that this is not the last we'll hear from them in great residential design.
Plans
Project: Tuath Na Mara
Architect: MacGabhann Architects
Team Credits: Tarla MacGabhann, Antoin MacGabhann, Niels Merschbrock & Barry Maguire
Completed: 2006-2007
Awards: Royal Institute of Architects of Ireland, Public Choice Award
Best house 2008 Royal Institute of Architects of Ireland, Irish Architecture Awards 2008
Photographic Credits: Dennis Gilbert - VIEW Pictures
Natural Building Colloquium, 2008
00/00/0000, 00:00 | Green Home Building and Sustainable Architecture
I attended the Natural Building Colloquium held this year at the Orella Ranch overlooking the Pacific Ocean near Santa Barbara, California, at the end of October. What a magnificent setting this was to spend a fine week of connecting with fellow enthusiasts of the natural building movement. About 70 attendees shared our insights, stories, passions, songs, poetry, cooking, concerns, and labor. I came away with gratitude for the opportunity to interact with such caring people, and with a renewed sense of confidence that we will manage to help forge a sustainable future.This year’s Colloquium was organized by the Natural Building Network (www.naturalbuildingnetwork.org) and was hosted by Gunner Tautrim, who represents the sixth generation of this family living on this land since 1866. The accommodations were primitive, with only a small kitchen as enclosed space; the rest of the facilities were rustic pit privies, temporary solar shower stalls, temporary bamboo and tarp meeting spaces, and a nice lawn area. We brought tents for sleeping. All of this was happening with the grandeur of the Pacific coast as a backdrop, and the elemental simplicity and beauty combined to create an appropriate mood for contemplating the benefits of building naturally.
After breakfast each morning we would gather in a big circle on the lawn to review the various options for the rest of the day and share other thoughts. Typically the mornings were devoted to work on a sturdy, permanent, multi-stalled toilet facility that was already framed with wood. Gunner wanted the walls and a surrounding fence to be finished with natural materials, and there were many volunteers who formed teams to accomplish this. Mostly, split bamboo or recycled fencing was used for a framework, over which cob and clay finishes were applied.
Lunchtime often featured tables where specific discussions would occur, having spontaneously been announced at the morning circle. The afternoons were reserved for many concurrent presentations or discussions, so there were always hard choices to make about what to attend. During the course of the week, over forty different topics were explored, in a variety of meeting places. These ranged from the use of materials (such as bamboo, cob, adobe, and lime) to more theoretical discussions about engineering, thermal properties, efficiency, and design. One of the most popular forums was about codes and ways of improving the acceptance of natural building techniques by building officials. I will be writing about this topic in more detail in a future blog post.I shared one two-hour presentation about earthbag building around the world with a woman architect from Israel, who had brought plans for an earthbag residence that she was designing for a client there. First I talked about the history and development of this technique, and then profiled a number of projects that have been completed (see www.earthbagbuilding.com). After this introduction, the architect laid her plans on a table and we all discussed specific questions that she had about them. This was a great way to learn some of the basics of earthbag building, and then apply these concepts to a specific situation.
I was very pleased that a discussion was convened to explore the role that natural building can play in what was described as the “long emergency,” or the compounded effects of climate change, peak oil and other resource depletion, population pressures, and financial crises. Without this discussion I would have felt that we were negligent in addressing these most pressing issues. I plan to write another entire blog post about this. After dinner (which was always delicious and usually vegetarian), we were treated to a variety of programs or entertainment that emanated from our group. Mostly these were slide or Power Point presentations, but one night was devoted to a talent show with lots of music and some stand-up comedy…great fun. I showed lots of pictures I took when in Jeddah, Saudi Arabia a couple of years ago where I had been invited to discuss sustainable architecture with the faculty and students at the King’s University (see www.greenhomebuilding.com/weblog for my essay about the situation there) .
One morning, about half of us opted to attend a tour of historic adobe buildings in the heart of Santa Barbara. The earliest remnants date to the 1780’s when Spain authorized the construction of a presidio and the Santa Barbara Mission. Much of this early adobe construction was toppled during subsequent earthquakes, but recent reconstruction, using stabilized adobes, has returned the area to its original presence. I chatted (in Spanish) with the Guatemalan and Mexican crew who were making new adobe blocks for further repair work. On the return trip to the Orella Ranch, several of us made a detour to the nearby beach to dip our feet in the ocean. One of the delights of this event was the participation of James from Zimbabwe, Africa. This very engaging fellow brought with him pictures of a lovely little thatched cob circular building that he and some friends had made. He also brought his large thumb piano to serenade us with African ballads. This was a reminder of the deep roots that natural building has from all corners of the world.
All together this week of camping out in this spectacular place and connecting with these dedicated and compassionate souls has left me feeling heartened that we will find ways to overcome the enormous obstacles that lay ahead.On a very foggy night before we were to disperse the next morning, during our closing ceremony, we arranged ourselves in two large circles that faced each other. We (on the outer circle) were asked to assume the role of addressing our ancestors (on the inner circle) from some indefinite time in the future. When I did this I felt strangely like I was really speaking from the future. I told the young woman who was sitting across from me that I did not blame her for the difficulties that she and subsequent generations had endured. I said that the pattern was innocently established well before she was born. Industrialization was fashioned to improve life, not deteriorate it, and the consequences were not foreseen. And then I told her how much I appreciated the hard work she was doing to address and correct the mistakes of our ancestors. I said that because of the actions of her generation, we in the future were enjoying a simple and healthy life based on ecological balance, and that we owe her and many of her generation our gratitude for all that they did to make this possible. We then stood and embraced, the Future and the Present, for a moment of true compassion.
To see more of my pictures taken at this event go to flickr.com/photos/kellyhart.














