Independent building performance consultancy

Intelligence for resilient, high-performance buildings.

Building physics, low-carbon engineering and digital intelligence for confident design decisions and measurable performance.

Integrated expertise

Two focused service divisions.

Rigorous building-performance engineering, supported by practical AI workflows for architecture, engineering and sustainability teams.

01 — Building Performance

Engineering buildings for compliance, comfort and long-term performance.

Compliance & planning

  • Part L modelling and BRUKL reports
  • Energy and planning statements
  • BREEAM modelling support

Building physics

  • Energy modelling and optimisation
  • TM52, TM59 and thermal comfort
  • TM54 operational energy modelling

Low carbon & resilience

  • Net-zero and fabric-first strategies
  • Heat pumps and thermal storage
  • Future-weather and climate-risk analysis
02 — AI Productivity

Smarter technical workflows.

Secure, practical AI and automation designed around how built-environment teams actually work.

  • AI workflow and productivity audits
  • Technical knowledge assistants
  • Proposal and report automation
  • Data analysis and dashboards
  • Bespoke AI agents to boost productivity

Founder-led consultancy

Engineering insight that holds up in the real world.

BPI is led by Dr. Sanober Khattak, a building-performance specialist with more than 15 years of engineering, consultancy and applied research experience.

Our wider team brings expertise from around the world and industry experience on projects in the UK and the Middle East—from domestic homes to large-scale, multi-purpose buildings.

That practical experience is supported by 24+ peer-reviewed publications, giving our advice a strong technical foundation without losing sight of programme, cost and real-world delivery.

15+ yearsEngineering and building-performance experience
24+ publicationsPeer-reviewed technical work
UK & Middle EastDomestic to large-scale multi-purpose projects
Start a conversation

How we work

Clarity at every stage.

  1. 01

    Define

    Clarify the decision, risk and evidence the project needs.

  2. 02

    Model

    Build the right level of analysis—no more, no less.

  3. 03

    Interrogate

    Test scenarios, sensitivities and practical trade-offs.

  4. 04

    Communicate

    Turn results into a clear, defensible route forward.

Start a project

Have a building performance challenge?

Tell us what you are designing, assessing or improving. We’ll help identify the right next step.

Discuss your project