Side return extension drawings in Brent

What Brent's planning record says

Brent decided 879 householder applications in its latest year and granted 86.6 per cent, with 97.2 per cent decided in time. The borough holds 23 conservation areas, 39 Article 4 directions covering 162 areas, and 1,229 tree preservation orders.

Those numbers shape the work. A high Article 4 count means some Brent streets lose permitted development rights that people elsewhere take for granted, so we confirm your address before suggesting any route. The large number of tree preservation orders means a neighbour's tree beside the side return deserves a note on the plan, with its distance from the new wall.

Only 43.3 per cent of households live in a house or bungalow, and 38.4 per cent own their home, so the houses that do have a side return are valuable. A terraced house averages £700,019. Larger home extension prior approvals show 10 granted and 79 refused, a clear warning about taking that shortcut.

National limits and the building regulations side

The permitted development limit for side extensions: Side extension: single storey, max 4 m high, max half the width of the original house. Eaves near the boundary: Eaves no higher than 3 m where within 2 m of the curtilage boundary. Protected land is excluded, since No side extensions under PD on article 2(3) land (conservation areas etc.).

Brent's heavy refusal pattern on prior approvals is a useful signal for owners weighing the two routes. A householder application lets the council look at your lightwell, your roof and your neighbour's windows together, and a well-drawn set answers those points in advance. Because the rear of a Brent terrace is often overlooked from several windows, we include the neighbour's rear windows and any shared drain on the plan and a section that shows how the new roof sits below them.

Brent's own boundary eaves figure under the outrigger rule is lower than the national permitted development one, so we confirm early which test your scheme will be judged against. Our planning drawings in Brent cover that application.

For energy, Windows, roof windows, rooflights and doors in an extension should not exceed 25% of the extension floor area plus the area of openings removed or covered. New elements must meet: 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. A lightwell adds glass in the right place, but the glazing percentage still has to add up.

Cost, party walls and related drawings

The Brent side return set is £745 including VAT, fixed in advance. The council's householder fee of £548 is separate. The set includes plans, elevations, a section through the outrigger and a block plan, and every set is checked by someone other than the drawer before it reaches you.

Terraced houses share walls, so serve notices in good time: Line-of-junction (new wall) notice at least 1 month before work; and where a party structure is involved, Party structure notice at least 2 months before work.

Brent's borough CIL for new floor area is £357.14/m² (Residential, Use Classes C3 & C4; schedule base rate £200.00/m²). If you plan a bigger project, rear extension drawings in Brent cover the wider scheme, and the side return extension drawings in Barnet page shows how the neighbouring council measures the same extension.