Loft Conversion Drawings in Streatham | From £1,225

An Article 4 Direction applies across Lambeth, so check it before assuming Streatham permitted development survives. Being Edwardian terraces, post-war flats, Streatham rewards schemes that sit quietly beside Streatham High Road. Of the 64 conservation areas Lambeth designates, Brockwell Park and Streatham Hill are the ones that most often change how a Streatham project is routed. Designation status for the SW16 address is established first.

That check — Article 4 directions against the Streatham property — happens on day one. Measure a SW16 property and the edwardian terraces answers most of it — where the original rear wall sat, and what height the Streatham street will carry. The borough policy layer over every SW16 address is set out on Lambeth planning. The Streatham survey then carries into house extension drawings in Streatham if the project runs on to construction.

Expect one to two weeks of London Borough of Lambeth validation on a Streatham submission before the statutory period even begins. We start with a full laser survey of the Streatham address so the existing set is dimensionally right before anything proposed is drawn.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

Consultation responses on a Streatham scheme are public and readable before the decision. The Streatham pack is validated against London Borough of Lambeth requirements before submission.

Objections on a Streatham case usually come from the immediate neighbours, not the wider SW16 area. The Streatham survey includes the boundary line and neighbouring window positions.

Serve party wall notices early where SW16 neighbours share a flank wall — on Streatham terraces they nearly always do. Once consent is granted, architectural drawings follows for the SW16 property.

Streatham is characterised by edwardian terraces, post-war flats, concentrated across SW16 in the Streatham / Norbury area. On Streatham streets the edwardian terraces sets the structural grammar for everything that follows. What that means for a SW16 address: edwardian roofs run deeper front-to-back, so an L-shaped dormer over the back addition usually yields a second bedroom as well as the shower room. In SW16 that determines the depth we can draw. Case officers at Lambeth Council look first at whether a SW16 scheme keeps the eaves and ridge line of the Streatham row.

A SW16 dig turns on engineering more than on policy. A Streatham survey done once feeds planning permission for SW16 properties and building regulations drawings later.

What the Streatham drawing pack contains

This is the full SW16 deliverable at the quoted fee.

• existing roof plan and section for the Streatham property
• proposed dormer elevations
• volume calculation sheet
• staircase and head-height sections
• structural steel layout

Streets and landmarks we survey around Streatham

• Herne Hill — frontages visible from the highway, so Brockwell Park materials detail governs the Herne Hill elevation.
• Streatham Park — frontages visible from the highway, so Brockwell Park materials detail governs the Streatham Park elevation.
• Bedford Park — front-to-back level changes that drive the Bedford Park section drawings.
• Talgarth Road — closet wings that change how a rear extension meets the Talgarth Road back addition.
• Streatham High Road — closet wings that change how a rear extension meets the Streatham High Road back addition.
• Daphne Park — front-to-back level changes that drive the Daphne Park section drawings.
• Raman Subba Row — terraced rear elevations — the Raman Subba Row party wall position is drawn first.
• Clapham Park — side returns where the 45-degree amenity test decides how far a Clapham Park extension goes.
• Streatham High Road — proposals in its setting are drawn with the Streatham context elevation.
• Bishop Thomas Grant School — massing on adjoining SW16 plots is tested against it.
• Dunraven School — massing on adjoining SW16 plots is tested against it.
• Woodmansterne School — sightlines from here are part of the Lambeth Council character assessment.
• London Steiner School — schemes visible from it get closer scrutiny in Lambeth.

Getting to a Streatham survey

Surveyors travel to SW16 addresses from the studio; the nearest stations are Streatham Hill, Streatham, electricity substation, Streatham station. Appointments are booked in Streatham on weekdays and Saturdays, and the measured survey of a standard edwardian terraces takes two to three hours.

Where Streatham sits

Streatham lies 5 miles (8 km) south of Charing Cross, on Ordnance Survey grid reference TQ305715, inside the Streatham and Croydon North parliamentary constituency. Every Streatham application opens with a location plan tied to that grid square; get it wrong and Lambeth Council returns the submission unvalidated. Source.

Practical detail for a Streatham submission: Streatham Hill and Streatham and electricity substation and Streatham station serve the area; post town for the area is LONDON; dialling code 020. Site plans are drawn to the address as Lambeth Council holds it.

Streatham postcode coverage

Streatham work spans SW16 (Streatham / Norbury), which Streatham holds on its own — the designations change with the district line.

Streets and stations in Streatham

Streatham addresses we have drawn run to Herne Hill, Streatham Park, Bedford Park, Talgarth Road, Streatham High Road, Daphne Park, Raman Subba Row and Clapham Park. most Streatham sites are within walking distance of Streatham Hill or Streatham or electricity substation.

Areas we cover around Streatham

Streatham sits in a patch that also takes in Maida Vale (W9), Clapham (SW4), Brixton (SW2, SW9), Herne Hill (SE24), Kennington (SE11), Stockwell (SW9), and we work all of it as far as the Westminster boundary.

You know the number before the surveyor is booked. What changes a Streatham fee is the property: edwardian terraces construction, shared walls on SW16, and whether heritage input is needed.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

On a SW16 submission the statutory fee goes straight to London Borough of Lambeth. London planning approval-rate dataset · Lambeth planning · Loft Conversion Drawings London-wide · loft conversion drawings in Maida Vale.

Streatham work is issued under MCIAT charter, the technical-design and building-regulations qualification. For difficult Streatham sites — anything in Brockwell Park, anything overlooking Streatham High Road — the pre-application route is cheap insurance.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

We survey Streatham properties within a few days of instruction. This Streatham page was reviewed in August 2026.