Passivhaus Services

Evergreen Design Studio is a Certified Passivhaus Designer and offers a wide range of sustainable design services which can also run alongside our Architectural Services

Passivhaus Design Package (RIBA Stages 0-3) - Planning

Our Passivhaus Design package runs alongside our Developed Design Package. This option ensures the concept and developed design of the proposal is carried out in a manner that means the scheme has the ability to meet a specific Passivhaus Institute energy standard, including Passivhaus and EnerPHit, either Classic, Plus or Premium or PHI Low Energy, or others offered by bodies such as the AECB.

In addition to the deliverables in the Developed Design Package, this service offers an initial basic PHPP (PassivHaus Planning Package) model based on Passivhaus rules of thumb, standard details and assumptions on energy usage and renewable generation. This information is added to the Design, Access, Planning and Sustainability Statement for the planning application and ensures the design is capable of meeting the desired standard during the technical design stage.

Passivhaus Technical Design Package (RIBA Stages 4-6) - Post Planning

Our Passivhaus Technical Design Package can be commissioned in isolation or as an add-on to our Passivhaus Design and Developed Design Packages. Post-planning approval, the main bulk of the Passivhaus technical design runs alongside the preparation of the Building Regulation package.

Our package includes:

  • Passivhaus design drawings

  • PHPP model

  • Passivhaus construction detailing

  • Liaising with other consultants and suppliers - MVHR, ASHP, solar PV, windows etc to obtain information for PHPP model

  • Liaising with Passivhaus Certifier to gain pre-construction certification

  • Advising on issues arising on site relating to Passivhaus compliance

  • Instructing contractors on documentation requirements for submission to Passivhaus Certifier

  • Compilation and submission of final pack to Certifier for full Certification

Standalone Consultancy

We offer Passivhaus and sustainable design consultancy for other construction professionals where we are not carrying out the design work. We are happy collaborating with other professionals from RIBA Stage 1 to ensure the initial concepts are capable of meeting the desired standard and assisting throughout the entire project duration as outlined above.

We are not against taking on a design at Stage 4 (post-planning) to try and achieve the desired standard, though this can sometimes be more challenging depending on how the initial design work has been carried out. We offer an initial appraisal service where we can look at the feasibility of reaching a particular standard on a given design and where possible suggest simple modifications to help meet a standard if it looks like it will fall short.