About Herman calleja
Architect, Senior Environmental Consultant at ChapmanBDSP and tutor at the Architectural Association

There is a scientific consensus that the global climate is becoming warmer in a large part due to anthropogenic activities and it is mostly irreversible leading to hotter cities and desertification.
One of the solutions how buildings can respond to a varying climate is by having a skin that can adapt to a changing climate; metamorphose architecture. The concept is to design multiple façade scenarios for a given building façade such that over the first number of years the architecture is expressed in a certain language and in a period of time the façade may receive additional elements within allocated details that serve as shading devices. The idea is to prepare the façades with the required detailing to be able to alter parts of the facades, such as change the glazing ratio by replacing some of the glazing panels with opaque panels of the same size, or photovoltaic panels of the same size.
The IPCC has a number of potential global carbon emissions scenarios which in turn will result in an figure of temperature rise, however the exact figure is unknown due to a large number of variables. Hence this strategy would allow the buildings to adjust to the severity of the climate change that occurs down the line.
This would also allow for buildings to adapt and at the same time reduce waste generation when facades are refurbished, allow the integration of smart media and urban greening as required.
Featured articles and news
A change to adoptive architecture
Effects of global weather warming on architectural detailing, material choice and human interaction.
How big is the problem and what can we do to mitigate the effects?
Overheating guidance and tools for building designers
A number of cool guides to help with the heat.
The UK's Modern Industrial Strategy: A 10 year plan
Previous consultation criticism, current key elements and general support with some persisting reservations.
Building Safety Regulator reforms
New roles, new staff and a new fast track service pave the way for a single construction regulator.
Architectural Technologist CPDs and Communications
CIAT CPD… and how you can do it!
Cooling centres and cool spaces
Managing extreme heat in cities by directing the public to places for heat stress relief and water sources.
Winter gardens: A brief history and warm variations
Extending the season with glass in different forms and terms.
Restoring Great Yarmouth's Winter Gardens
Transforming one of the least sustainable constructions imaginable.
Construction Skills Mission Board launch sector drive
Newly formed government and industry collaboration set strategy for recruiting an additional 100,000 construction workers a year.
New Architects Code comes into effect in September 2025
ARB Architects Code of Conduct and Practice available with ongoing consultation regarding guidance.
Welsh Skills Body (Medr) launches ambitious plan
The new skills body brings together funding and regulation of tertiary education and research for the devolved nation.
Paul Gandy FCIOB announced as next CIOB President
Former Tilbury Douglas CEO takes helm.
UK Infrastructure: A 10 Year Strategy. In brief with reactions
With the National Infrastructure and Service Transformation Authority (NISTA).
Ebenezer Howard: inventor of the garden city. Book review.
Airtightness Topic Guide BSRIA TG 27/2025
Explaining the basics of airtightness, what it is, why it's important, when it's required and how it's carried out.