Part of Zenon Group

Structural & Civil Engineers · Ipswich & Cambridge

Engineered Above Ground. And Below It.

We design the frame you can see, and the foundations, drainage, roads and levels you can’t. One coordinated team of structural and civil engineers means fewer consultants to manage, fewer clashes on site and earlier answers on what your site can take.

  • Chartered EngineersCEng MIStructE · MICE
  • IStructE CommendedEast Anglia, 2017 and 2023
  • Since 2011Ipswich Head Office
Cutaway Drawing of a Building on Its Site A two-storey steel frame stands on a plot of ground drawn as an isometric block. Above ground: the frame, floors, bracing and a lifted roof. Around it: a road, car park, forecourt, utilities and a SuDS pond. Cut into the ground below: piled foundations, a ground beam, a drainage run falling to an attenuation tank and flow control, the road build-up, a borehole and the groundwater level. FALL 1:100 ATTENUATION GROUNDWATER BH01 GL ±0.00
Drawing: Above and BelowScale: NTSRev: A

Clients and Project Teams We Have Worked With

  • Cambridge City Council
  • University of Suffolk
  • Essex & Herts Air Ambulance
  • East Suffolk Council
  • Essex County Council
  • Orbit Homes
  • Lidl
  • UPS
  • Barnes Construction
  • Hill Group
  • SEH French
  • TJ Evers

What We Design

One Team, From the Roof to the Drains

Most projects need a structural engineer and a civil engineer. Ours work as one team, so the foundations are designed with the drainage in mind, the site levels suit the structure, and you get one coordinated set of drawings.

The structure you see: frames, floors and roofs, designed to respect the architecture and drawn so it can be built.

  • Superstructure Design

    Frames, floors and roofs in steel, timber, masonry and concrete, plus specialist systems such as structural glass and SIPS panels.

  • Concept Consultation

    Bring us in before the design is fixed and we can streamline the structure, test feasibility for conversion or adaptation, and make real savings.

  • Drafting and Detailing

    A full package of calculations, CAD drawings and details for construction, coordinated with the rest of the design and suitable for Building Regulations.

  • Site Inspections and Surveys

    Most projects start with a site visit. We also survey existing buildings to assess cracking or suspected structural failure.

  • Temporary Works

    Props, excavation support and stability during construction, thought through early rather than left until the last minute on site.

Not sure which services you need? Send us what you have and we will tell you.

Case Study · North Weald Airfield

An Air Ambulance Base, Engineered From the Helipad Down

Engineers are often teased that you could land a helicopter on what they design. For Essex & Herts Air Ambulance, that was the brief. We were the structural and civil engineers for its new airbase from inception to completion: a two-storey hangar, offices and visitor centre on an exposed airfield.

The Essex & Herts Air Ambulance helicopter on the helipad in front of the new hangar at North Weald
Essex & Herts Air Ambulance Airbase, North Weald
  1. 01 Helipad and Drainage

    Minimal falls and trace heating keep the landing area clear of frost and snow. Foul and surface water are both attenuated on site.

  2. 02 Column-Free Hangar

    Cellular beams and a 15 m lattice truss keep the hangar floor clear for aircraft, with curved principal beams forming the curved section of the roof.

  3. 03 Wind and Downdraft

    We assessed wind loading for the building’s shape, its exposed airfield location and the downdraft from helicopters landing beside it.

Inside the hangar: white cellular beams with circular openings and a long lattice truss spanning the doors
Cellular Beams and the 15 m Lattice Truss

“Knowing it was all for such a vital community service made it incredibly fulfilling.”

Mark Hayward Director, on his favourite project
Client
Essex & Herts Air Ambulance Trust
Architect
Hurley Porte & Duell
Contractor
Barnes Construction
Our Role
Structural and Civil Engineering

Selected Projects

From an Air Ambulance Hangar to a Medieval Barn

Schools, homes, workplaces and public buildings across East Anglia and beyond, each with the structure above ground and the engineering below it designed to work together.

  • The Martello Cafe on Felixstowe seafront, a glazed pavilion under a folded zigzag roof
    • 7 m Glazing
    • Award Winner

    Education and Public

    Martello Cafe, Felixstowe

    A landmark for the South Seafront regeneration. Moment frames carry 7 m of full-height glazing with no bracing in the view, on a slab designed for uplift if the tide floods the site.

    East Suffolk Council · Plaice · Barnes Construction

  • The two-storey library at night, its yellow external steel frame lit against a blue sky
    • Exposed Steel Frame
    • RIBA Highly Commended

    Education and Public

    Newmarket Academy Library

    The structure is the architecture: an exposed external steel frame with decorative bracing and sway frames, and thermal breaks so the steel never cold-bridges.

    Newmarket Academy · Wincer Kievenaar · SEH French

  • Aerial view of the new brick apartment blocks at Aylesborough Close among streets of houses
    • 70 Passivhaus Homes
    • Structures and Drainage

    Homes and Housing

    Aylesborough Close, Cambridge

    70 low-carbon council homes to Passivhaus standards. One block is piled where the ground was poor, the rest sit on traditional foundations, and a cellular tank attenuates the surface water.

    Cambridge City Council · Feilden+Mawson · Hill

  • The timber-shingled SEND unit with its wide timber deck for outdoor teaching
    • RIBA Suffolk Award
    • Timber and Steel

    Education and Public

    The Nest, St Edmunds Primary School

    A SEND unit in timber frame and exposed steel, piled to protect tree roots, with cantilevered decks that keep load off a historic wall.

    Diocese of East Anglia · Hoopers · TJ Evers

  • Site workers installing precast panels between steel king posts at the foot of a cutting
    • 85 m King Post Wall
    • Piling Avoided

    Homes and Housing

    Flordon Road, Creeting St Mary

    52 homes beside the A14 on poor ground. Vibration ground improvement allowed shallow foundations instead of an expensive piled solution, and an 85 m king post wall holds the slope.

    Terrasite · Wincer Kievenaar · Redbourne Homes

  • The new Lidl store in Ipswich with its glazed corner under a cantilevered canopy
    • Structures and Civils
    • Value Engineered

    Commercial and Industrial

    Lidl, Ipswich

    A long-span frame with a cantilevered corner canopy, a retaining wall redesigned from sheet piling to king posts, and drainage with attenuation and a deep pumping chamber.

    Ipswich Borough Council for Lidl · Whittam Cox · Brooks and Wood

  • The new brick and glass kitchen extension lit at dusk, opening onto a stone terrace
    • Glulam Frame
    • Listed Building

    Heritage and Conversions

    Listed Building Extension, Hadleigh

    A glulam kitchen extension to a 15th to 17th century timber-framed house, made off site for precision, with cantilevering beams over a frameless corner window.

    Private Client · TAS Architects · RC Mumford

  • The restored black weatherboarded barn, now a family home, on a wide lawnThe barn interior before work began, with leaning, broken timbersBefore
    • Emergency Stabilisation
    • Green Oak Frame

    Heritage and Conversions

    Great Brockholds Barn, Radwinter

    A 450 m² medieval barn on the verge of collapse. We designed emergency stabilisation, then a two-storey green oak frame to carry the old roof and a new first floor.

    Private Client · Acorus · Charles Clarke and Son

  • A brick-walled ramp leading down to the tunnel entrance of an underground car park beside a country house
    • Basement and Tunnel
    • Contiguous Piling

    Homes and Housing

    Private Leisure Complex, Essex

    Most of it is underground: a tunnel-access car park, a bowling alley and a pool with an underwater viewing panel, built inside contiguous piling around the existing house.

    Private Client · ABS Essex

  • The three-storey office front of the new Sealeys warehouse in grey cladding
    • 30 m Portal Frames
    • Heavy Racking Loads

    Commercial and Industrial

    Sealeys, Bury St Edmunds

    A racking warehouse with portal frames spanning over 30 m, three storeys of offices and a refurbished marketing building, on a site with changing levels.

    Sealeys · Wincer Kievenaar · Barnes Construction

  • The converted Romney hut with its arched timber end wall and full-height glazing
    • Arches Reused
    • Self-Build

    Heritage and Conversions

    Romney Hut, Wakes Colne

    An agricultural building converted into a home: its original steel arches restored and reused, the existing substructure retained, and a glazed steel entrance to bring in light.

    Private Client · Self-Build

  • The curved timber-clad design studio pod cantilevering over the showroom entrance
    • Floating Cantilever
    • Curved Glulam

    Commercial and Industrial

    Orwells Design Studio

    A first floor that seems to float: a steel frame with large cantilevers, balanced on an inclined post with fixed bases, under a roof of tight-radius curved glulam beams.

    Orwells Furniture · KLH Architects

See Every Project

How We Work

We Design Your Structure, Not Just Engineer It

Superstructures was founded in 2011 by a designer who became a chartered structural engineer, and it still shows. Four habits shape every project, from a kitchen extension to a 52-home development.

  1. Design-Led

    We respect the architecture. Structure is expressed where it should be seen and hidden where it shouldn’t, with drawings and details that make the design intent clear to everyone who builds it.

  2. Practical on Site

    Our director, Mark Hayward, started out building roads on site, so our details are built to be built. If an issue comes up during construction, we aim to be on site within 48 hours.

  3. Efficient by Default

    “You could land a helicopter on that” is something engineers hear about steel for a single-storey extension. We size every member to work hard, which saves material, money and carbon.

  4. Coordinated

    Structures and civils in one team, working openly with architects, contractors and services engineers by phone, email, video or on site, from the first sketch to completion.

A coloured 3D structural analysis model of a steel-framed school building on pad foundations
3D Analysis Model, Beaumont School Science Building
A typical section drawing through a green oak frame inside a converted barn, with annotated timber sizes
Typical Section, Great Brockholds Barn

“In a relatively short time, the firm has been able to develop its business in many markets and have an excellent client retention record.”

Judges Suffolk Business Awards 2018, Small Business Finalist

Lower Cost, Lower Carbon

The Earlier You Call, the More We Can Save

Every structural decision gets harder to change as the design develops. Choose your RIBA stage to see what is still on the table, and which of our three lower-carbon strategies you can still use.

Where Is Your Project Now?
Influence Over Cost and Carbon4 out of 5

Materials Are Still Open

We compare frame and foundation options, prepare the flood risk assessment and drainage strategy a planning application needs, and can still change materials, such as timber in place of steel.

  • Flood Risk Assessment
  • SuDS Strategy
  • Carbon Strategy 2: Material Changes
Start at Stage 2

Measured, Not Guessed

Our sustainability team went back to a 67 m² cart lodge designed in steel and concrete in 2021. Timber studs, a glulam ridge beam and concrete with 50% GGBS took the structure’s embodied carbon from 8.68 to 5.83 tonnes CO2e: a third less, on one small building.

Carbon factors from the IStructE Structural Carbon Tool. Every lower-carbon suggestion on a concept we issue is marked with a green leaf, and the saving is shown on your final drawings.

A contemporary brick and timber family home lit up at dusk, with full-height glazing under a vaulted gable
Mirage, a New Family Home in Suffolk

Homeowners and Self-Builders

Planning an Extension, Conversion or New Home?

You don’t need to be a developer to work with us. We engineer kitchen extensions, barn conversions, listed buildings, basements and one-off homes, and we explain each step in plain English.

  1. Site Visit

    Most projects start with a look at the site or the existing structure.

  2. Design and Calculations

    We design the structure and foundations and prove them by calculation.

  3. Drawings You Can Build From

    CAD drawings and details for your builder, suitable for Building Regulations.

  4. Support on Site

    We stay on hand while it is built, and visit if something unexpected turns up.

Ask About Your Home Project

The Team

Eighteen People, Two Offices, One Team

Chartered and incorporated engineers, civil engineers, apprentices and the people who keep it all running, in Ipswich and Cambridge, with every senior engineer listed below.

Chartered Engineers
5
Incorporated Engineers
3
Apprentices in Training
4
Offices in East Anglia
2

Leadership and Senior Engineers

  • Mark Hayward

    Director

    BEng (Hons) CEng MIStructE MICE

    NHBC Approved Timber Frame Certifier

  • James Potter

    Founder

    BSc CEng MIStructE MICE

    Founded Superstructures in 2011

  • Craig Carr

    Associate

    BEng (Hons) CEng MIStructE

    IStructE Commendation, 2017

  • Simon Laird

    Senior Structural Engineer

    BSc (Hons) CEng MIStructE

    Chair, IStructE East Anglian Regional Group

  • Simon Howes

    Senior Structural Engineer

    MEng CEng MIStructE

    IStructE Commendation, 2023

  • Darren Noller

    Senior Structural Engineer

    IEng AMIStructE

    Over 20 Years in Structural Engineering

  • George Westgarth

    Principal Civil Engineer

    Drainage Strategy and Earthworks

  • Jessica Beardsworth

    Marketing and Business Development

    Client Relationships

The Wider Team

  • Luke Lockyer

    Civil Engineer

    BSc IEng MICE

  • Lee Allender

    Structural Engineer

    BSc IEng MICE

  • Chris Sheehan

    Structural Engineer

    BEng

  • David Williams

    Graduate Structural Engineer

    BSc

  • Charlie Dando

    Senior Apprentice

    Leads the Sustainability Team

  • Patrick Jones

    Apprentice

  • Charlie Booth

    Apprentice

  • William Cooke

    Apprentice

  • Christine Block

    Administrator

  • Rozanne Patrick

    Accounts Administrator

Recognition

  • 2023IStructE East Anglia Commendation for Structural ExcellenceUniversity of Suffolk Health and Wellbeing Building, Lead Designer Simon Howes
  • 2023RIBA Suffolk Design AwardThe Nest, St Edmunds Primary School, Bury St Edmunds
  • 2023RIBA Suffolk Craftsmanship AwardsCopper Beech, Hollesley, and Woodfield, Sproughton
  • 2022CIAT Award for Excellence in Architectural TechnologyMartello Cafe, Felixstowe, Designed by Plaice
  • 2020RIBA Design Awards, Highly CommendedNewmarket Academy Library
  • 2018Suffolk Business Awards, Small Business FinalistThe Final Four From a Field of 40
  • 2018One to Watch, Best Employers Eastern RegionSuperstructures
  • 2017IStructE East Anglia CommendationA Private House in Suffolk, Project Engineer Craig Carr

Our Offices

Ipswich Roots. Group Strength.

In 2026 Superstructures became part of Zenon Group, the international engineering and construction group. We are still headquartered in Ipswich, our Cambridge team is on Regent Street, and your contracts and points of contact stay the same.

What is new is the reach: Zenon’s MEP, modular and sustainability specialists across the UK, Canada, the USA and Europe, for larger and multidisciplinary projects.

About Zenon Group

Careers and Apprenticeships

Grow Your Career With Us

We took on our first apprentice in 2019, and our degree apprenticeship programme now lets young engineers earn while they study. Our first apprentice reached Incorporated Engineer status five years after leaving sixth form, a route that usually takes far longer.

“If we want great engineers tomorrow, we have to invest in them today.”

James Potter Founder

From the Team

Latest News

Questions

Frequently Asked Questions

Can’t see your question? Call Ipswich on 01473 217959 or Cambridge on 01223 653016.

What Does a Structural Engineer Do?

We design the parts of a building that hold it up: the frame, floors, roof structure and foundations. We prove them by calculation and issue drawings and details your builder can work from, suitable for Building Regulations.

Do You Provide Civil Engineering Too?

Yes. Our in-house civils team designs drainage and SuDS, highways and access roads, earthworks and ground modelling, external works, utility infrastructure and flood risk assessments, all coordinated with the structure.

When Should We Appoint You?

As early as you can. Before the design is fixed we can streamline the structure, test whether a site works and offer the widest choice of lower-carbon options, which is where the biggest savings are.

Do You Take On Small Projects?

Yes. We work on everything from single extensions and listed buildings to 70-home developments, schools and commercial buildings, and we bring the same thorough approach to each.

Where Do You Work?

Mostly across East Anglia, from our offices in Ipswich and Cambridge, and further afield when clients need us, with projects in St Albans, Oxford, London and the Midlands.

Can You Inspect Cracks or Damage in an Existing Building?

Yes. We survey existing buildings to assess crack damage or suspected structural failure, and we have carried out emergency stability surveys after a fire and on a medieval barn close to collapse.

Do You Design Temporary Works?

Yes. Temporary works are often overlooked or left too late. We think about how a structure will be built, used and eventually demolished, and design the temporary works to suit.

Can You Help Us Cut Embodied Carbon?

Yes. We offer three strategies depending on your RIBA stage, from optimising every element to designing the structure around low-carbon materials from day one, and we show the saving on your drawings.

What Do You Need to Give Us a Fee Proposal?

Drawings or sketches if you have them, the site location, what you are planning to build and when you hope to start. Send what you have through the form and we will ask for anything else.

Start a Project

Tell Us What You’re Building

A few details help us match you with the right engineer and prepare a fee proposal. Prefer to talk it through? Call us.

  1. We Review Your Project and your drawings, if you have them.
  2. You Are Matched with the engineer best suited to it.
  3. You Receive a Fee Proposal tailored to what you need.

Step 1 of 3 Your Project
I Am
What Do You Need?
Step 2 of 3 Stage and Site

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Step 3 of 3 Your Details

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