Interior Layout PlansFrom £445
How much do interior layout plans cost in London?
Interior layout plans for a London home cost our fixed £445, with the measured survey visit included and no VAT charged. They show your rooms to scale with furniture, doors, radiators and stairs in place, so you can see whether the kitchen island fits and where the bathroom can go before anyone moves a wall.
The short answer: one fixed fee, from survey to options
Our interior layout plans cost £445. That covers a measured survey of the rooms, doors, windows, stairs and fixed services, an accurate existing plan of each floor to scale, and two or three layout options with the furniture drawn at its real size. Door swings, clearances and circulation routes are marked.
Notes follow on which walls look structural or contain services, and what that might mean for cost. The result comes as PDF and CAD files you can pass to a builder, a kitchen designer or the next stage of drawings.
- Our layout drawings
- £245
- Our measured survey visit
- £200
- Total
- £445
What "fits" means: the space standard as a ruler
The government's nationally described space standard is written for new homes, but its numbers make a handy ruler for any layout. A single bedroom is one with a floor area of at least 7.5 square metres and at least 2.15 metres wide, and a double or twin has a floor area of at least 11.5 square metres. One double must be at least 2.75 metres wide and every other double at least 2.55 metres wide.
Headroom matters in a loft or basement: any area with a headroom of less than 1.5 metres is not counted in the gross internal area unless used solely for storage, and the standard asks for a minimum floor-to-ceiling height of 2.3 metres for at least 75% of the area. We draw to those numbers so you can see which room fails a test before you commit.
Which walls you can move
A wall that carries load cannot be taken out without a beam. Part A of the Building Regulations requires the building to be constructed so that the combined dead, imposed and wind loads are sustained and transmitted by it to the ground, so removing one means calculations; our post on structural calculations explains the cost.
From the survey we note which walls look structural, which sit over a stair or a flue and which contain pipes. It is a first view, not an engineer's report, but it turns "can we knock this through?" into a priced question rather than a hope.
When the plan leads to approvals
Government guidance on building regulations lists alteration projects that may need approval, including to install a bathroom that will involve plumbing, replace windows and doors, and install or replace a heating system. A layout that adds an en suite therefore leads to more than a drawing.
If the plan will change the outside, or the use of the house, planning permission may come into it; our building regulations post covers the next step. Our interior layout plans page shows the service.
Sources
Every figure in this article, where it comes from and a link to the original.
- 7.5 square metres and at least 2.15 metres wide: Nationally described space standard (March 2015), requirement (c): (source wording: "a single bedroom has a floor area of at least 7.5m2 and is at least 2.15m wide"). assets.publishing.service.gov.uk
- at least 11.5 square metres: Nationally described space standard, requirement (d): (source wording: "a double (or twin bedroom) has a floor area of at least 11.5m2"). assets.publishing.service.gov.uk
- 2.55 metres wide: Nationally described space standard, requirement (e): (source wording: "one double (or twin bedroom) is at least 2.75m wide and every other double (or twin) bedroom is at least 2.55m wide"). assets.publishing.service.gov.uk
- less than 1.5 metres: Nationally described space standard, requirement (f): (source wording: "any area with a headroom of less than 1.5m is not counted within the Gross Internal Area unless used solely for storage"). assets.publishing.service.gov.uk
- 2.3 metres for at least 75%: Nationally described space standard, requirement (i): (source wording: "the minimum floor to ceiling height is 2.3m for at least 75% of the Gross Internal Area"). assets.publishing.service.gov.uk
- the combined dead, imposed and wind loads are sustained and transmitted by it to the ground: Building Regulations 2010 Sch 1 Part A1: (source wording: "the combined dead, imposed and wind loads are sustained and transmitted by it to the ground"). www.legislation.gov.uk
- install a bathroom that will involve plumbing: GOV.UK Building regulations approval: alteration projects that may need approval include (source wording: "install a bathroom that will involve plumbing"). www.gov.uk
Questions people ask
Is this the same as planning drawings?
Do I pay VAT on your fee?
Can I use the survey for later drawings?
Do you choose the furniture?
Does it tell me which walls are structural?
Photographs: Brett Jordan (Unsplash License); Daniil Korbut (Unsplash License).
Interior Layout Plans: a fixed fee from £445
Read more on the interior layout plans service page, or send your address below and we reply within one working day.
Interior Layout Plans
from £445
£245 drawings + £200 survey (£445 total)
Every price is the full fixed fee you pay. No VAT is charged. Council application fees are paid to the council separately.
What you get
- A measured survey of the rooms, doors, windows, stairs and fixed services
- An accurate existing plan of each floor to scale
- Two or three layout options with furniture drawn at true size
- Door swings, clearances and circulation routes marked
- Notes on which walls look structural or contain services