Ealing, London
Velux loft conversion drawings in Ealing
Velux loft conversion drawings for an Ealing house cost £695 including VAT. The council cares about two things on a rooflight scheme: how the units sit against the windows below, and how many of them face the street. We draw both before anything else, then show the room, stair and floor behind them.
From £695 (VAT included)
- MCIAT chartered
- £2m PI insured
- LABC Partnered
- Fixed fees, VAT included
Request a fixed quote

How we work on velux loft conversion drawings
Nine steps from first call to approval.

Enquiry and constraints check
We check the property against conservation areas, listed status, Article 4 directions, tree preservation orders, flood zone and planning history. We choose the right route and send a fixed quote.
Measured survey
We survey the house on one datum: rooms, levels, boundaries, drains, trees and the neighbours' windows that the 45° and 25° tests depend on.
Design options
We model the house in Revit and show you options in 3D and plan, with the planning strategy and the precedents in your street.
Design frozen
You choose an option in writing. Nothing changes after this without your say.
Independent check
A second chartered technologist checks every sheet against the council's validation checklist and the policy. A senior review signs it off before anything is submitted.
Submission
We prepare the forms, certificates, fee and documents and submit through the Planning Portal.
Officer liaison
We answer the planning officer and make any amendments within five working days, at no charge until approval.
Building regulations
Technical drawings are coordinated with the structural engineer's calculations, the drainage and the planning conditions.
Approval and hand-over
Building control approval, then a next-steps pack covering the commencement notice, party wall timing and CIL.
Free redraws until approval. Every drawing set is checked independently, and the checker is never the person who drew it.
Request a fixed quote
What Ealing expects of rooflights
Ealing's guidance for roof work is the SPD 4 - Residential extensions. For rooflights it asks that each unit respects the size and position of the windows on the house, and it does not encourage several rooflights across the front slope. That is a design instruction, not a number, so an officer reads it against the elevation we submit.
In practice we line the rooflights up with the window openings below, keep the sizes related, and put the larger units on the rear slope where the street cannot see them. A terrace of near-identical Ealing roofs makes the front slope the sensitive one: a single unit that mirrors the landing window usually reads better than a row.
Where the work is permitted development the SPD is not the test, but we still draw to it. A scheme that would pass the council's own tone is far easier to defend if the Lawful Development Certificate is questioned, and it keeps the planning fallback open without a redraw.

Local figures for Ealing
| Measure | Value | Period | Source |
|---|---|---|---|
| Conservation areas | 31 named conservation areas published by the council | — | planning.data.gov.uk |
| Listed building entries | 309 list entries (Historic England, within the LPA boundary) | — | planning.data.gov.uk |
| Householder decisions | 946 decisions | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications granted | 87.2 % | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications decided in time | 95.3 % decided within 8 weeks or an agreed extended period | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Lawful development certificate applications (PS1) | 754 certificates | 2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026) | assets.publishing.service.gov.uk |
| Average price, terraced | 711,468 GBP | 2026-07 | publicdata.landregistry.gov.uk |
| GPDO Sch 2 Pt 1 Class C, para C.1(b) | Roof alterations (e.g. rooflights) may not protrude more than 0.15 m beyond the roof plane | — | legislation.gov.uk |
| Approved Document K 2013, para 1.13, Diagram 1.4 | Loft conversions where 2.0 m cannot be achieved: 1.9 m at the centre of the stair, 1.8 m at the side (half width) | — | gov.uk |
| Approved Document B Vol 1, 2019 ed. incl. 2026 amendments, para 2.10 | Escape window: unobstructed openable area at least 0.33 m², at least 450 mm high and 450 mm wide, bottom of opening no more than 1100 mm above floor | — | gov.uk |
A blank value means the figure has not been published, not that there are none. Check your own address with the council.
Householder applications by street in Ealing
| Street | Applications | Approved |
|---|---|---|
| Brentham Way | 42 | 90% |
| Corringway | 34 | 76% |
| Bilton Road | 28 | 89% |
| Norwood Road | 28 | 72% |
| Ashbourne Road | 27 | 83% |
| Fielding Road | 26 | 89% |
| Tentelow Lane | 25 | 71% |
| Brunswick Road | 24 | 100% |
| Ludlow Road | 24 | 91% |
| Meadvale Road | 23 | 95% |
| St Albans Avenue | 23 | 91% |
| Woodfield Road | 23 | 100% |
| Denison Road | 21 | 100% |
| Laughton Road | 21 | 83% |
| Rusthall Avenue | 21 | 85% |
Loft enlargement in section: the permitted development limits
A dormer on the rear slope, with the limits that decide whether it needs planning permission.
- A · Extra roof volume allowed
- 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume
- B · Set-back from the eaves
- Original eaves maintained; enlargement set at least 0.2 m from the eaves measured up the roof slope, so far as practicable (not required for hip-to-gable or roofs joining a rear/side extension)
- C · Height limit
- No part higher than the highest part of the existing roof
Conservation areas and listed houses in Ealing
Ealing publishes 31 conservation areas, and Historic England lists 309 entries inside the borough. A conservation area does not by itself remove the permitted development right for a flush rooflight, but it brings closer scrutiny of anything visible, and a listed house needs consent whatever the size of the window.
We check the address against both before we quote a route. If the house is clear, a Lawful Development Certificate is the clean way to fix the position in writing; the council has recorded 754 certificate applications in its latest statistics, so officers handle them routinely. If it is not clear, the same drawings support a householder application through planning drawings in Ealing.
How Ealing householder applications fared
In its latest published year Ealing decided 946 householder applications and granted 87.2 per cent. 95.3 per cent were decided within eight weeks or an agreed extension. A rooflight scheme is among the lighter items in that pile.
These figures describe the borough, not your roof. We use them to plan a realistic timetable and to explain the risk, never to predict an outcome.
Ealing is mostly houses and flats in roughly equal measure, with 50.3 per cent of households living in a house or bungalow, so a good share of applicants hold the rights that make a rooflight scheme straightforward. Most of the rest are in flats or maisonettes, where permitted development for the roof does not apply and a full application is the only way in. We say which group you are in on the first call, before any fee is paid.
Headroom, stairs and the escape route
On a rooflight scheme the question is how much floor has usable height. Where full stair headroom cannot be reached, the Approved Document allows a reduced standard: Loft conversions where 2.0 m cannot be achieved: 1.9 m at the centre of the stair, 1.8 m at the side (half width). We test the stair on the measured section so you can see what the first floor gives up.
A new storey also brings a fire rule: New storey above 4.5 m by loft conversion: protect the full escape route with fire-resisting doors (min E 20) and partitions (min REI 30). The rooflight doubles as the way out, with this requirement: Escape window: unobstructed openable area at least 0.33 m², at least 450 mm high and 450 mm wide, bottom of opening no more than 1100 mm above floor. Both go on the section and the specification.
If the numbers will not work under the slope, compare a dormer loft conversion in Ealing; for the wider picture of loft types, see loft conversion drawings in Ealing.
Velux loft conversion drawings in Ealing: price and sheets
The fixed fee is £695 with VAT, quoted before you commit. You receive existing and proposed plans, elevations and a roof section, with location and block plans. A second chartered technologist checks each sheet before it leaves us, and we redraw at no charge if the council asks for changes.
Owners elsewhere in west London can read the Velux loft conversion drawings guide or the borough overview at architectural drawings in Ealing.
If you are still weighing the cost of a loft against the value it adds, the borough average of 887,458 pounds for a semi-detached house is a useful marker for how much an extra bedroom is worth locally. It is an average across all sales, not a valuation of your house, so treat it as context only.
What you receive


Related pages
Other services in Ealing
Questions
Do Velux rooflights in Ealing need planning permission?
Often not: Roof alterations (e.g. rooflights) may not protrude more than 0.15 m beyond the roof plane. An Article 4 direction, a listing or a flat changes that, so we check the address first.
Can Ealing refuse several front rooflights?
The SPD 4 - Residential extensions does not encourage multiple rooflights on the front slope, so we keep the street side to one unit or none.
How much do the drawings cost?
From £695 including VAT, fixed in advance.
What if I want side-slope windows?
The rule is: Side roof-slope windows obscure-glazed and non-opening below 1.7 m.
Sources and dates
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- publicdata.landregistry.gov.uk, retrieved
- legislation.gov.uk, retrieved
- gov.uk, retrieved
- gov.uk, retrieved
- ealing.gov.uk, retrieved
- nomisweb.co.uk, retrieved
- Contains public sector information licensed under the Open Government Licence v3.0.
- Contains OS data © Crown copyright and database right 2026.
- Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
- Contains Historic England data © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026.

Tell us about your property.
We check the constraints, then send a fixed fee. Messages before 3pm get a reply the same working day.