Say Hello!

If you’re considering a project to improve, extend or remodel your home – or perhaps, you have a plot of land you’d like to build a new house on – now is the perfect time to start.

We would be delighted to discuss your project with you.

Say Hello!

We would be delighted to discuss your project with you.

    We would be delighted to discuss your project with you.

    In order to help inform an initial discussion with you, and to give us a better idea of your expectations and any more specific requirements, it would be very helpful if you could please fill in the below form.

    * Indicates required information

    Your Details

    About the Property

    About the Project

    What type of property are you planning works to?*

    FlatDetached houseSemi-detached houseTerraced houseMaisonettePiece of land / siteNon-residential building for conversion

    What type of works are you hoping to undertake?*

    New build propertyConversion from a non-residential buildingRear extensionSide extensionPorch extensionSingle storey extensionDouble storey extensionLoft conversion / extensionBasement conversion / extensionInternal reconfigurationKitchen refurbishment / remodelBathroom refurbishment / remodelSomething else

    What Long do you Envisage Staying in this Property?*

    Do you have any Sustainability / Energy / Environmental Requirements or Goals?*

    Leti or AECB or Enerphit or Passivhaus goalsThermal improvements to your existing walls / floor / roofReplacement windows and doorsAir or ground source heat pumpNatural / organic insulationLow carbon construction methodsI'm keen to incorporate enhanced thermal performance, beyond the Building Regulations minimumNo, I only want to comply with the minimum Building Regulations requirementsI'm not sure, but am interested to learn moreSomething else

    Please confirm by checking the box below that you are happy for us to collect and store your data. All data is confidential and is for use by Keri Barr Architects only. It will not be shared without your permission.


    Do you have a Passivhaus, EnerPHit, AECB new build or AECB retrofit project – or something similar?  Whether you’re just looking for an initial steer, or whether you’d like to achieve certification – through the use of the Passivhaus Planning Package (PHPP) and natural building materials, we can offer guidance and advice to support your design team.

    The PHPP is a planning tool that considers a wide range of characteristics to provide confidence that the performance targets can be achieved.  It is an integral part of the process and is a requirement for all of these standards.

    It’s best if we’re appointed during the early design stages, as this enables us to make useful PHPP evaluations and design inputs and can help avoid additional costs.  We can, however, fit into a project at any stage.  The fee guide below is in the instance that we’re fully embedded in your consulting team.  We can of course provide a smaller nugget of consultancy, for which you might like to read more here.


    Following an initial conversation or meeting and once we’re appointed, the following information would be useful to get us started.  Of course, how much of this information you have depends at what stage of your project you are at:


    *  Your design brief

    *  Site address and photographs

    *  Existing and proposed plans, elevations, sections

    *  Details

    *  Building envelope assemblies – floors, walls, roofs, windows, doors


    To give you an indication of our fees and the process, the following Steps are based on a typical 2 storey, 3 bedroom new build house, of simple form.  This example is for us to carry out the PHPP modelling and support your team to work towards achieving certification for your chosen standard.  It’s most likely that we would need to work with your team through all 5 Steps, but this does depend on your specific circumstances.

    If you have a low energy project that you might like assistance with, please do get in touch for an initial conversation.

    STEP 1

    Preliminary PHPP modelling

    Preliminary PHPP report

    1no. review meetings


    RIBA Stage 2 concept design

    STEP 2

    Step 1 plus:

    Full PHPP modelling

    Full PHPP report

    Envelope specification

    1no. review meetings


    RIBA Stage 3 spatial design – pre-planning application

    STEP 3

    Step 2 plus:

    Envelope detailing comments and assistance

    Thermal bridge assessment (no calculations)

    2no. review meetings


    RIBA Stage 4 technical design – pre-building regulations application

    STEP 4

    Step 3 plus:

    Final PHPP design review

    Pre-construction drawing review

    1no. review meeting


    RIBA Stage 4 technical design – pre-building regulations application

    STEP 5

    Step 4 plus:

    Liaise with Passivhaus certifier throughout all stages

    Collate construction evidence

    Final PHPP based on final construction

    £450 / site visit (requirement for depends on project team; number and frequency depends on construction method)

    £9,375 + site visits

    RIBA Stage 5 construction