Building Physics & Sustainability Consultant in Colchester

Buildings are expected to do more than ever before. They must perform efficiently, minimise environmental impact, comply with evolving regulations, and provide healthy, comfortable spaces for the people who use them. Building Physics plays a critical role in achieving these objectives.

This is an exciting opportunity for a Building Physics & Sustainability Consultant to join a growing and technically focused consultancy environment. The role offers the chance to work on a diverse portfolio of projects, supporting clients through all stages of the design and construction process while contributing to the delivery of high-performance, sustainable buildings.

You will focus on technical delivery across energy modelling, overheating assessments, sustainability compliance, and environmental performance analysis, while working closely with architects, engineers, and other specialist consultants as part of a multidisciplinary team. This role is well suited to an individual who enjoys combining technical expertise with practical problem-solving and is looking to further develop their career within a collaborative and supportive environment.

As a Building Physics & Sustainability Consultant, you will:

• Undertake SAP and SBEM calculations to support regulatory compliance and sustainable building design.
• Carry out Dynamic Simulation Modelling (DSM) using industry-standard software to evaluate building energy performance.
• Conduct overheating risk assessments in accordance with CIBSE TM59 and related guidance.
• Prepare Daylight and Sunlight Assessments to support planning applications and design development.
• Collaborate closely with architects, MEP engineers, structural engineers, and project teams to optimise building performance.
• Provide technical advice and sustainability guidance during project meetings, design reviews, and client discussions.
• Support planning applications, regulatory submissions, and compliance strategies.
• Contribute to the ongoing development and enhancement of building physics and sustainability services.
• Prepare technical reports, calculations, and supporting documentation to a high professional standard.
• Maintain current knowledge of UK Building Regulations, sustainability frameworks, and industry best practice, including Part L, Part O, NABERS, and BREEAM requirements.

• Degree or equivalent qualification in Sustainable Design, Environmental Engineering, Building Services Engineering, Building Physics, or a related discipline.
• Approximately three years or more of experience within a Building Physics or Sustainability Consultancy environment.
• Proficiency in IESVE software for building performance simulation and energy modelling.
• Experience carrying out SAP assessments using Elmhurst software.
• Strong understanding of UK Building Regulations, energy compliance requirements, and sustainability standards.
• Experience preparing technical reports and communicating complex information clearly.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication abilities.

• Experience developing and maintaining client relationships within a consultancy environment.
• Knowledge of UK planning processes and construction project delivery.
• Experience managing projects or taking responsibility for technical workstreams.
• Involvement in BREEAM assessments, NABERS ratings, or wider sustainability certification schemes.
• Familiarity with embodied carbon assessments and whole-life carbon methodologies.
• Working towards or holding a relevant professional accreditation.

• Competitive salary.
• Exposure to a broad range of projects across multiple sectors and building types.
• Opportunity to work within a collaborative multidisciplinary environment.
• Ongoing professional development and support for career progression.
• The chance to contribute to innovative and sustainable building design solutions.
• A culture that values technical excellence, knowledge sharing, and continuous learning.

This role offers the opportunity to work on meaningful projects that contribute to the performance, sustainability, and long-term resilience of the built environment. You will be part of a team that values technical expertise, encourages professional growth, and supports the delivery of high-quality, evidence-based design solutions.

If you are passionate about sustainable building design and want to help shape the future performance of the built environment, we would welcome the opportunity to hear from you.