Architectural drawings in Sutton

The loft question: Sutton's roof alterations rule

Council data notes record a borough-wide Article 4 direction on roof alterations, which requires permission for roof extensions and dormers that would otherwise be permitted development. We confirm its current extent for your street during the free address check.

A loft that could be permitted development in another borough may need a full application here, so our loft conversion drawings in Sutton are prepared as a planning submission unless the check shows otherwise.

Loft work starts from £695 including VAT, with the fee fixed before we begin.

If the roof direction applies, a dormer is judged on design, so proportions, materials and the relationship with neighbouring roofs get more attention than the size alone. A roof light conversion that leaves the roof plane almost untouched is often the simplest case, and we draw that option too.

Sutton's guidance and local plan

The development plan is the Sutton Local Plan 2016-2031, adopted in 2,018. Two supplementary documents matter for home projects: the Design of Residential Extensions SPD and the Urban Design Guide SPD.

The first covers how an extension should relate to the host house and the neighbours. The second covers wider design questions such as how a scheme fits a street. We prepare each drawing set to answer both.

We aim for an extension that reads as part of the house, so we match brick, roof pitch and window proportions and say so in a short design note.

Heritage, green belt and trees

Sutton has 8 conservation areas, and most of the borough lies outside them. Historic England lists 209 buildings: 1 at Grade I, 14 at Grade II* and 191 at Grade II.

About 14 per cent of the borough is covered by green-belt designation, and 7 heritage entries are on the at-risk register. If your home is near either, we mention it in the first reply.

We also check for protected trees on and beside your plot, because a root zone can limit where a rear extension may go.

Decisions, timing and prior approval in Sutton

The council decided 601 householder applications in the latest twelve months and granted 91.8 per cent. It decided 94.8 per cent within eight weeks or an agreed extension.

The prior approval route for larger home extensions went the other way: 9 granted against 35 refused. Where neighbours object, the council assesses their amenity, so we weigh that before recommending the faster route.

These figures describe the borough's past record, not any single house.

The first thing we do with a refusal on your street is read it. It tells us what the council objected to, and whether the objection would apply to you.

Levy, fees and the cost picture

Sutton is in band 3 of the Mayor of London's levy. The council's London Borough of Sutton Community Infrastructure Levy (CIL) Charging Schedule April 2014 sets £100/m² (Residential, borough-wide). The borough also applies an Article 4 direction to houses in multiple occupation.

Our own fee is fixed and published. The council's application fee is paid to the council, and your next-steps pack lists any levy.

Where the borough charge applies, it is calculated on new floorspace, and we show the area on the drawings so you can estimate it.

Architectural drawings in Sutton, and the councils next door

Beyond lofts, homeowners ask for rear extension drawings in Sutton, garage conversion plans in Sutton and planning drawings in Sutton. If you suspect no application is needed, a Lawful Development Certificate in Sutton records it formally.

Our pages for Croydon, Merton and Kingston upon Thames cover the surrounding boroughs.

How we take a Sutton job from survey to approval

A measured survey, a Revit model, options in plan and 3D, then a frozen design. A second chartered technologist checks every sheet before it goes to the council, and redraws are free until approval.