Ben SnapePassivhaus has crossed 1% of all new UK housing, the Passivhaus Trust called the start of “exponential growth.” The Trust’s target is 10% by 2035. That is a tenfold increase in under a decade.
For architectural practices, that trajectory means one thing: the market for Passivhaus-capable architects is going to be substantially larger than it is today, and the window to build credentials and pipeline while competition is still low is right now.
The built environment accounts for up to 30% of UK greenhouse gas emissions (RICS), the Future Homes Standard is reshaping the regulatory floor, and Scotland is pushing towards a mandatory Passivhaus-equivalent for new builds expected by 2028.
Firms that act in 2026 will have certified projects and testimonials when the demand surge hits. Those who wait will be competing in a crowded market without a portfolio.
The UK Passivhaus market in numbers
According to the Passivhaus Trust, there have been 2,250+ certified Passivhaus homes in the UK as of February 2025, with 8,000+ in the pipeline. That pipeline represents 1% of all new UK housing, and the Passivhaus Trust’s target for 10% of all new homes by 2035, which means a tenfold expansion.
~60% Of new schools in Scotland are targeting the Passivhaus standard, enabled by Scottish Futures Trust funding mechanisms.
23 Welsh social housing providers now include Passivhaus as their suggested enhanced standard in the ‘Tai ar y Cyd’ Pattern Book.
2025 was a record year for certifications in the UK (Etude, a leading UK certifier, crossed 100 certified buildings in 2025, calling it “a record number in a single year”).
These housing policy statistics translate directly into procurement for architectural services. Think of it the following way: every Passivhaus project needs a certified designer, and every social housing authority adopting fabric-first targets is a potential client.
Why the regulatory window is now
The Future Homes Standard (FHS) will require all new homes in England to produce 75-80% fewer carbon emissions than those built under current regulations. The legislation is due in late 2026, with full compliance required from December 2027 onwards.
This is the single most significant shift in English building regulations in a generation:
- no new gas boilers
- significantly higher fabric performance
- mandatory airtightness targets
- mechanical ventilation with heat recovery (MVHR),
- and a lot more.
But here’s what practices need to understand clearly: the Future Homes Standard is not Passivhaus.
FHS sets a new compliance floor, but it doesn’t demand the rigour, the verification, or the performance certainty that Passivhaus certification delivers. A building can meet FHS and still have a poorly commissioned MVHR system, thermal bridges that don’t show up in SAP, and a real-world energy performance that diverges significantly from its modelled one.
Passivhaus, by contrast, is a whole-building methodology with independent certification. Every design detail is modelled in PHPP (the Passive House Planning Package) and tested against a fixed set of physical criteria.
In practical terms, FHS will make Passivhaus-adjacent knowledge a baseline competency for any practice doing residential work.
But in 2026, Passivhaus certification itself becomes the premium offer, because it is the demonstrable, independently verified step above the regulatory minimum.
Developers, housing associations, and sustainability-conscious private clients will increasingly want that assurance, and they will pay a premium for practices that can genuinely deliver it.
What Passivhaus services can architects actually offer?
Passivhaus capability isn’t a single thing but a family of related services that practices can build out incrementally if they want to prepare for the trend properly.
Below is a realistic breakdown of what you can take to market, roughly ordered from the most common entry point to the more specialist end.
1. Passivhaus new build design (residential)
This is where most practices start. It involves PHPP modelling, fabric-first detailing (insulation levels, thermal bridge-free junctions, triple glazing specifications), as well as MVHR integration and airtightness coordination on site.
The workload is front-loaded in design stages, which is where architects spend the most time anyway.
The cost uplift to the client is now under 8% when factoring in the savings on heating equipment and reduced running costs. Residential self-builds and small developments are the natural first portfolio projects for practices building this capability from scratch.
2. EnerPHit retrofit design
EnerPHit is the Passivhaus standard for existing buildings. The target (a space heating demand of no more than 25 kWh/m²/year) is tougher to hit than it sounds, because you’re working with an existing structure and its constraints.
Budget around £1,000–£1,500/m² for a thorough deep retrofit to EnerPHit.
The RIBA’s position is that Passivhaus principles should be applied to every retrofit, whether or not full certification is pursued.
In practice, this gives architects a consultancy offer that sits just below full EnerPHit — useful for clients who want the methodology without the certification cost.
3. Social housing retrofit procurement
Housing associations and local councils are the most active institutional clients in this space right now.
They have access to Government retrofit funding, they have large portfolios in need of deep upgrade, and they are increasingly writing their procurement briefs around Passivhaus and EnerPHit principles.
To compete for these contracts, your practice needs not just Passivhaus credentials, but also PAS 2035 literacy, which is the overarching framework for domestic retrofit in the UK.
Renfrewshire Council’s EnerPHit £100 million contract covering 3,000–3,500 homes is a visible example of the contract scale available, and the general sentiment is that it’s just the beginning.
4. Non-residential Passivhaus (schools, offices, community buildings)
The schools market in Scotland is a notable example: around 60% of new schools in Scotland are targeting the Passivhaus standard.
This is already an active procurement policy: offices, community centres, and health buildings are all viable Passivhaus project types, and practices with a non-residential portfolio should be looking at these sectors specifically.
5. PHPP Modelling and thermal bridging analysis as a standalone service
Not every client will want a fully certified project. Many developers and contractors working toward FHS compliance will commission PHPP modelling or thermal bridging analysis without pursuing certification.
This is a great entry point for practices that are building Passivhaus capability but don’t yet have a certified project to point to. It generates fee income, builds in-house PHPP competency, and starts the client relationship in a space where the practice can credibly demonstrate value.
6. Passivhaus-informed retrofit planning (without full certification)
This is a step below EnerPHit certification, but still a distinct, marketable service. It involves modelling an existing building in PHPP, identifying the upgrade measures that would get it closest to EnerPHit performance, and producing a phased plan you could charge for.
It’s particularly useful for private homeowners and smaller housing associations that want a fabric-first retrofit approach but can’t justify the full certification process.
In terms of business growth, it positions your practice as the natural choice to manage any subsequent phases if the client decides to pursue certification later.
Getting qualified – Passivhaus certifications and costs
Below is a list of all Passivhaus-related certification options – not everything is necessary, but these courses can give you ideas for developing your practice’s skills.
Certified European Passivhaus Designer (CEPH)
This is the core qualification that’s required to design and certify Passivhaus projects. Currently it is delivered by several UK providers:
- BRE Academy ~£2,580 + VAT (Passivhaus Trust members receive a discount)
- Coaction Training CIC (starting at £2,150) – flexible online/in-person delivery
- South West College (GRASP-funded) – £1,200 total, reducible to £0 for eligible candidates
Certification lasts 5 years and is renewable via CPD, completion of a Passivhaus project, or further courses. On passing, you’re listed on the Passive House Institute’s public designer register.
Certified European Passivhaus tradesperson (CEPH Tradesperson)
This option is good for practices managing delivery teams as it helps structure and quality-assure contractor relationships on site – see the training event list here.
PHI-Accredited Passivhaus certifier
A separate, higher-level credential. Certifiers independently review completed designs and construction information, but they cannot also be the designer on the same project.
Certification fees range from around £1,500 for basic projects to £8,000 for comprehensive support packages.
Here’s how to become a certifier.
Passivhaus Trust Learning Hub
Not a formal qualification, but a practical starting point for CPD and background reading before committing to a full course.
The project management reality
Passivhaus projects are more document-intensive, more coordination-heavy, and more quality-sensitive than standard builds. Practices that don’t account for it will find the additional complexity eating directly into fee margins.
The PHPP model needs to be maintained and updated across every design stage, not just produced once at the start and filed away. Potential certifier reviews introduce structured feedback loops with formal response requirements. Throughout the whole process, the documentation trail that supports certification has to be kept current, complete, and accessible.
For most practices, this means more moving parts than a typical residential or commercial project. If your firm is managing this using a combination of email threads, shared drives, and spreadsheets, the overhead is significant.
Passivhaus-compliant design is exactly the kind of multi-stage, document-heavy workflow that PlanMan is built for. These are the main features worth knowing about in this context:
- Document Management is the centralised cloud storage for all project documentation, accessible by the right people at the right stage, without the version control problems that come with shared drives.
- Client Communications for all client emails stored against the relevant project, so certifier correspondence, client sign-offs, and contractor queries are traceable and searchable.
- Co-consultants module to manage external relationships with certifiers, airtightness testers, and specialist engineers without losing visibility of where each party is in the process.
- Project Management platform for stage-by-stage oversight of the full project lifecycle, with the kind of milestone tracking that Passivhaus delivery requires.
- Invoice Management to tie fee drawdowns to stage completions cleanly, so the additional stages a Passivhaus project involves don’t create billing complexity.
The commercial case for Passivhaus services depends on being able to deliver them efficiently.
The right operational infrastructure is a part of what makes the service viable at a fee level that works for your practice.
Try PlanMan free today!