Barking and Dagenham, London
Velux loft conversion drawings in Barking and Dagenham
Velux loft conversion drawings for a Barking and Dagenham house start at £695 including VAT. A rooflight conversion leaves the roof shape alone, so the council's tough dormer tests mostly fall away. What decides the route is the address: the borough has 3 Article 4 directions and 4 conservation areas, and either can pull a simple rooflight job into a planning application.
From £695 (VAT included)
- MCIAT chartered
- £2m PI insured
- LABC Partnered
- Fixed fees, VAT included
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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.
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Velux loft conversion drawings in Barking and Dagenham: what the council's guidance covers
The borough's roof guidance sits in the Residential Extensions and Alterations SPD. Its tests are written around volume added to a roof: dormers belong at the rear and within the slope, front and side dormers are considered unacceptable in most cases, and hip-to-gable work is not acceptable in most circumstances. Our research found no rooflight-specific rule in it, which is the useful point for this page. A Velux scheme adds no bulk, so none of those volume tests is triggered.
That is why a Velux conversion is the lightest roof project the council sees, and why it often suits a family in a terrace who wants one more bedroom without arguing a dormer.
There is a second document for part of the borough. Streets on the Becontree Estate are covered by the Becontree Estate SPD and Design Code, which is worth reading before you choose where rooflights go. Rooflights on a front slope can matter to an estate design code in a way they would not on an ordinary suburban street, so we read it against your address before we draw.

Local figures for Barking and Dagenham
| Measure | Value | Period | Source |
|---|---|---|---|
| Article 4 directions | 3 Article 4 directions published by the council | — | planning.data.gov.uk |
| Article 4 direction areas | 3 Article 4 direction area polygons published by the council | — | planning.data.gov.uk |
| Conservation areas | 4 named conservation areas published by the council | — | planning.data.gov.uk |
| Listed building entries | 49 list entries (Historic England, within the LPA boundary) | — | planning.data.gov.uk |
| Householder decisions | 388 decisions | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications granted | 66.5 % | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Householder applications decided in time | 100 % decided within 8 weeks or an agreed extended period | 1 July 2025 - 30 June 2026 | assets.publishing.service.gov.uk |
| Households living in a house | 68.8 % of households living in a house or bungalow (detached, semi-detached or terraced) | Census 2021 | nomisweb.co.uk |
| Lawful development certificate applications (PS1) | 345 certificates | 2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026) | assets.publishing.service.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 |
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 Barking and Dagenham
| Street | Applications | Approved |
|---|---|---|
| Westrow Drive | 51 | 62% |
| Upney Lane | 35 | 79% |
| Beccles Drive | 34 | 67% |
| Lyndhurst Gardens | 28 | 62% |
| Blake Avenue | 22 | 70% |
| Western Avenue | 22 | 50% |
| Salisbury Avenue | 21 | 74% |
| Lichfield Road | 19 | 56% |
| Melford Avenue | 19 | 75% |
| Rugby Road | 19 | 58% |
| East Road | 18 | 61% |
| Fanshawe Crescent | 18 | 71% |
| Marston Avenue | 18 | 72% |
| Sandringham Road | 18 | 71% |
| Woodbridge Road | 18 | 69% |
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
Article 4 directions and conservation areas on the roof
An Article 4 direction can take away permitted development rights that a house would otherwise have, including some roof alterations. Barking and Dagenham publishes 3, covering 3 mapped areas, and its 4 conservation areas bring tighter control of their own. The listing has weight too: Historic England records 49 entries in the borough.
Where none of that applies, the national rule governs the units: Roof alterations (e.g. rooflights) may not protrude more than 0.15 m beyond the roof plane. We draw the rooflights on the roof section with the projection dimensioned, because the officer, and later the building control surveyor, will look for it.
Anything inside a direction or conservation area is checked first, before a single measurement goes onto a plan.
Lawful development certificate or full application
Where a house keeps its permitted development rights, a Velux conversion can usually go through a certificate that confirms the work is lawful without a planning application. Barking and Dagenham dealt with 345 certificate applications of all kinds in the latest year, so the route is well used here. We prepare the drawings and the covering evidence for a lawful development certificate where the address allows it.
Where it does not, a householder application follows. In its latest year the council decided 388 of them, granted 66.5 per cent and met its deadline in 100 per cent of cases. A grant rate below one hundred per cent is a reason for careful drawings, not a forecast: those figures include every project type, from extensions to porches.
Houses, headroom and who uses a Velux loft here
This is a borough of houses, with 68.8 per cent of households living in one, and the average terraced home sold for £409,511 in the latest figures. For many families the roof is the most affordable place to find another room, which is why loft work is common.
Headroom is the make-or-break number. A rooflight conversion only works if there is enough height at the ridge to make a room and a stair. We take a measured roof section first and, where the stair lands awkwardly, we test it against the guidance on stair headroom before suggesting a layout.
Where a full two-metre clearance is out of reach, the building regulations give a relaxation for loft stairs: 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 draw the stair on the section with that clearance dimensioned, so there is no doubt on site about where the head of the stair must land.
Often the better plan is a rooflight at the rear and a modest one at the front, set where the stair meets the floor, with the bed under the low side and storage tucked into the eaves. Every one of those choices is a few centimetres of height, which is why the survey comes before the layout and not after it.
On a plain pitched roof with the ridge running front to back, the slopes are long, the rooflights can be spaced evenly and the stair can run parallel to the party wall without crossing the best part of the room.
What the set contains and what it costs
A Barking and Dagenham Velux set shows the existing and proposed floor plans, a roof section with the stair and rooflight heights, elevations of each slope and the location and block plans. Velux loft conversion drawings start at £695 including VAT, fixed before you commit, and a second chartered technologist checks every sheet. If the council asks for changes we redraw at no charge until approval.
The same survey carries on into building regulations drawings in Barking and Dagenham, where the floor, stair, escape window and fire protection are specified.
Related services and nearby councils
If a dormer would give more room, see dormer loft conversion drawings in Barking and Dagenham or the wider loft conversion drawings page. The service guide is at Velux loft conversion drawings, and the local overview is architectural drawings in Barking and Dagenham. Over the boundary we also cover Redbridge, Havering and Newham.
What you receive


Related pages
Other services in Barking and Dagenham
Questions
Do I need planning permission for Velux windows in Barking and Dagenham?
Often not, but check the address first. The borough has 3 Article 4 directions and 4 conservation areas, and either can change the answer.
Does the Becontree Estate design code affect rooflights?
It can. The borough publishes the Becontree Estate SPD and Design Code, and we read it against your street before choosing rooflight positions.
How much do Velux loft conversion drawings cost in Barking and Dagenham?
From £695 including VAT, fixed before you commit.
How far can a rooflight stand above the roof?
The national rule is: Roof alterations (e.g. rooflights) may not protrude more than 0.15 m beyond the roof plane.
Sources and dates
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- planning.data.gov.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- nomisweb.co.uk, retrieved
- assets.publishing.service.gov.uk, retrieved
- legislation.gov.uk, retrieved
- lbbd.gov.uk, retrieved
- publicdata.landregistry.gov.uk, retrieved
- gov.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.

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