We are many things

That bit at the start of a job, when everyone’s still excited and wondering how we’re going to create whatever building it is we’re working on – that’s why we do what we do.

About Us
We are SPH Structures. We have drawn on extensive design and expertise within the London refurb and new build market to establish the firm. We are a young engineering firm, in personnel and history, but we aim to surround ourselves with the right people so that as a collective we can encourage, learn and build from each other to be the best engineers we can be! We are design engineers first and foremost (geeks a close second).

We love our projects, but its our interaction and relationship with people that makes everything worthwhile.

Our Process
We operate across stages 2-5 of the Royal Institute of British Architects (RIBA) plan of works which typically translates into planning / design and construction as shown below.

We Specialise In:

Airspace Developments



Timber Frame


Refurb and Listed Construction

Steel and Timber Connections

We Dabble In:


Temporary Works

Lightweight and Steel Frame



Composite Design


Where we areWe work at Ark Coworking. It’s a proper community, there’s a coworking bit next door with every business start-up you can imagine with people making that leap and doing it for themselves. We’re surrounded by what seems like mostly film producers or mens magazine people upstairs at the minute, a few charities, people writing their thesis and everyone in between. Needless to say we get our ears bent for the odd bit of advice here and there but it’s really nice being in an environment that isn’t just engineering and everyone is pushing and striving to make their own work come to life - that’s really cool.

Email Us
Call Us 0207 315 4147

Office Address237 Pentonville Road London N1 9NG

Registered AddressSuite 111, 48/48a Eaglewhard Road London N1 7ED

SPH Structures Ltd
237 Pentonville Rd
London N1 9NG

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Frank takes his role very seriously, he stubbornly refuses to walk most of the time on the off chance a new lead might be coming around the corner - but he excels at networking in social situations inside and outside of work, bringing any and everyone together at the time. His working methods may appear unorthodox to most people looking in - sleeping on shift for most of the day and then dramatically reducing office productivity when he is awake - but a genius is often misunderstood.


Amazing Engineer/CAD Technician

Sean first met Khadra during her year out in industry which formed part of her degree; MEng (Hons) Civil Engineering with Architecture. She’s since gone on and gained a First class in her degree, and could have gone anywhere, but chose us instead. We’ve watched with pride at how hard she’s worked to get here and will continue to support her going forward - she’s gonna be awesome. We’re big fans.


Awesome Engineer/CAD Technician

A super smart Italian structural engineer whose blank looks are proof that Sean’s accent is a little bit everywhere right now. Vale impressed us in our initial meeting when she still wasn’t confident with her English, we were rocking English, she was translating into Italian and somehow she was the only person in a room with other (more senior) Italian Structural Engineers who knew the correct term for a thermal break - clearly the smartest person in the room, so we hired her.

Sean Hanlon

Director, Founder & Engineer

A Brummie born and bred with various stints around the UK including the North-West and Wales but now based in London since 2012. Has been described as having an ‘infectious optimism’ by past colleagues - which we we’re taking as something good right? Sean just bloody loves a bit of Engineering, problem solving, the challenge and always having something new to learn and read about - its exciting! (maybe they were right?). He drinks tea, lots of tea as well.














our homework

You’ve got to keep learning and moving forward, extracts from our ‘homework’... 


Jun 2, 2020
Jun 2, 2020

We hosted an internal CPD on FE analysis. Switching over to a new programme is always a learning curve, so best to go through all the gremlins together from the off.

Overall Stability

Sep 7, 2020
Dec 17, 2020

As part of our continued development we've decided to review all IStructE stabulity documents between Sept and Christmas. Working our way through a chapter each week.

Two day training event on Temporary works at the IStructE

Industry Learning
Feb 13, 2019
Feb 14, 2019

Our favourite event to date by a long way, and that was predominantly because of Mr Ray Filip of rkfconsult.co.uk. A real thorough and thought out teaching programme which covered pretty much every aspect of temporary works. Ray then added additional calc work and examples from his experience – really practical and useful. Loved it.

Light Scenography in Architectural Dimensions with Hideki Yoshimoto

Industry Learning
Jan 29, 2019

Hosted by nkiliarchitecture.com. Amazing talk, blew our socks off. How Hideki gets from, say a gearbox for inspiration, to a high end fashion installation in Milan is mind boggling. He’s done some really cool installations, it was really interesting to hear his take on some of his work which can be seen on tangent.uk.com.

You, Me, CPD, Beer & Ping Pong

Industry Learning
Feb 28, 2019

Lets be honest. We were sold on the name. A proper decent CPD by the crownstonegroup.co.uk on the practicalities of keeping water out of a basement, in addition to some technical requirements in accordance with BS 8102. And obviously we were big fans of the post CPD beers on this one.

Solid Wood Solutions

Industry Learning
May 21, 2019

A day long seminar and lecture event on everything solid wood related (CLT, Glulam etc). Best fact of the day when talking about a nine (9) storey structure in Finland, apparently the total amount of wood needed to construct the building is regrown in just twenty (20) minutes across the whole of Finland’s Forests during the summer – love that!

Tall Timber Storeys from Scandinavia at the Building Centre

Industry Learning
May 2, 2019

A short evening event, so a lot to cram in for a couple of hours. There were three (3) main speakers, all delivering on various aspects of Tall Timber projects their working on. Some interesting stuff going on, specifically the Skelleftea Cultural Centre which is worth keeping an eye on – 20 storey timber frame (no RC core for stabilisation).

Demolition and Structural Refurbishment at the IStructE

Industry Learning
Mar 5, 2019

A day long event presented by Charles Treasure (wentworth-house.com) who has over 40 years experience in both temporary and permanent works, the management and coordination of the design process. Anyone with this much experience is always worth listening to, just to pick up on their experience and listen to past projects they’ve done.

Property Accelerator

Industry Learning

Presented by stradagroup.co.uk. Over the course of 7 months we dedicated a day per month to sit alongside established property developers seeking to learn more and understand more about every aspect of property development in a bid to better themselves and their businesses. So much learned on this course.

Fire Safety Design: We need to talk about Timber at the IStructE

Industry Learning
Jun 19, 2019

An evening lecture by Dr Angus Law who holds the Building Research Establishment Lectureship in Fire Safety Engineering and advised the UK Government Expert Panel on Fire Safety in the aftermath of the Grenfell Tower fire.

Retaining Walls to Eurocode 7

Industry Learning
Oct 10, 2019

A day long event at the IStructE looking at everything retaining wall related - good useful course, will definately be refering back to our homework on this one

Thesis Publication!

Industry Learning
Nov 11, 2019

We love this! So Vale took the decision to publish her thesis on the design of external facades in high rise buildings this week (back in Italy). She derived new equations for the behaviour and interface connections between new and existing structures. Yes Vale!!

Writing Skills for Engineers at the IStructE

Industry Learning
Nov 22, 2019

Writing Skills for Engineers with Penny Taylor. A great course! She was really clear, conice and engaging above all else. We learned a lot from this course and as a result will be ripping up our templates and starting again. Thanks Penny.

UK Construction Week at the NEC

Upcoming Events
Sep 10, 2019

Took the team up to have a look what was going on in the industry and try to put a 'few faces to names' so to speak of different products we use for our more junior members. Useful day.