A dynamic London based structural engineering & design practice focused on quality and structurally challenging projects, big and small. We are experienced chartered engineers & structural engineers, who add value to projects by designing well detailed and efficient structures.

Structural Engineers, London

Mike Davies & Andy Simpson


Sneinton Market works have commenced and SD Structures are excited to present the 3D frame design. Be sure to click the video in the link below!

Film frames


#structure #CivilEngineering #architecture #construction #SDStructures

7 months ago

9 months ago

Aynhoe Park House Featured in AJ

SD’s Structural design at the remarkable, Grade II Listed, Aynhoe House is set for construction. bit.ly/sdaynhoe Be sure to take a look at some great images of


9 months ago

Sneinton Market Nottingham Steel Progressing

The steel frame erection is well underway at our Nottingham Site. Piling operations for the 4 storey Residential/Commercial block have been completed and reinforcement cages are being installed. The development is part of a regeneration of the central city historic market to provide commercial space and residential units for local artists, artisans and designers.

Read More

Chartership Success at SD!

Congratulations to our Senior Engineer, Victoria Tinney who has been successful in passing her IStructE Chartership professional review and can now call herself a Chartered Structural Engineer. The drinks are on us! #mistructe  

Read More

Demolition Continues at Aspect

The Enabling works package is well underway at Aspect.  Existing foundations have been uncovered through localised tunnelling 3m below existing ground level.  Existing foundations over 1m in diameter have been assessed and back analysed to provide justification for the future development.  Material testing of the historic steelwork and bolts is underway in preparation for breaking…

Read More

Read More

Welcome Senior Engineer Romeo

SD Structures are pleased to welcome Romeo to the team taking a lead on our Major Projects.  Romeo joins the team with a breadth of experience working on high profile new build and full renovation for some of the City’s leading practices.

Read More

Welcome Kamil

SD Structures are pleased to welcome a new structural engineer, Kamil to the team.  Kamil brings a passion for Architecture and a keen eye for detailing to compliment the practice

Read More

SD Preferred Engineers for NHS Sussex Partnership

SD have been working closely with NHS Sussex Partnership Trust having become their preferred Structural Engineer. We are providing structural and civil services for extensive renovations and extensions at sites in Worthing, Crawley and Hove.  

Read More

Enjoyed working with weathering steel on another exciting project with @deDraftLondon #sdstructures #corten

1 year ago

London Borough Housing Scheme Get's Green Light

SD Structures have been working closely with Architects, PRP to bring this Central London housing scheme through planning for the London Borough of Tower Hamlets.  Following a 6 month design and consultation process, the team were pleased to hear that the scheme will be progressing through to construction.    

Read More

I have worked with SD Structures on a number of development projects whilst at Uplift. They have always been extremely proactive and responsive throughout the project. Our projects are often on complex sites but SD’s experience means we can always maximise the potential of each acquisition with intelligent, cost effective solutions. Since joining Engie (Keepmoat) I will be recommending SD for our developments.

Peter Keenan - Development Director - Uplift Property/Keepmoat

Soho House Hotel (Redchurch St.) Tops Out

Great to see our project for Soho House on Redchurch Street has just topped out. Two stories of basement were completed a couple of months ago and now the 5 storey steel frame and metal decking is in place. Looking forward to going for dinner when it opens late 2018!

Read More

SD ‘Signs GB Lions’ Sam Rogers. SD is proud to welcome a new talented Structural engineer to the practice. As a GB Lions AF team member, hopes rest with his ability to play cross code and help the SD Structures 5 A-Side Team after a rocky start to the season. #sdstructures

2 years ago

Cleared Site to Steel Frame in 6 Weeks at Howards Chase

What a difference 6 weeks makes. Foundations and steelwork have all been completed ahead of programme with no delays. A testament to detailed coordination with the whole design team in 3D and 2D alike. Shame the steel didn’t get installed in SD Purple though… Read more about the project here >> Howards Chase

Read More

Larch Portal Frame - From mock up to construction

Months in the design and mock-up along with architects Smith and Newton, these unique timber portal frames utilise bespoke hidden steel plate and dowel connections to express the natural beauty of the larch. Still in construction, a fully glazed roof structure and oversized larch doors will complete the envelope of the side and rear extension.

Read More

SD Pioneers 3D RC Detailing on Alexandra House

RC detailing hasn’t changed much for the last 60 years. 2D drawings are created to show every bar required on the project and a separate schedule is then manually created. This is a slow, tedious process and mistakes are often found onsite when the wrong bars turn up. SD Structures are pioneering 3D reinforcement detailing.…

Read More

Read More

Zero Alfred Road - Home Owners to Move In

One of SD Structures first projects is nearing completion. We walked past the Zero Alfred Road site yesterday and found the scaffolding is now down and lucky new home owners should be moving in in a few weeks.  A full plan basement was excavated in close proximty to three neighbours, including a multi storey car…

Read More

Read More

Design For New Music Recording Studio Complete

We are excited to have completed the design for a new music recording studio building in East London with PAM Studio Architects. Looking forward to seeing it start onsite later in the year. The SD band better get some practice in! To read more >> visit the project page

Read More

SD Structures @ Bold Tendencies, Peckham

SD Structures are proud to have collaborated with Artist João Vasco Paiva, and Architect Benni Allan from estudio on this installation at Bold Tendencies in Peckham.  Cob blocks were utilised with lime mortar to produce a maze which will degrade naturally with time. Project Page>

Read More

Having now worked on numerous projects together with SD, it is their ability to provide innovative and well-considered engineering solutions that set them apart. Importantly they approach every project as a collaboration with a desire to maintain the architectural aesthetic while providing responsive and cost-effective structural solutions.

Grant Straghan - Director - DeDraft
Project : Aynhoe Park Houses See All Testimonials

Andy, Mike, and the SD team are a trusted design partner of ours who have consistently helped inform & solve many complex engineering problems, providing a reassurance presence throughout the project stages.

Dale Newton - Director - Smith & Newton Architects
Project : Yoda House See All Testimonials

SD Structures are Moving (For The Views!)

Three years, three offices.  As the practice grows, so must the office!  We will be saying goodbye to our home on Fleet Street, and hello to our new office at Blackfriars above the riverside Mermaid Theatre. Hello River Views! The team can now be found at: SD Structures, Mermaid Theatre,Puddle Dock, London EC4V 3DB  

Read More

Underpinning in Central Hampstead

Underpinning is underway in central Hampstead following completion of the temporary shoring and installation of plunge columns to create clear access to the excavation. SD Structures have undertaken a full service on this project including temporary works, construction phasing, 3D reinforcement detailing, connection design, and traditional structural design. A key element to the design is…

Read More

Read More

The work that SD produced in the pre-construction and budget phase was invaluable. The detailed 3D modelling enabled us to look at how much of the building would be saved and the structural requirements in achieving the concept design. As a client we have been very demanding but SD have continued to support the scheme and deliver solutions to all our requests.


Jason Richardson - Private Client - Seabreeze Lodge
Project : Seabreeze Lodge See All Testimonials

SD structures are a pleasure to work with and make a great contribution to the design team. They make the process of coordinating the structural and architectural strategies very simple. Collaborating through Revit granted us invaluable foresight, while their keenness throughout the process to tailor the structural solution to the client’s priorities was of critical benefit in ensuring design quality.

Oliver Cooke - Director - Cooke Fawcett Architects
Project : Godwin Road See All Testimonials

We enjoyed working with Mike on the Tate St Ives Project because of his appreciation of good design and attention to detail. Since setting up SD Structures, we asked Mike and his team to help us with a residential warehouse conversion project. The structure was thoughtfully developed; utilising cantilevered steels, hangers and transfers structures, without comprise to the architecture.

Jamie Fobert - Director - Jamie Fobert Architects
Project : Laundry House See All Testimonials

SD Pioneering Augmented Reality

SD Structures are pioneering the use of augmented reality on its latest projects. We can take the 3D building model and project it onto a table so the design team can explore it from different angles and spot coordination issues. When onsite we can then project the model at 1:1 size and use it to…

Read More

Read More

SD 'signs' GB Lions Sam Rogers

SD Structures is proud to welcome Sam Rogers to the practice. Sam joins the practice following two years building his experience at civil engineering giants, Skanska. As a Great Britain Lions American Football team member, high hopes rest with his ability to play cross code and help the SD Structures 5 A-Side Team after a…

Read More

Read More

Ground Breaking in Basildon

Contractors have broken ground at our Basildon Site, Howards Chase. A new stylish two storey office complex will bring life to a site that had fallen into disrepair.

Read More

Basement Nearing Completion Under Listed Kensington House

The basement works at ‘Torpedo House’ is nearing completion after 8 months of careful digging below the listed terraced property in Kensington. The team have had to deal with huge logistical challenging including suspending the rear of the three storey house and a 300mm diameter Thames water sewer above the basement throughout the works!

Read More