Office Building for Legalease, Fleet St, London

Leaglease commissioned our team to add lift shafts, stairs and an extra floor to their building in Fleet Street, City of London, in a substantial structural steel project.

  • Client: Legalease
  • Structural detail by: Mark Ebbs & Mick Simpson
  • Job Duration: 2016-2017 (18 months)

Space to develop in London is rare, so it is increasingly common to extend buildings upwards rather than sideways. Our project in Fleet Street was, therefore, far from unique – apart from the location and logistics.

We worked directly for the building’s owner rather than a large construction company. When we won the contract to build a steel framed single story extension on the roof, we were also asked to work out how to get the steel work up there, and erect it, in order to successfully add another floor to the building.

Our solution was to site a mobile tower crane in Fleet Street over several weekends and carry out the works as quickly as possible. As you can imagine, closing such a busy London thoroughfare is not an easy process! We embarked on considerable traffic management, and arranged bus diversions. We contracted City Lifting who supplied the crane and arranged everything else with the council directly. The team completed the work over three weekends.

What do you think of the photos we took during the project? Not a bad view…

Note: you can enlarge the images by clicking on them.

view of London over Fleet St with added steel floor, by LSJ Engineering
extra floor added to Legalease, Fleet Street, London
view of crane in Fleet St, London, from ground level

Are you interested in commissioning a construction project from LSJ Engineering?

We are open for commercial structural steel work! If you liked the work we did for Legalease, get in touch here or email us on info@lsjeng.co.uk. Alternatively, phone us on 01702 290 585. You can find more of our structural steel work projects here. We look forward to hearing from you.

New Build for Capel Manor School, Enfield, London

T&B Contractors commissioned LSJ Engineering to construct a structural steel new build for Capel Manor School in Enfield, north London.

  • Client: T&B Contractors
  • Structural detail by: Mark Ebbs
  • Job Duration: 2016

This was a new build structure of around 40 tonnes. 40 tonnes is fairly lightweight for a building of this size, which is only a single story. That said, a double pitched roof made the structure complicated. It also curved on plan.

Our Tekla 3D modelling and drawing software allows our team to detail structures with great accuracy. We can order curved sections to be made exactly as required from CNC files. This makes fabrication quicker and ensures the final site erection goes very smoothly.

Accurate setting out and installation of the column holding down bolts is critical – especially with a structure this complex! Again, our drawing software ties this process into the design from the start, so we are able to issue very good setting out information to the groundworks contractor.

Here are some of the construction photos! Not a bad view… What do you think of it?

Note: you can click on the images to enlarge them.

structrual steel structure at Capel Manor School
structrual steel structure at Capel Manor School
structrual steel structure at Capel Manor School

Are you interested in commissioning a construction project from LSJ Engineering?

Do you like the look of the work we did at Capel Manor School? Our team is available for commercial steel work projects. To learn more, get in touch here or email us via info@lsjeng.co.uk. Alternatively, phone us on 01702 290 585. You can find more of our structural steel work projects here.

Vertical Extension and Cantilevered Staircase at Cowcross St, London

Stoneforce commissioned the LSJ Engineering team to build a vertical extension in Cowcross Street, London, in 2018. We fitted a cantilevered staircase on the same job.

  • Client: Stoneforce
  • Structural detail by: Mark Ebbs
  • Job Duration: September 2018-January 2020

This was another vertical extension, at Cowcross Street in Farringdon, central London.

We supplied and erected a two story extension, on top of a building already three stories high. The building needed its roof removed to complete the works, so the main contractor put a full scaffold lid on it. This made erecting our frame with a mobile crane very difficult! Thankfully, we were provided with a hoist to get all the steel sections to roof level. We erected the frame using Genie lifts and gantry frames for the heavier sections.

On the same contract, we supplied and fitted an unusual cantilevered staircase from the basement level to ground floor. The stair flight formed continuous 20mm steel plate treads and risers, with non-slip nosing strip slots milled into the treads. The whole stair cantilevered off a concrete wall. To hide the fixing points, a stud wall was built a few inches in front of it, and the treads and risers fully welded together. Because some welding and grinding were involved in the fitting process, the stair was painted on-site.

What do you think of the finished work?

Note: you can click on the images to enlarge them.

grey roof steel on Cowscross St
view of scaffold at vertical extension in Cowcross St London
completed staircase at Cowcross St London
steel staircase at Cowcross St London
steel staircase at Cowcross St, Faringdon, London
view of steel staircase at Cowcross St, Faringdon, London

Interested in commissioning steel work from LSJ Engineering?

We are open for commercial steel work! If you like the look of our work, we’d love to hear from you. Get in touch here or email info@lsjeng.co.uk. You can also phone us on 01702 290 585. Find write ups of our other staircase projects here, and our structural steel work projects (including more vertical extensions!) here. We look forward to hearing from you.