Green materials radar Send a project

Pay less for a greener building.

Send us your bill of quantities, or a quote. We find certified greener options for each line and show which cost less once tax relief and grants are counted.

Send a project

Your bill of quantities

    The whole bill 10086

    Example figures. Index: your bill as specified = 100.

    Parkroyal on Pickering, Singapore · WOHA · Photo: Basile Morin (new tab), CC BY-SA 4.0 (new tab)

    See each line next to its greener options.

    1. 1The matchA certified product that meets the spec of the line it replaces.
    2. 2The cost over its lifePrice, running costs and replacements, less any tax relief or grant.
    3. 3The carbonEmbodied carbon from each product’s EPD, side by side.

    Tax relief and grants turn the greener option into the cheaper one.

    How the relief works

    The building costs less when its systems are priced together.

    Each line on its own

    100

    Systems priced together

    86

    Better insulation and shading cost 4 more, so the heating and cooling plant costs 10 less.

    Planting holds the rain, so water and drainage cost 4 less.

    Solar on the roof takes 3 off energy.

    Example figures. Index: each line bought on its own = 100.
    All alternatives

    Envelope

    • Roof insulationBiobased insulationInsulant with a verified EPD
    • GlazingTriple glazingSolar-control glazing
    • FacadeTimber claddingInsulated facade system
    • External wallsTimber-frame wall panelsBio-based wall insulation
    • DoorsInsulated timber doors
    • Flat roof finishGreen roofSolar roof

    Structure

    • ConcreteLow-carbon concreteLow-clinker cement
    • FrameTimber frameHybrid timber and steel
    • ReinforcementLower-carbon steel

    Heating, cooling and controls

    • Gas boilerHeat pumpHybrid heat pump
    • Chiller plantHigh-efficiency chiller
    • VentilationHeat-recovery ventilation
    • Building managementBuilding automation, class B or better

    Energy

    • Rooftop solarSolar PV with battery storage
    • Battery storageCertified battery system
    • EV chargingSmart charging with load management
    • LightingEnergy-labelled LED
    • LiftsRegenerative-drive lifts

    Water and waste

    • Rainwater tankLocally made tank
    • WastewaterGreywater recycling unit
    • PipeworkRecycled-content pipe systems
    • Sanitary fittingsWater-saving fittings
    • WasteOn-site composting and recycling

    Interiors and landscape

    • Internal wallsClay board partitionsTimber-frame partitions
    • CeilingsWood-wool acoustic panels
    • Floor finishesLow-emission finishes
    • PavingPermeable paving
    • PlantingNative planting

    Who it's for

    If you’re building

    • Companies that own and use their buildingsFreeA building that costs less to build and to run.
    • Architects, engineers, quantity surveyors and contractorsPriced, certified options while the spec can still change.

    If you provide the alternatives

    • Makers, installers, system integrators and consultantsFound by projects that are ready to buy.Tell us what you offer

    Send your project before anything is signed.

    1. Send your bill of quantities, specification or quote, as it stands.
    2. Get each line's greener options, priced after tax relief.
    3. Choose the ones you want; the provider quotes on your quantities.
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