An ice cube in Logroño shows why a Passivhaus home resists heat, and why building well is the best answer to climate change.
A five-year cooperation framework with UIC Barcelona's School of Architecture, focused on Passivhaus research.
Open house in Valldoreix: a full retrofit with a 300 m² extension built to high energy-efficiency standards.

A preferred green-mortgage channel for developments, self-builds and retrofits to Passivhaus or equivalent standard.
The 2026 CTE requires measuring a building's whole-life CO₂. What changes for anyone who builds, develops or invests.

Extraordinary subsidies to recover empty homes in rural Catalonia. Up to 80% of the cost. Registration period open.

A guided visit to a finished project. Technical tour, Q&A session and an open conversation with the team.

Air can get in through invisible places and steal up to 30% of the efficiency. What the test measures, how it is solved.

Our own building system reaches the wider public. What it is, how it is built, what it offers.

Advanced insulation, airtightness, mechanical ventilation and predictive home automation. The 5 technical pillars today.

What goes into the budget, what stays out and which extras turn up halfway through the build. An honest guide.

Natural materials, smart ventilation, adaptive membranes. The developments that are changing the sector.

Certified timber, natural insulation, recycled materials. What we build today with what nature offers.

K-Alzina, 180 m² at the foot of the massif, FSC timber structure, a saving of 23 tonnes of CO₂.

How much CO₂ it takes to build a home and live in it for 50 years. Conventional vs Passivhaus.

How a home's airtightness is checked. The test is mandatory for Passivhaus certification.
.jpg)
The standard combined with bioclimatic architecture. Environmental benefits quantified for the region.
.jpg)
Mechanical ventilation with heat recovery. Controlled CO₂, optimal humidity, clean air around the clock.

Three of our homes kept their electricity during the blackout of 28 April. What they had in common.

The hidden cost of heating and cooling your home. How Passivhaus cuts annual spending by up to 90%.

Self-densified timber nine times stronger. What it means for twenty-first-century architecture.

Real cases: Catalan families paying less than 30 €/month for annual heating.

Not just efficiency. Thermal comfort, acoustic quality, air quality, a 100-year lifespan.

A conceptual tool from BLOXHUB. A comparison of materials by embodied emissions in construction.

How Eskimohaus homes help slow climate change. An honest calculation, tonne by tonne.

European regulation on deforestation-free products. What changes in the supply chain.

Insulation, windows, airtightness, thermal bridges and ventilation. The foundations for using 90% less.

An in-depth look at the building system that delivers maximum comfort with minimum consumption.

An open session with experts from the sector. Construction, materials, systems and budget.

A guided visit to the new Passivhaus Plus home in Sant Cugat. Technical presentation and tour.

A comparative analysis, retrofitting an existing home or starting a new build.

We refresh PAPIK Group's visual identity. What the change reflects and why now.

An open visit to the first certified Passivhaus Plus home in Catalonia.

A visit for the Day of the Carpenter to the municipality's first certified Passivhaus.

Key decisions before starting a single-family project. What to prioritise, what to leave for later.

An award in the construction sector for innovation in highly energy-efficient homes.

A milestone for the municipality, the first home with the official seal. An event open to the public.

A unique project. Design, budget, schedule and the technologies applied.

A technical analysis of how Passivhaus homes behave in our climate, not in the north.

A summary of our participation in Spain's most important sector trade show.

A conversation on the local channel about the design and construction of high-efficiency homes.

Why timber is the best building material available today. Renewable, versatile, efficient.

A translation of the interview with Dr. Wolfgang Feist marking 25 years of the concept.

The environmental impact of the cement industry and the advantages of efficient construction.

An article from the last week of the year. Extreme construction and a Christmas prank.

A reflection on government support for the efficient construction sector.

A comparison with international subsidies. How much room Catalonia still has.

A training session in the province on nZEB and Passivhaus standards.

A presentation in the north. A reference to the best-performing passive house in Spain.

A call to take part in the Construction21 awards. Vote for our entry.

An open visit to the Palau passive house. Get to know its residents up close.
.jpg)
An international call for passive and ecological projects.
.jpg)
Taking part in the sector trade show with a proposal centred on climate-conscious construction.

A translation of the interview in the major newspaper with British architect Alex de Rijke.

An original article on the hidden cost of residential energy. An introductory concept.

Handover of the region's second certified Passivhaus at 1.200 €/m².

A sector conference presenting the certified projects in the region.

A vertical extension of an existing home, 54 m² added to the upper floor.

A conversation about Passivhaus construction and sustainability in timber building.

A local conversation about the growth of sustainable construction in the municipality.

Summer training programme for industry professionals. Registration open.

Documentation of the start of works, foundations, site preparation, first phases.

Final presentation with 3D visualisation and complete energy modelling.

National event bringing together architects, builders and interested parties.

Feature in the major newspaper on mechanical ventilation systems with heat recovery.

Initial phase, requirements, demands, first proposals with 3D modelling.

First article in the series documenting the entire process of a passive house.

Summary of the national conference via social media. Technical and commercial highlights.

Programme of the annual conference with all the main sessions.

TED talk on timber skyscrapers as a solution to climate change.

Documentation of Hōryū-ji, the oldest timber structure in the world, dating from 607 AD.

Presentation of a lakeside hotel with certified rooms.

Criteria and open registration for the international passive projects award.

TV3 programme on the rising cost of residential energy and how to reduce it.

Update to the Passive House Planning Package. Improved calculations for designers.

App to discover and navigate the town's local retail fabric.

Interview on whether energy certification should be mandatory by law.

An introductory definition of a passive home. Minimal consumption through efficient design.

The state of Passivhaus in Spain. Market, certifications, outlook.

The range of architectural styles possible with timber construction.

Forest Stewardship Council. What it certifies and why it is key for responsible timber.

The etymology and history of the concept. From the 1980s to its contemporary German refinement.

The mandatory energy certification system for buying and selling property.

A case study of extension and retrofit that improves the home's overall efficiency.

A summary of the content via social media. The sector's main highlights.

The annual programme with market developments and technical innovations.
.jpg)
Insulating capacity, what it measures, how it is calculated, why it makes the difference in comfort.
.jpg)
Video archive from the 2009 trade fair. First presentation of our innovative proposal.

Feature in the national newspaper on alternative construction during the sector's crisis.

TVE report on the construction trade fair and innovation in efficient housing.

A reference app with every timber species. Available on the App Store.

A detailed technical annex on airtightness calculations and transparent methodology.