Knowledge hub13 questions
Structure, building control and safety, answered plainly.
Structural engineering, building control and site safety, covered end to end.
Structure, building control and safetyStraight answers
What people ask us about structure, building control and safety.
Does NU provide in-house building control approval?
No. We coordinate with external building control providers on every project.
Approval and inspections happen through the appropriate building control route. Our coordination role does not make us the approving body.
Next We confirm the appointed provider and inspection responsibilities upfront.
Do internal alterations need building regulations approval?
Often, yes. Structural changes can need building regulations approval.
So can some service, drainage or other alterations, even without planning permission.
Next We check the scope with building control before work starts.
Who is responsible for building regulations compliance?
Designers, contractors and clients each carry defined responsibilities.
We appoint competent people and agree who coordinates compliance. Inspections never replace those duties.
Next We record the appointments and evidence needed at completion.
Are CDM and Building Regulations principal designer roles the same?
No. They sit under different regimes with different functions.
One organisation can hold both roles, but only when properly appointed for each. We never assume one appointment covers the other.
Next We identify both roles explicitly at the start of your project.
What health and safety duties apply to a homeowner?
CDM duties apply to domestic projects too.
Your duties as client normally pass to us as contractor, under HSE arrangements. We explain the appointments and what information we need from you.
Next We confirm who manages pre-construction and site safety.
Can I remove a load-bearing wall or chimney breast?
Our engineer assesses what the wall supports and how loads transfer.
We design the temporary works needed and check consents and neighbour matters first.
Next We give you a coordinated structural design and safe sequence.
Do I need structural opening-up investigations?
Sometimes. Hidden construction can change our design assumptions.
We carry out targeted investigations of bearings, foundations or existing alterations first. That informs the final engineering solution.
Next We agree what is opened up, recorded and made safe.
Why are temporary works important?
A building can need support during alteration, even with a simple final design.
We design and manage the temporary condition as carefully as the permanent work.
Next We confirm who designs, checks and coordinates the temporary works.
Should asbestos be checked before strip-out?
Yes, where the work could disturb asbestos containing materials.
We arrange the right assessment and survey before any disturbance. A visual visit alone is never enough where an intrusive survey is needed.
Next We define the survey scope around the proposed works with our surveyor.
Does work in a tall apartment building follow a different approval route?
Yes, for some work in higher risk buildings under the Building Safety Regulator.
We assess your building and the proposed work against the current rules first.
Next We confirm the applicable approval route before we set the programme.
What certificates and inspections should I expect?
It depends on the scope of your project.
We agree an inspection and evidence schedule for the works and installations. We hold responsibility for obtaining and keeping the records.
Next We make certification part of the handover plan from the start.
Can an open-plan layout affect fire safety?
Yes. Removing enclosure around a stair or changing bedrooms can affect escape.
We coordinate the fix with our designers and building control early.
Next We test the plan rather than add safety measures at the end.
Could the Building Safety Levy affect my works?
The levy rules separate liable development from exemptions, and timing matters.
We never assume it applies to every private renovation or extension.
Next We confirm the current treatment of your specific works with our advisers.
Next step
Ready to talk about structure, building control and safety?
Read more about how NU works. Or send us your project.