Building regulations drawings in City of London

Building regulations drawings in City of London for flat refurbishments

In a flat, the Building Regulations questions are different from an extension. Is the wall you want to open load-bearing? What does the floor build-up do for sound between dwellings? Is the protected escape route to the stair still intact after your new layout? Does the extract from the new kitchen or bathroom reach outside?

Our drawings answer each on the sheet, with plans before and after, sections through the floor, and notes citing the Approved Document that applies. In a high-rise or older block the fire strategy of the whole building matters, and we draw so that your alterations do not weaken it.

Because the building is shared, the paperwork reaches beyond building control. The freeholder or managing agent will often require the sheets and the engineer's figures before a licence to alter is granted. See our structural calculations in City of London for the engineering side.

Competence, duties and the notice that lapses

Anyone carrying out design or building work must have the skills, knowledge, experience and behaviours (or organisational capability) to do it. In a flat refurbishment that includes whoever strips out and rebuilds, and the managing agent will often ask for evidence of it.

If you use a building notice instead of full plans, remember the lifespan: the notice ceases after 3 years if work has not started. On a shared building where access dates slip, we prefer full plans because the approved set stays fixed.

Where the scheme also needs engineering design, structural engineering in City of London can run alongside.

Why householder statistics barely apply here

The City decided 1 householder application in its latest published year. That is too small a sample to say anything useful, so we do not use it to forecast timing. For flats the better guide is the building's own history: previous alterations, the lease terms and any listing.

Services, ventilation and access in City flats

In many City flats the hardest part of the set is not the walls but the services. A new bathroom needs a drain with a fall to a shared stack, and ventilation that reaches outside through a duct that may already serve other flats. Part H governs the drain, Part F the ventilation, and both need the building's cooperation.

We draw the route from fitting to stack, with the invert level, the pipe size and the access points. Where a duct must pass through a fire-resisting floor, the sheets show how it is protected. Those details are what a managing agent asks to see before it will allow the work.

Access matters too. Part M is about level thresholds and usable doorways, and in a lifted block or a historic building the practical limits are different from those in a house. We draw what can reasonably be done and record where the building prevents more.

Finally, noise and working hours are often fixed by the lease or the building's rules. We include a short note for your contractor so that the programme is realistic from the start, and the sheets reach building control once, complete.

Price and next steps

Building regulations drawings start at £845 with VAT included, fixed before you commit. If an energy assessment is needed, see SAP calculations in City of London. For the wider picture, see architectural drawings in City of London, or compare the neighbours Islington and Westminster.