Building regulations drawings in Islington

Flats, shared stairs and party structure

Only about 16.3 per cent of Islington households live in a house or bungalow, and just 26.7 per cent own the home outright or with a mortgage. Many of our clients are therefore upper-floor owners, freeholders of converted buildings or landlords. That changes the technical emphasis. Part B asks how a fire in the flat below reaches the common stair, Part E asks how footsteps and speech cross the floor, and an internal alteration may involve a lease that needs the freeholder's consent.

We draw the fire-resisting construction, door ratings and smoke detection route in plain symbols and a short schedule, and we mark each sound-insulation floor build-up with its layers. If you are splitting a house into flats, see flat conversion drawings in Islington for the planning side as well.

For a small kitchen or bathroom move, the drainage plan is the item that most often causes delay, because a stack in an old building may not sit where a new appliance wants it. We show falls, access and ventilation of every soil pipe.

What the clock allows

Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing. Notices follow the same pattern for every borough: Notify commencement within 5 days after work is regarded as commenced, and Notify completion within 5 days of completing the work. Because a Georgian house may have a surprise behind each wall, we recommend full plans, so that opening-up findings can be absorbed through a revised sheet and not an argument on site.

How Islington decides, and what it charges

Islington decided 337 householder applications in its latest recorded year, granting 92.6 per cent, with 98.8 per cent decided in time. A high grant rate does not mean a light touch: officers read the rear elevation and the roof closely, and our technical set has to match the drawing that was approved.

The borough's London Borough of Islington Community Infrastructure Levy (CIL) Charging Schedule charges £300/m² (Zone A); £250/m² (Zone B) — residential dwellings, Use Classes C3 and C4 for new residential floor area, plus the Mayor's £96.97 per square metre in band 1. An average terraced home sells for about £1,151,398, so a technical error on a loft or rear extension is expensive to unwind.

Our fee starts at £845 with VAT included. A second chartered technologist reviews each sheet, and any revision requested by the examiner is free.

Linked services and nearby boroughs

If permission is still to be sought, start with planning drawings in Islington. When the builder wants every junction in detail, the next step is construction drawings in Islington. The same technical service is described for Camden, Hackney and Haringey, and our overview of architectural drawings in Islington lists everything else we draw here.

Loft and rear additions on a terrace

A rear addition or a loft on an Islington terrace is usually a modest floor area built into a tight plot. The technical set therefore concentrates on the small things that an examiner checks on cramped sites: where the new drain meets the shared run, how the flat roof edge is finished against a neighbour's wall, and how the new stair is lit and ventilated when there is no outside wall to borrow.

We draw the roof as a layered section with the insulation, vapour control and ventilation shown at each layer, and we give the thermal values in a table the examiner can tick off. Most delays come from a missing detail, not a wrong design, and the checklist at the foot of each sheet is how we avoid them.