Your Passive House questions.
Answered.

// Passive House design and consulting for architects, developers, and builders.
// We find the answers so you can build with confidence.

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ARCHITECTS

Designing high-performance luxury homes

You care about craft, comfort, and precision. We bring the energy science to match your design ambition — without compromising your architecture.

Single-family · Townhouse · Brownstone renovation

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DEVELOPERS

Building affordable multifamily at scale

You need certification, incentives, and energy performance that pencils out. We model efficiently and deliver documentation your review team will accept.

Affordable housing · Mixed-use · Multifamily

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BUILDERS

Getting high-performance details right

You're building it — and you need to know the assemblies will perform. Our standard assessment gives you clear, actionable guidance on envelope details, airtightness, and mechanical sizing.

Single-family homes · Custom builds · Renovations

ENERGY MODELING

Know before you build

We model your building's energy performance so you can make design decisions with real data — not assumptions. From envelope to mechanicals, every system is accounted for.

THERMAL BRIDGES

Find your hidden losses

2D and 3D finite-element thermal bridge modeling identifies where your envelope is bleeding performance — before construction begins. Every junction, every connection, verified.

CERTIFICATION

Cross the finish line

PHIUS and PHI certification management from schematic design through final verification. We handle the modeling, the documentation, and the review process - so you don't have to.

1
SHARE YOUR PLANS

Send us your drawings at any stage — from early sketches to full CDs. The earlier we're involved, the more impact we can have.

2
WE BUILD YOUR MODEL

We create a detailed energy model of your building — every wall assembly, every window, every mechanical system — in WUFI Passive or PHPP.

3
REVIEW TOGETHER

We walk through the results with your team. Where is performance falling short? What are the most cost-effective upgrades? Real numbers, real options.

4
YOUR REPORT

You receive a comprehensive design-phase report — a complete snapshot of your building's energy performance, with clear recommendations.

5
BUILD WITH CONFIDENCE

Construction proceeds with a fully documented performance target. We support you through certification and final verification.

BLDGTYP · ENERGY REPORT
PROJECT INFO
Heating
15 kWh/m²a
Cooling
8 kWh/m²a
Peak Load
25 W/m²
Foundation detail drawing

Understand your building's performance, before you build.

Every project receives a detailed design-phase report covering:

  • Annual heating and cooling demand
  • Peak load calculations
  • Envelope performance by assembly
  • Thermal bridge impact analysis
  • Mechanical system recommendations
  • Certification pathway and compliance status

CLEAR ENOUGH FOR EVERYONE.
DETAILED ENOUGH FOR AN ENGINEER.

OPEN SOURCE

BLDGTYP also builds and maintains Passive House Tools — the open-source toolkit used by Passive House practitioners worldwide. The same rigor we put into our software goes into every building we work on.

Code-driven Passive House consulting specifically for MA multifamily.

Massachusetts has become one of the most active Passive House markets in the country. The state's opt-in Specialized Stretch Energy Code recognizes Phius and PHI certification as a compliance pathway for new construction, and the Mass Save Passive House Incentive Program funds the work — from feasibility study through certification. We support MA architects and developers across both phases, from our new Massachusetts office.

01 · CODE PATHWAY

Specialized Stretch Code

The Massachusetts Municipal Opt-in Specialized Stretch Energy Code (225 CMR 22 Appendix RC for residential, 225 CMR 23 Appendix CC for commercial) names Passive House — Phius or PHI certification — as one of its published compliance pathways for new construction. Adoption is municipality-by-municipality and continues to expand each Town Meeting cycle.

02 · INCENTIVES

Mass Save Passive House Program

For multifamily new construction with five or more units in a Mass Save sponsor's service territory, the Passive House Incentive Program funds feasibility studies, pre-construction energy modeling, pre-certification, and per-unit certification incentives. Program eligibility requires a Passive House consultant certified through PHI or Phius — refer to the program page for current incentive amounts.

03 · OUR ROLE

Feasibility & Engineering

BLDGTYP is certified through both Phius (CPHC) and PHI (CPHD), meeting the Mass Save consultant requirement on either pathway. We deliver the full early-design scope: feasibility study, parametric envelope and HVAC analysis, WUFI-Passive / PHPP modeling, charrette support, and certification submission.

// Code adoption status varies by municipality and incentive amounts are updated periodically. Confirm current details with the Massachusetts Department of Energy Resources and the Mass Save program administrator before relying on them for project decisions.

9,000
Certified units in North America
90%
Reduction in heating & cooling energy
60
Years of proven building science
#1
Fastest-growing standard in the US

Ready to get started?

We work with architects, developers, and builders constructing to the highest standard. Reach out to discuss how we can help you with your next high-performance project.