Multidisciplinary
Ten in-house services working as one coordinated response to each project.
Engineering & Environmental Consultancy
Engineering & environmental consultancy
A multidisciplinary team of engineers and environmental consultants, working with developers, public bodies, contractors and landowners on projects across the UK.
01 — Who we are
Plan with purpose. Design with insight. Build with confidence.
Founded in 2016 in Norwich, Keystone is an award-winning engineering and environmental consultancy operating across the UK. We provide strategic guidance and specialist technical services to private individuals, land and asset owners, local authorities, contractors and developers.
Fifty people work across ten in-house services. More than 70% of work comes from repeat business — a reflection of a pragmatic, collaborative approach from the earliest concept through planning, detailed design, construction and handover.
2016
Established in Norwich
Accountable
A personable service with clear communication from brief through delivery.
Proven
UK project experience from national infrastructure to listed buildings and homes.
Forward thinking
Environmental and sustainability considerations built into project decisions.
02 — Services
Ten core services, delivered in-house
Engineering and environmental consultancy capable of working together as one to reduce cost and risk on a single project.
Civil Engineering
Feasibility, conceptual design, detailed design and value engineering for infrastructure that is intended to last.
- Feasibility and conceptual design
- Detailed design
- Infrastructure and drainage
Structures
Structural analysis and engineering design informed by construction knowledge, materials, risk, cost and practical delivery.
- Structural analysis
- Engineering design
- Material selection
Transport & Highways
Mobility strategies, highway design, transport modelling, assessments and travel planning that are accurate, practical and cost-effective.
- Mobility strategies
- Highway design
- Transport modelling and microsimulation
Water & Flood Risk
Specialist advice on managing water and mitigating flood risk from feasibility through design, construction and post-construction stages.
- Flood risk assessments
- Hydraulic modelling
- Drainage and SuDS strategies
03 — Portfolio
Selected projects
A selection of published UK assignments across energy, housing, infrastructure and the environment.
Industrial & Energy
Hornsea 3 Offshore Wind Farm and Infrastructure
DCO, planning, construction and technical compliance services for a major offshore wind development and a critical component of the UK’s 2030 energy strategy.
Residential
North of Lowestoft Garden Village
Air quality and odour consultancy for a proposed 1,300-home garden village in north Lowestoft.
Industrial & Energy
Malshanger Solar Farm
Transport consultancy for a 30MW solar farm in Hampshire, with planning approval secured in February 2026.
Residential
Kidbrooke Village – Phase Five
Geo-environmental and water & flood risk consultancy supporting the EIA process for a major London housing-led development.
Transport & Infrastructure
Clifton Railway Bridge Demolition and Replacement
Water and flood risk consultancy supporting demolition and replacement of Clifton railway bridge over the M6.
Industrial & Energy
PFE Express Headquarters
Multidisciplinary services for a landmark logistics headquarters in Witham, Essex, achieving BREEAM Very Good in 2025.
04 — Sectors
Where we apply our expertise
Proven experience across the natural and built environment, from strategic land to live operational sites.
05 — Why Keystone
Reasons clients return
More than 70% of work comes from repeat business. The reasons are practical, not promotional.
Multidisciplinary expertise
Integrated engineering and environmental services across project stages, coordinated in-house.
Practical solutions
Technical advice informed by planning, design and construction realities.
Collaborative delivery
Working closely with clients, design teams, contractors and stakeholders.
UK project experience
A published portfolio spanning infrastructure, housing, energy, education and the environment.
Sustainability
Environmental and sustainability considerations integrated into project decisions.
Accountability
Clear communication and professional responsibility throughout project delivery.
2016Founded in Norwich
50People
10In-house services
70%+Repeat business
06 — Clients
Organisations we have worked with
A selection of clients and delivery partners named on published project and sector pages.
- National Trust
- Cambridge Investment Partnership
- Ørsted
- Morgan Sindall Group
- The Wildlife Trusts
- M.J. Church
- Dawson WAM
- Breheny Civil Engineering
- Norfolk County Council
- East Lindsey District Council
- L&Q
- Hill Group UK
- Berkeley Group
- Brompton Bicycle
- Ben Burgess
- McDonald’s UK
- Sainsbury’s
- Tesco
Start a project
Plan with purpose. Design with insight. Build with confidence.
Share the project brief, programme and the services you need. The team will review the enquiry and respond with a clear next step.
Head office
Ground Floor, Alexander House
Acorn Business Park, Ling Road
Poole, Dorset, England, BH12 4NZ