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Passive House Design & Build

Low-energy homes planned around comfort, envelope logic and delivery.

We connect architecture, envelope decisions, airtightness, ventilation and site coordination so energy performance is designed into the project rather than patched later.

EnvelopeAirtightnessHRVComfort
Passive house energy strategy with solar panels and rainwater harvesting

What this service is

PHPP-driven low-energy homes planned around comfort, envelope physics and build delivery.

We design and deliver passive-level homes by coordinating insulation, airtightness, thermal bridges, HRV, high-performance windows, BIM, permits, tender support and site QA.

Landowners

Self-builders and owners who want Passive House-level comfort and predictable performance.

Developers

Projects where low operating cost and marketability matter.

Remote clients

Owners who need architect-led coordination through design, tender and construction.

Design & build

Projects that need a route from PHPP decisions to site QA and handover.

What you get

A performance strategy that is designed before it becomes expensive to fix on site.

01

Envelope optimization

U-values, insulation strategy, glazing ratio, orientation and shading.

02

Airtightness

Air barrier logic, junction details and blower-door test planning.

03

Thermal bridges

Junction psi-value reduction and detail strategy.

04

HRV ventilation

Balanced supply/extract, filtration, acoustics and maintenance access.

05

PHPP modeling

Targets, variants and result summaries for decisions.

06

BIM and site QA

Permit drawings, schedules, tender support and construction checks.

Process & timeline

From comfort targets to permit-ready documentation and construction QA.

A typical one-off home moves through concept, BIM and permits, tender, contracting and construction. Authority timing, size and system choice affect the programme.

1

Brief and targets

Comfort, energy, budget, preferred systems and climate assumptions.

2

Concept and PHPP checks

Massing, glazing, shading and early performance testing.

3

BIM and permits

Coordinated plans, sections, details, schedules and specifications.

4

Tender and contracting

Pricing support, BOQ/VE support and contractor clarifications.

5

Construction QA

Site checks, airtightness tests, commissioning and handover records.

Fees

Passive House & Design and Build typical fees.

The parent page includes design scope ranges, delivery fees and quick examples. They are rebuilt here as cards plus a real table.

EUR 1,000-6,000 testing / certification items

Tests & Certification

Best for: Performance verification and optional third-party certification.

Specialist performance checks are usually priced separately from design scope.

Included
  • Blower-door tests: EUR 1,000-2,500 per test stage, usually two stages
  • Optional PHI certification: typically EUR 3,000-6,000
  • Commissioning and documentation coordination where included in scope
Indicative ranges; ex-VAT, excluding surveys, authority or utility fees, lab testing and third-party certification unless explicitly scoped.

Quick examples from the parent service page

Home sizeAssumed build costDesign (9-12%)GC/CM 10%Tests & cert. est.
120 m2EUR 1,600/m2 -> EUR 192,000EUR 17,000-23,000EUR 19,200EUR 3,000-6,000
180 m2EUR 1,700/m2 -> EUR 306,000EUR 27,000-37,000EUR 30,600EUR 3,000-6,000
250 m2EUR 1,800/m2 -> EUR 450,000EUR 36,000-50,000EUR 45,000EUR 3,000-6,000

Why it matters

Passive performance is a coordination problem as much as a specification problem.

Comfort, low running cost and airtightness are won through early decisions, consistent details and disciplined QA rather than a single expensive material choice.

What we need from you

Plot survey/topo, constraints, target area, preferred systems, budget envelope and timeline.

Deliverables

PHPP model, BIM drawings, airtightness details, junction catalogue, tender package and QA checklists.

Quality tests

Blower-door testing, HRV balancing, commissioning and as-built documentation.

Design freedom

Passive performance is not one visual style; we keep the physics right under the chosen architecture.

Passive house villa facade in a pine forest

Planning a low-energy home?

Send the plot link, target area and performance goals.

We will confirm the right scope: PHPP pre-check, concept, permit package, tender support or design-build coordination.