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    Home| Services| Net Zero and Decarbonisation | Detailed Design & Tender Specification and Project Management Support

    Detailed Design & Tender Specification and Project Management Support

    Technical Design and Procurement Support for Public Sector Decarbonisation

    Detailed Design & Tender Specification and Project Management Support
    Detailed Design Consultancy 1

    From Detailed Designs to Deliverable Projects

    Once your decarbonisation strategy is in place, the next step is turning plans into deliverable projects. Arthian’s detailed design and tender specification services help public sector organisations move confidently from concept to procurement, ensuring that retrofit and energy projects are technically sound, compliant, and ready for installation.

     
    We support clients across local government, education, healthcare, and cultural sectors with design and documentation align to the RIBA Stages 0- 7, Government funding requirements, and public procurement standards.

    What Is Detailed Design and Tender Specification?

    This service provides the technical detail and procurement documentation needed to progress decarbonisation projects from planning to delivery. It ensures that contractors understand the scope, performance expectations, and compliance requirements—reducing risk and improving project outcomes.
     
    Our service typically includes:


       

    • Technical drawings and system schematics
    • Performance specifications and design intent
    • Material and equipment schedules
    • Tender documentation and evaluation criteria
    • Clarification support during procurement

    Our Services

    Our designs are practical, fundable, and deliverable, ensuring your projects are ready for market and aligned with strategic goals.

    Integrated with Your Decarbonisation Strategy
    Heat Decarbonisation Plans (HDPs)
    PAS 2038 Retrofit Projects
    Energy efficiency upgrades
    Low-carbon technology installations
    Public Sector Decarbonisation Support

    Integrated with Your Decarbonisation Strategy

    Our detailed design and tender specification services are often delivered as part of a wider decarbonisation programme, including:
     

    • Heat Decarbonisation Plans (HDPs)
    • PAS 2038 retrofit projects
    • Energy efficiency upgrades
    • Low-carbon technology installations

    By integrating technical design with strategic planning, we help ensure that each intervention is aligned with your organisation’s sustainability goals and funding requirements.

    Public Sector Decarbonisation Support

    Heat Decarbonisation Plans (HDPs)

    Heat Decarbonisation Plan (HDPs) Consultants
     

    • Outline strategic steps for reducing carbon emissions from heating systems across buildings or estates
    • Support the transition to net zero by identifying practical, fundable interventions
    • Align with government funding criteria and public sector sustainability targets
    • Provide a roadmap for replacing fossil fuel-based heating with low-carbon alternatives
    • Help prioritise actions based on technical feasibility, cost-effectiveness, and long-term impact
    Public Sector Decarbonisation Support

    PAS 2038 Retrofit Projects

    PAS 2038 Retrofit Consultants
     

       

    • Follow the PAS 2038 standard for improving energy performance in non-domestic buildings
    • Apply a structured, whole-building approach to retrofit planning and delivery
    • Address building fabric, systems, controls, and operational behaviours
    • Support compliance with public sector sustainability and funding requirements
    • Provide a clear framework for assessing, designing, and implementing retrofit measures
    Public Sector Decarbonisation Support

    Energy efficiency upgrades

    Energy Efficiency Upgrade Specialists


       

    • Targeted improvements such as insulation, lighting, and controls
    • Reduce energy consumption and lower operational costs
    • Enhance overall building performance and occupant comfort
    • Support compliance with energy standards and funding criteria
    • Deliver quick wins as well as long-term savings across the estate
    Public Sector Decarbonisation Support

    Low-carbon technology installations

    Low-Carbon Technology Installations from trusted consultants
     

       

    • Integrate technologies such as heat pumps, solar panels, and battery storage
    • Enable cleaner, more efficient energy use across buildings and estates
    • Support long-term sustainability and net-zero carbon goals
    • Reduce reliance on fossil fuels and improve energy resilience
    • Align with funding criteria and public sector decarbonisation strategies
    Public Sector Decarbonisation Support

    Integrated with Your Decarbonisation Strategy

    Our detailed design and tender specification services are often delivered as part of a wider decarbonisation programme, including:
     

    • Heat Decarbonisation Plans (HDPs)
    • PAS 2038 retrofit projects
    • Energy efficiency upgrades
    • Low-carbon technology installations

    By integrating technical design with strategic planning, we help ensure that each intervention is aligned with your organisation’s sustainability goals and funding requirements.

    Public Sector Decarbonisation Support

    Heat Decarbonisation Plans (HDPs)

    Heat Decarbonisation Plan (HDPs) Consultants
     

    • Outline strategic steps for reducing carbon emissions from heating systems across buildings or estates
    • Support the transition to net zero by identifying practical, fundable interventions
    • Align with government funding criteria and public sector sustainability targets
    • Provide a roadmap for replacing fossil fuel-based heating with low-carbon alternatives
    • Help prioritise actions based on technical feasibility, cost-effectiveness, and long-term impact
    Public Sector Decarbonisation Support

    PAS 2038 Retrofit Projects

    PAS 2038 Retrofit Consultants
     

       

    • Follow the PAS 2038 standard for improving energy performance in non-domestic buildings
    • Apply a structured, whole-building approach to retrofit planning and delivery
    • Address building fabric, systems, controls, and operational behaviours
    • Support compliance with public sector sustainability and funding requirements
    • Provide a clear framework for assessing, designing, and implementing retrofit measures
    Public Sector Decarbonisation Support

    Energy efficiency upgrades

    Energy Efficiency Upgrade Specialists


       

    • Targeted improvements such as insulation, lighting, and controls
    • Reduce energy consumption and lower operational costs
    • Enhance overall building performance and occupant comfort
    • Support compliance with energy standards and funding criteria
    • Deliver quick wins as well as long-term savings across the estate
    Public Sector Decarbonisation Support

    Low-carbon technology installations

    Low-Carbon Technology Installations from trusted consultants
     

       

    • Integrate technologies such as heat pumps, solar panels, and battery storage
    • Enable cleaner, more efficient energy use across buildings and estates
    • Support long-term sustainability and net-zero carbon goals
    • Reduce reliance on fossil fuels and improve energy resilience
    • Align with funding criteria and public sector decarbonisation strategies
    Safety

    Why Choose Arthian's Energy team?

    Engineering services delivered by specialists:

    Integration

    Fully integrated with geotechnical, hydrological, and ecological disciplines.

    Our Experience

    National experience with regional insight and regulatory familiarity.

    Our Understanding

    Deep understanding of planning, infrastructure, and environmental interfaces.

    Results Driven

    Commitment to technical rigour, clear communication, and long-term outcomes.

    Frequently Asked Questions

    What is included in RIBA Stage 4 design?

    RIBA Stage 4+ includes technical design, performance specifications, and documentation suitable for tendering and contractor engagement. It bridges the gap between concept and delivery.

    Can you help us write the tender documents?

    Yes. We provide full tender documentation, including technical specifications, evaluation criteria, and clarification support during the procurement process.

    Do you work with internal procurement teams?

    Absolutely. We collaborate with your procurement and estates teams to ensure documentation meets internal standards and public sector procurement requirements.

    Is this service suitable for Government funded projects?

    Yes. Our designs and specifications are aligned with the schemes funding criteria, and we support you from grant applications through to project delivery and handover.

    Can you support multiple sites or frameworks?

    Yes. We regularly deliver design and specification services across multi-site programmes and public sector frameworks.

    Get in Touch

    We’d love to hear from you – whether you have a question, a project in mind, want to explore job opportunities, or just want to say hello.

    Contact Us
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    Arthian is a trusted partner, working collaboratively to deliver client-focused solutions.

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