low energy architectural & environmental design

Current Work and Topics              (open in a new window)


stair1_028Passivhaus New build and Retrofit Projects

CMCC Passivhaus Cohousing scheme with Anne Thorne Architects - the construction is ongoing in Colchester.
Timber structure, 23 houses and flats with a common house.

An old stone house renovation scheme (left: model photograph) on green belt land has gained Planning consent and it is the technical design stage.

PHTMHLFinalist UK Passivhaus Awards 2016 - project gallery

House in York  detail

1540akermancompletionCompletion 15-40 Collective project for Retrofit + 3 new build Passivhaus, Akerman Road in London        February 2017


15-40onsite15-40 Collective on site for Retrofit + 3 new build Passivhaus, Akerman Road in London        December 2015

15-40launch15-40 Collective was officially launched at the Building Centre, London on 28 October 2014

We welcomed over 100 invitees to the event of our presentations on "WHY 15-40" the metric of 15 to 40 kWh/m2yr for space heating and what they exactly mean for a typical project, followed by discussions.
We've been working together on several projects by sharing a commitment to radically reduce the energy consumption of buildings.


We're pleased to announce the launch of the NEW WEBSITE by the15-40 collective of low energy architecture practices

We invite you to browse this new website and would appriciate any feedback. www.15-40.co.uk                         July 2014

psithermPassivhaus project current work - dealing with thermal bridges

psi-values, the measurements of heat loss in a liner thermal bridge are put in the PHPP (Passive House Planning Package).
In a low-energy building, the influence of thermal bridge is significant as an extra heat loss.     May 2014

SketchUp and Passivhaus

design PH has been developed by Dave Edwards, the Passive House Institute, to provide a 3D modelling interface that works together with SketchUp and PHPP (Passive House Planning Package).
Junko has participated in the development and improvement of this plugin. http://designph.org/


Passive Design

Junko will give some talk about passive design this summer in Kobe, Japan.

kiitoLectures will be given as volume two of the "Piece-of-future lab" series of lectures at KIITO, Design and Creative Centre Kobe.

Title: A Passive Design Rethink
In the 1970s "passive  design" emerged in opposition to "actively" or mechanically serviced architecture, which was damaging natural ecological systems by consuming energy excessively. It was seen to be jeopardising the very basis for a sustainable future.
These lectures visit the historical background of passive design and current passive architecture in the UK and Japan. A discussion about its application to current ways of living follows.

14 July 2013 lecture 1 (90 minutes)
What is passive design?  Historical background, vernacular architecture and the idea of  "passive versus active".
The lecture will address passive design, not just as a view on architectural style or technique but also as choices to be made in life-style.

14 July 2013 lecture 2 (90 minutes)
A review of the current evolution of "passive" with technology, methods, and building science.  More examples from Europe and the UK.

15 July 2013 Talk session with Mr.Takashi Serizawa, Executive Director of Design and Creative Centre Kobe, and P3 art and environment
Passive design and our future - Discussions on passive technologies that suit the culture and climate in Japan. Modern solutions for domestic living, for lives that will need to be lived with a smaller consumption of energy.


Cooling in hot & humid climate

Passive House Conference in Frankfurt 19-21 April 2013 report -
This report would be more attractive in Japanese >link for cooling dominated climates, where energy calculations for cooling have been more complex than for heating.
One of my highlights at the international PH Conference was a session by Jessica Grove-Smith of the Passive House Institute, "PHPP calculations in hot and humid climates".
The newest Passive House Planning Package (PHPP), V8.1 (2013) English version, will be released this summer. The Institute has reviewed the PHPP for active cooling dominated situations.
It highlights two aspects of cooling - sensible cooling (temperature) and latent cooling (humidity) more than ever.
Also, I saw that some people have been tackling on a similar topic in Australia and America. The PHI has got on especially with Mexican experiences and development of a simplified PHPP, "DEEVI" tool.
(The photograph is from some years ago, comfort by a micro-climate control in the middle of urban setting.)
news pond

More in album >jump

More about Passivhaus