Hip-to-gable loft conversion drawings in Southwark

Directions, designations and the Southwark map

Southwark has published 480 Article 4 directions, along with 53 conservation areas. Historic England records 919 listed entries in the borough. Any of these can take away the right to extend a roof without a planning application.

The council also holds 724 tree preservation zones, which rarely affect a roof directly but can affect scaffold, access and the garden around it. We check them all against your address and report what we find in a short written note before any design fee is agreed.

A borough of flats

Only 21.8 per cent of Southwark households live in a house, and 28.9 per cent own their home. Most residents live in flats or rent, and flats have no householder rights: a flat roof change needs a planning application and usually the freeholder's agreement.

The houses that can take a gable, in places such as Camberwell, Peckham, Nunhead or Dulwich, are usually a terrace with a hipped end or a semi, worth £1,229,706 on average for a semi and £838,160 for a terrace. Money spent on drawings is small beside the value of the house, and good ones help protect it.

How Southwark decides householder cases

Southwark decided 558 householder applications in the latest year, granted 94.8 per cent, and decided 95.3 per cent in time. Most applications are therefore granted, but every grant was a particular roof on a particular street, and none of them is a promise about yours. We use the figure to plan the timetable, not to predict the outcome. A reasoned application, drawn to the guidance and showing the neighbours, is the best preparation we can offer.

The Planning Service data shows 7 larger home extension prior approvals granted and 2 refused, a small sample but a relevant one. If your gable can rely on permitted development, a Lawful Development Certificate in Southwark proves it; if not, our planning drawings in Southwark carry the application.

The rules that apply when the right is open

Where Southwark's directions do not apply, the national rule is the starting point: 40 m³ (terrace house) / 50 m³ (any other house) additional roof volume. A hip-to-gable benefits from the carve-out that Eaves-retention and 0.2 m set-back conditions do not apply to a hip-to-gable enlargement. We tabulate the roof volume before and after, so the figure on the drawing is the figure that matters.

In a tall, narrow house the stair is often the hardest part. A section through the stairwell proves the headroom, and where it cannot reach the full height the fall-back 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).

Technical drawings, neighbours and the survey

Our building regulations drawings in Southwark take the chosen scheme into structure, fire and thermal detail. Where a terrace shares its roof structure with the houses either side, we survey how the timbers sit on the party walls before the beam is sized.

Older houses can hide surprises: chimney breasts removed at some earlier date, a lowered ceiling, a roof lantern. We record what is actually there with a measured survey, so the structural engineer designs the support the house needs and the builder prices from real dimensions.

A gable on the party line normally needs a party wall notice, and we flag it at the outset. If you also want a rear dormer, the dormer loft conversion drawings in Southwark page covers it.

Get a fixed quote

Send the address and a photo of the hipped end. The constraints check is free, and the fee that follows is fixed and includes VAT. No standard price is published, because each roof is different. Our wider work in the borough is at architectural drawings in Southwark, and the explainer for the service is hip-to-gable loft conversion drawings.