Double storey extension drawings for Kentish Town houses

What you get for £995

The starting fee for double storey extension planning drawings is £995 with no VAT to add, taken from our published price list, and it buys the planning set. Structural calculations are not part of that fee: a named, insured engineer prepares them for £745, or your own engineer can, and either way we draw them onto our sheets. You see both figures before you commit, so the engineering never arrives later as a surprise.

A two-storey extension is a different job from a kitchen extension. The first floor adds bedroom or bathroom space above the new ground floor, so the drawings have to show how the two floors line up with the existing house: existing and proposed plans for both levels, elevations, a section through the new structure, and the roof where the new volume meets the old one.

The structural design matters more here than on a single-storey build, because the new ground-floor walls and any opening into the old house carry the floor and roof above. That is why we price it openly from the start, and why the all-inclusive package at £2,245 exists for owners who want planning, building regulations and structural calculations under one fixed fee.

What Camden's own figures show for householder applications

In the four most recent quarters of the Government's planning application statistics, Camden decided 394 householder applications, including prior approvals. Of those householder decisions, 89% were granted. Our analysis of the same table puts the share of householder decisions made within eight weeks at 61%.

These are borough-wide numbers across every kind of householder job, from a window change to a rear extension. They are not a forecast for your drawings and they do not say how a two-storey proposal will be judged. We quote them so you can see the size and pace of the system you would be entering.

Treat the eight-week figure as context for your build programme. Allow the application period before a builder can price against approved drawings, and do not book trades against a decision date.

Neighbours and daylight on a two-storey build

People searching for daylight objections in Kentish Town are usually thinking about a neighbour's kitchen window or garden. A second storey is the part of an extension that neighbours can see over a fence, so it is the part they are most likely to question.

We do not argue a case in the drawings, but we draw the facts a reader needs: the height of the new first floor, its distance from the boundary, and where the neighbouring windows and walls sit in relation to it. Measured and stated, those relationships can be answered with a dimension instead of an opinion.

If you have already spoken to the neighbours, tell us what they said. If a window of theirs faces your flank wall, we want to know before we set the first-floor wall position rather than after.

The council fee and how it sits beside ours

The planning authority charges its own application fee, and for a householder application to enlarge, improve or alter a single dwellinghouse the schedule that applies sets it at £548. That is a government-set charge and it is separate from our drawing fee.

Add the two when you budget: our £995 starting fee for the drawings, and the council's £548 to submit them. Your builder's price and any party wall costs are separate again.

Kitchen extension, loft or both

Owners in Kentish Town often ask whether a kitchen extension, a loft conversion or a two-storey extension is the better use of the money. A double storey extension is the one that adds floor area on two levels at once, which can suit a house that needs both a bigger kitchen and an extra bedroom.

A loft conversion adds space in the roof without changing the footprint, and a single-storey rear extension adds ground-floor space only. The right choice depends on your house and your budget, and the drawings for each are priced and scoped separately on our site. If you are weighing two options, send us the address and what you want to gain, and we will tell you which drawing set fits.