Temporary Works
Design across the UK
You already know what a design category is — you sat the course. This is the other half of it: Target Zero’s engineering division, designing and independently checking temporary works to BS 5975:2024 for contractors across the UK.
BS 5975:2024 · CATEGORY 1–3 DESIGN & INDEPENDENT CHECKING · NATIONWIDE
What the design office takes on
Twelve disciplines, one team. The interfaces between them are somebody’s problem before they become yours.
Design categories, and who checks what
The bit of BS 5975:2024 that decides your programme as much as your fee. Tell us what you are building and we will tell you which category is yours — before you commit to anything.
| Category | What it covers | Who checks it |
|---|---|---|
| Category 0 | Standard solutions used within their published limits — no calculation required. | Checked by the designer. |
| Category 1 | Simple designs to established methods, low complexity and consequence. | Checked by another member of the design team. |
| Category 2 | Conventional designs of moderate complexity, or standard solutions used outside their published limits. | Checked by an engineer not involved in the design. |
| Category 3 | Complex or innovative designs, unusual loading, or high consequence of failure. | Checked by an independent organisation. |
Need the works managed, not just designed?
We supply appointed Temporary Works Coordinators who run the register, the permits and the hold points on site — with the design office behind them. If your appointed TWC has just left, or you have never had one, that is a call we take often.
Temporary works design that holds up on site
A decade of teaching the people who build from these drawings turns out to be decent training for drawing them.
✓Chartered engineers
Designs signed by a chartered engineer, not a technician.
✓Fast turnaround
Most schemes inside a week; checks in two to five days.
✓Named engineer
One engineer owns your job from brief to sign-off.
✓BS 5975:2024 throughout
Category 1, 2 and 3 designs with the right level of check.
✓Independent checking
We check other designers’ work, and arrange checks of ours.
✓Nationwide
Site visits and surveys anywhere in the UK.
Sectors we work in
The engineering does not change from one sector to the next. What changes is who has to be satisfied, and how long that takes.
Commercial
Offices, retail and mixed-use — usually tight sites, deep basements and a facade the planners will not let you knock down.
Residential
From single-dwelling basement digs and loft conversions to volumetric and large-panel residential blocks.
Infrastructure
Bridges, highways and structures — heavy plant, live traffic and possession windows that do not move. Tunnelling and shafts included.
Rail
Trackside and station works, designed around possessions, isolation and Network Rail’s assurance process.
Heritage
Listed and historic structures where the fabric is the point, movement limits are tight and reversibility matters.
Civils
Highways, drainage, utilities and general groundworks — deep excavations, shafts and chambers in the public highway, next to services nobody has an accurate record of.
Got a temporary works problem to solve?
Send the brief — or what you have of one — and get a fixed-fee quotation, usually within one working day.
or call 0333 4440018 · design@targetzerogroup.co.uk