L-shaped dormer drawings in Haringey

Article 4 directions and conservation areas

Haringey publishes 25 Article 4 directions over 25 areas, and 33 conservation areas. Either can take away the permitted development right for a roof.

The national rule inside a conservation area is: Class B roof enlargements are not permitted development on article 2(3) land. Outside both, the limit is volume: 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume. We confirm which situation applies before drawing a line.

Housing stock and values

Haringey's terraces include the long Victorian runs of Tottenham, Wood Green and Crouch End, many with a rear outrigger. Gardens cover 26.6 per cent of the borough's land, and the average home costs 638,690 pounds.

Prices moved 1 per cent in the last twelve months, so building a second floor in the roof is a steady alternative to moving.

How Haringey decides

The council decided 689 householder applications in the latest year, granting 90.3 per cent and deciding 94.3 per cent in time.

It also logged 396 lawful development certificate applications in the latest national return. Historic England lists 289 entries, so check the list for your address.

Joining the roofs, stairs and neighbours

The junction rule that makes the L workable is: Eaves-retention and 0.2 m set-back do not apply where the enlargement joins the original roof to the roof of a rear or side extension. The height rule is: No part higher than the highest part of the existing roof.

Neighbours must receive notice: Party structure notice at least 2 months before work. The stair needs: 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 coordinate both with the engineer's steel layout.

Long terraces and repeated roof patterns

Haringey's Victorian streets repeat the same roof pattern for dozens of houses, so one altered roof stands out. Officers are alert to the effect of a run of similar dormers and may look for consistency. We photograph your row and check which houses have already built, so the drawing can show your L as part of an emerging pattern or as a restrained first.

If neighbours have built, matching their ridge-to-eaves proportions is usually the safest route.

Houses with small gardens and tall backs

Many Haringey terraces have short gardens and tall rear elevations, so the new roof is seen from neighbouring bedrooms close by. We draw the dormer cheeks without glazing and keep the main windows facing the garden, which limits overlooking and addresses a common objection before it is made.

Daylight, privacy and the neighbours

On tight terraces a dormer changes what neighbours see from their own bedrooms. We show the position of every nearby window on the roof elevation, so an officer can judge the outlook from each one.

We also prepare a short note to hand your neighbours with the party wall notice. A neighbour who has seen a plain drawing is less likely to object than one who first hears from the council.

Costs and next steps

Send us the address and a few photographs of the back of the house. We check the directions, the conservation area map and the planning history, and reply with the route, the likely volume and a fixed quote. The check is free, and you decide afterwards whether to go ahead.

Where the check shows a direction covering the roof, we also tell you how a planning application would be framed, and what drawings it needs, so the decision to proceed rests on the whole picture and not only the drawing fee.

Delivery and related pages

A second MCIAT chartered technologist checks every sheet, and we redraw at no charge until approval if the council asks for changes.

See dormer loft conversion drawings in Haringey, loft conversion drawings in Haringey, the Haringey architectural drawings hub, or next door L-shaped dormer drawings in Hackney and Enfield.