Reduce Carbon. Achieve Compliance. Optimise Building Performance.

Life Cycle Assessments (LCA) & Whole Life Carbon (WLC) Assessments

We deliver Life Cycle Assessment (LCA) and Whole Life Carbon (WLC) Assessments for developments across the UK, helping clients meet planning requirements, achieve BREEAM credits, and reduce embodied carbon from concept to completion.

What is Life Cycle Assessment (LCA)?

A Life Cycle Assessment (LCA) in construction measures the total environmental impact of a building across its entire lifespan - from raw material extraction to demolition.

This includes:

  • A1–A3: Material production (embodied carbon)

  • A4–A5: Transport and construction

  • B1–B7: Use phase (maintenance, energy, water)

  • C1–C4: End-of-life (demolition, disposal)

LCA provides a data-driven understanding of carbon hotspots, enabling better design decisions and lower environmental impact.

What is Whole Life Carbon (WLC)?

Whole Life Carbon (WLC) expands LCA to focus specifically on carbon emissions across all life cycle stages.

It is now a core requirement for planning in London and increasingly across the UK.

A foggy mountain landscape with tall pine trees towering over a rocky river flow.

When Do You Need an LCA?

You may require an LCA or WLC assessment for:

  • Planning applications (GLA / London Plan)

  • BREEAM certification (Mat 01 credits)

  • Net zero carbon strategies

  • Sustainability reporting and ESG targets

  • Material optimisation and cost reduction

Early-stage LCA delivers the greatest value by identifying high-impact carbon reductions before design is fixed.

Our LCA & WLC Services

  • RIBA 0-2: Early Design Stage

    Baseline carbon modelling

    Option comparison (materials, structure)

    Carbon reduction strategy

  • RIBA 2-3: Planning Stage

    Whole Life Carbon assessments (GLA compliant)

    Planning submission reports

    Embodied carbon benchmarking

  • RIBA 4-6: Technical Design & Delivery

    Detailed LCA modelling

    Supply chain data integration

    EPD-based material analysis

  • RIBA 7: Post-Completion

    As-built verification

    Carbon reporting and disclosure

Our Approach

We combine engineering expertise, carbon data, and digital tools to deliver accurate and actionable insights.

Our process:

  1. Data collection (drawings, specifications, quantities)

  2. LCA modelling using recognised standards (RICS, EN 15978)

  3. Identification of carbon hotspots

  4. Design optimisation and scenario testing

  5. Reporting for planning, certification, and stakeholders

A collection of colorful autumn leaves arranged on a white background.

Standards & Compliance

Our assessments align with:

EN 15978 & ISO 14040/44

BREEAM Mat 01 criteria

Selected LCA & WLC Experience

Why Choose Mainer?

  • Deep expertise in construction carbon and sustainability

  • Proven experience across planning, BREEAM, and net zero strategies

  • Integrated services including EPDs and carbon tools

  • Practical recommendations - not just reports

Frequently Asked Questions

  • Costs vary depending on project size and stage, but early-stage assessments are typically more cost-effective and deliver greater savings.

  • Yes - particularly in London, where Whole Life Carbon assessments are required under the London Plan.

  • LCA measures environmental impacts broadly, while WLC focuses specifically on carbon emissions across the life cycle.

  • Most assessments take between 2-6 weeks depending on project complexity and available data.

Related Services

For product-level environmental data, see our Environmental Product Declarations (EPDs) service.

To assess financial performance alongside carbon, explore our Life Cycle Costing (LCC) services.