Design4Structures

What Design4Structures does

Design4Structures is a privately held UK-headquartered structural engineering consultancy that operates as a fully integrated team across four disciplines: civil engineering, structural engineering, construction engineering, and construction modelling and detailing. Founded in 1992 as TDS Midlands in Ironbridge, the firm re-branded in 2023 and now delivers from offices in London, Telford, Trikala (Greece), and Milan region (Italy), with active project delivery extending into Hong Kong and the Middle East. Its client base spans Tier 1 main contractors (Wates, Willmott Dixon, Skanska, JRL), developers (Landsec, Halcyon), architects (Foster + Partners, Fletcher Priest, Assael), government (Swansea Council, Department of Education) and heavy industrial clients (Mitsubishi Heavy Industries, Heidelberg Materials, Worley) on schemes ranging from the £250M Lucent W1 development at Piccadilly Circus to the Padeswood carbon capture facility.

The firm's core technical platform is BIM-led, anchored on Tekla Structures and Revit with parametric design via Rhino/Grasshopper and structural analysis through IDEA StatiCa, SCIA and Robot; client collaboration runs through Trimble Connect. D4S positions itself as a buildable-design specialist, integrating Stage 4 detailing and fabrication information into the design phase to reduce procurement risk, accelerate programmes (cited ~12-month reduction on the Hong Kong Terminal 2 expansion) and enable offsite construction (cited 75% of construction in a controlled factory environment on Lucent W1). It is the first structural engineering practice Verified by Cast and is formally recognised as an NHBC Light Steel Framing certifier, with proprietary parametric components and a custom Tekla development team supporting client-specific firm folders and tools.

Commercially, D4S is a project-based professional services consultancy paid via fixed-fee and competitive-tender engagements, operating both as principal and sub-consulting engineer. Go-to-market is consultative and relationship-driven, sourced through direct appointments from main contractors, developers, architects and public bodies, reinforced by industry award recognition (Offsite Awards, Tekla BIM Awards, UK Green Business Awards 2024), content marketing via project case studies, LinkedIn presence, and event participation. Headcount sits in the 51-100 range with a stated 60-person team as of 2023 including civil and structural engineers, construction modellers (over 30 Tekla/Revit technicians) and detailers. The firm took a £400,000 grant from the Midlands Engine Investment Fund II in December 2025 to scale capacity for larger projects.

Name

Design4Structures

Legal name

Design4Structures

Website

https://design4structures.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

Design4Structures is a UK-headquartered structural engineering consultancy delivering integrated civil, structural, construction engineering and BIM/modelling services to main contractors, developers, architects and government on building and infrastructure projects across the UK, Europe, Hong Kong and the Middle East.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

akta.pro secondary industry

Load-Bearing Wall Removal & Structural Beam Installation (HSAPAFAB)

Keywords

• Structural engineering services
• Civil engineering consultancy
• Offsite construction design
• BIM construction modelling
• Light steel framing engineering

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Engineering Consultancy Services: D4S generates revenue through providing civil engineering, structural engineering, and construction engineering services across residential, commercial, industrial, education, healthcare, transport, and hospitality sectors. Services span from RIBA Stage 2 through Stage 5 (technical design, manufacture, and construction support). Revenue is project-based, typically earned through fixed-fee consultancy engagements with contractors, developers, and government bodies.

Go-to-market motion3 records

Distribution channels5 records

Marketing channels5 records

Core offering

Design4Structures (D4S) is an integrated structural and civil engineering consultancy delivering civil, structural, construction engineering, and construction modelling services from feasibility through to construction on site. The firm operates across residential, commercial, transport, industrial, education, healthcare and hospitality sectors, with particular expertise in offsite and Modern Methods of Construction (MMC), BIM-led delivery using Tekla Structures and Revit, and connection design for complex steel, concrete, timber, masonry, light gauge steel and aluminium structures. It also acts as an NHBC LSF certifier and the first structural engineering practice verified by Cast.

Product overview

Design4Structures is a structural engineering consultancy offering integrated civil, structural, and construction engineering services. The core offering combines Structural Engineering Services, Civil Engineering Services, Construction Engineering Services, and Construction Modelling & Detailing as interconnected capabilities. A key differentiator is the Offsite Design and Delivery service that unifies structural engineering with digital modelling. The consultancy operates across traditional and modern construction methods (concrete, steel, timber, masonry, LGS, aluminium), supported by advanced BIM tools including Tekla and Revit. Additional specialized services include Retrofit and Refurbishment, Temporary Works Design, Tekla Software Development, and NHBC LSF Certification. Projects span commercial, residential, industrial, transport, education, healthcare, and leisure sectors globally.

Differentiator

Problem solved

Functional benefit

Products and services

• Structural Engineering Services End-to-end structural engineering services from feasibility through detailed design and construction, covering new-build, retrofit and refurbishment projects in concrete, steel, timber, masonry, light gauge steel and aluminium for residential, commercial, hospitality, education and infrastructure clients.
• Civil Engineering Services Holistic civil engineering service covering road design, ground modelling, earthworks, sustainable drainage systems (SuDS), flood risk assessments and hydraulic modelling, from early engagement and planning through post-planning detailed design and construction assistance.
• Construction Engineering Services Integrated connection design service across construction methods and materials, including structural steel connection design, architectural metalwork, modular frame solutions for MEP equipment and finite element analysis using IDEA StatiCa, SCIA and Robot, delivered through the supply chain.
• Construction Modelling & Detailing Construction modelling, BIM and detailing solutions for substructure, superstructure and architectural needs, delivered by a team of over 30 Tekla and Revit technicians and software developers to produce fully coordinated design services and comprehensive construction packages.
• Offsite Design and Delivery Strategic design and delivery partner for offsite construction, combining structural engineering and digital modelling into an integrated service supporting point-loaded and line-loaded modules, loadbearing SFS and SFS infill from feasibility through fabrication and installation; first structural engineering practice verified by Cast.
• Retrofit and Refurbishment Specialist structural upgrade, building re-use and performance enhancement service prioritising intelligent reuse of existing structures to reduce cost and environmental impact, with research-led approaches to heritage and existing-building constraints.
• Temporary Works Design Comprehensive design and detailing service for temporary works elements including crane base design, temporary load transfer systems, facade retention frames and temporary steel frame connection design.
• Tekla Software Development Services In-house Tekla Structures development service that integrates Tekla into client businesses by developing custom firm folders, drawing templates, report files, intelligent parametric components and tools tailored to business needs.
• NHBC Light Steel Framing Certification Independent NHBC Light Steel Framing certification and technical assurance service for offsite and MMC schemes, providing design responsibility for LSF elements, wider scheme coordination and warranty/regulatory body support.

Quantifiable outcome

• Reduced construction programme by approximately 12 months on Hong Kong Airport Terminal 2 expansion through integrated BIM approach
• +3 more outcomes

Named customers17 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core, major, strategic and standard.

• Mitsubishi Heavy IndustriescoreStrategic or Co-development PartnerD4S has been engaged by Mitsubishi Heavy Industries (MHI) to design steel structures for the Absorber, Quencher and Gas Wash Tower as part of the Padeswood carbon capture facility. Working as part of a multidisciplinary team led by MHI and Worley as EPCM contract partners.
• WorleycoreStrategic or Co-development PartnerD4S is working alongside Worley as EPCM contract partners with Mitsubishi Heavy Industries on the Padeswood carbon capture project. Worley provides engineering, procurement, and construction management services.
• Heidelberg MaterialscoreStrategic or Co-development PartnerD4S is supporting Heidelberg Materials' Padeswood cement plant carbon capture project, enabling production of evoZero cement at commercial scale, capturing ~800,000 tonnes CO₂ annually. Part of the wider HyNet North-West programme supporting UK net-zero ambitions.
• Kingspan SBSmajorChannel Partner/ Reseller/ DistributorD4S worked closely with Kingspan SBS for the Hub by Premier Inn 180-bedroom hotel project in Clerkenwell. Kingspan SBS is the LGSF manufacturer, with D4S providing complete engineering solution for technical design and bespoke connection designs.
• Willmott DixonmajorChannel Partner/ Reseller/ DistributorD4S is listed as Willmott Dixon's only approved LGSF engineer in their Yellow Book of suppliers and specifiers. Engaged for independent design checks and on-site verification on projects including Staffordshire University Student Village.
• Cast ConsultancystrategicTechnology or IntegrationD4S became the first structural engineering practice to be Verified by Cast, reflecting commitment to evidence-based decision-making and raising standards in offsite delivery.
• NHBCstrategicTechnology or IntegrationD4S is formally recognized as an NHBC Light Steel Framing certifier, providing independent certification and technical assurance for offsite and MMC projects.
• ConstructionlinestandardTechnology or IntegrationD4S is a Constructionline Gold member (upgraded in 2024), recognized as aligning with government and industry standards. The database is accessed by over 2,000 organizations including central government, local authorities and main contractors.
• Resilient GroupsmajorChannel Partner/ Reseller/ DistributorD4S is Resilient Groups' first choice of steel framing systems design company. Fast and accurate designs have won many projects with repeat customers.
• Premier ModularmajorChannel Partner/ Reseller/ DistributorD4S worked with Premier Modular as main contractor for Printworks Campus educational redevelopment, delivering modular design for new educational building on Leeds City College campus.

Scale indicators12 records

Recent moves9 records

Expansion highlights7 records

Direct peers

• Price & Myers: Long-established London structural engineering consultancy serving commercial, residential, education and heritage projects. Comparable in service offering (structural engineering and BIM-led delivery) and overlapping client base with D4S in UK commercial and residential segments.
• AKT II: London-based structural and civil engineering practice of comparable size and integrated delivery ethos. Closely comparable on iconic London commercial and residential projects, BIM-led workflow and emphasis on complex geometry — and is explicitly cited as a Tier 1 source from which D4S recruits talent.
• Heyne Tillett Steel: London structural and civil engineering consultancy of similar scale focused on commercial, residential and adaptive reuse projects. Comparable in service mix (structural, civil, retrofit) and project typology, and competes with D4S for similar London-based developer and contractor clients.
• Expedition Engineering: Independent UK structural and civil engineering consultancy with comparable integrated design ethos and involvement in complex, large-scale and international projects. Similar positioning as a specialist, design-led practice competing for marquee work outside the global Tier 1s.

Broad incumbents

• Waterman Group: UK-headquartered multidisciplinary engineering consultancy with structural, civil and infrastructure capabilities. Comparable service mix and UK focus, with greater scale and a broader portfolio across buildings, transport and environmental engineering.
• Arup: Global design, engineering and consulting firm with one of the world's largest structural engineering practices. Directly comparable on complex building typologies (airports, commercial towers, retrofit) and is a benchmark incumbent competitor for flagship engineering mandates.
• WSP: Global professional services consultancy with a large structural and buildings engineering practice. Overlaps with D4S across commercial, transport, energy and industrial decarbonisation projects, with materially greater scale and cross-disciplinary integration.
• Buro Happold: Global engineering consultancy with a strong structural and sustainability practice serving buildings, infrastructure and industrial clients. Overlaps with D4S in commercial, transport, education and energy transition work, but operates at substantially greater scale and breadth.
• AtkinsRéalis: Global engineering services and project management firm with extensive structural and infrastructure capabilities. Cited as a Tier 1 source from which D4S recruits and competes with D4S for large UK and international construction engineering mandates.
• Mott MacDonald: Global engineering, management and development consultancy with structural, civil and infrastructure capabilities. Comparable on industrial decarbonisation (e.g. Padeswood-style programmes) and large UK buildings work, operating as a global incumbent versus D4S's specialist positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/design4structures
• Xx.com/D4structures
• Facebookfacebook.com/design4structures

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Design4Structures