Loft conversion drawings in Barking and Dagenham

What the national rules allow

Permitted development is the usual starting point, and volume is the first limit: 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume. The roof also must not rise above the existing ridge, as the rules put it: No part higher than the highest part of the existing roof. The front slope is protected: No enlargement beyond the plane of a roof slope that forms the principal elevation and fronts a highway.

The eaves keep their line: 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). And an outdoor platform is excluded: No verandah, balcony or raised platform. Together these limits push the design towards the rear slope, with the front roof left as it is.

Conservation areas and Article 4 directions

Barking and Dagenham has 4 conservation areas and publishes 3 Article 4 directions, mapped as 3 areas. Either can change the route, which makes the address check essential. Inside a conservation area the rule is: Class B roof enlargements are not permitted development on article 2(3) land.

Historic England lists 49 entries in the borough. A listed house needs its own consent for most roof alterations. If your house is outside all of these, a Lawful Development Certificate in Barking and Dagenham can confirm the loft in writing, and householder planning, drawn as in our planning drawings in Barking and Dagenham, covers the rest.

How the council has been deciding householder applications

In its latest published year Barking and Dagenham decided 388 householder applications and granted 66.5 per cent. It decided 100 per cent within eight weeks or an agreed extension. Those figures cover every kind of householder project. At that grant rate we draw with the guidance in front of us and check the certificate route first.

Stairs, fire safety and insulation

Whichever route you take, the building regulations apply. Where full stair headroom cannot be reached, the rule is: 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). A new storey above the stated height needs protection: 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).

New roof elements also carry insulation limits: New elements in existing dwellings, limiting U-values W/(m²·K): roof 0.15, wall 0.18, floor 0.18, windows 1.4 (or WER Band B), doors 1.4. Our building regulations drawings in Barking and Dagenham set all of this out for the builder and the inspector.

What the loft drawings include and cost

A loft set shows existing and proposed floor plans, the new stair, the roof in section and all elevations, plus the location and block plans. The price starts at £695 with VAT included, fixed before you commit. A second chartered technologist checks each sheet, and we redraw free of charge if the council asks for changes.

Other services and nearby councils

For a particular roof form, see dormer loft conversion drawings in Barking and Dagenham. Adding space at the back too? Rear extension drawings in Barking and Dagenham cover it. For the borough overview, see architectural drawings in Barking and Dagenham, and compare the neighbours Redbridge and Havering.