House Extension Drawings in Hackbridge |

No Article 4 Direction covers Sutton, which keeps the Hackbridge permitted-development route open on unlisted houses. Because Hackbridge is Edwardian terraces, post-war, the officer's assessment leans on streetscape impact around Hackbridge station as much as on the numbers. Beddington Park is the designation that most often reshapes a Hackbridge proposal; Sutton carries 17 of them. Conservation status is checked against the Hackbridge address before design.

We check Article 4 directions against the Hackbridge address first — it changes what is worth drawing. The edwardian terraces governs the numbers on a Hackbridge site: rear wall, eaves, and how far a ridge can rise beside Hackbridge station. The borough policy layer over every SM6 address is set out on Sutton planning. The Hackbridge survey then carries into building regulations drawings in Hackbridge if the project runs on to construction.

Before Sutton Council determines anything, London Borough of Sutton has to validate the Hackbridge submission — one to two weeks, longer if a plan is missing. The Hackbridge job starts with a laser survey, not a sketch.

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.

Once Sutton Council registers the Hackbridge case, the officer site visit usually follows within a fortnight. We format the Hackbridge set exactly as Sutton Council wants to receive it.

Objection volume on Hackbridge cases is public — we read it before advising. Levels between front and rear of a Hackbridge house are recorded, not assumed.

Because Hackbridge houses generally share walls, budget time for party wall notices alongside the SM6 application. Once consent is granted, loft conversion drawings follows for the SM6 property.

Hackbridge is characterised by edwardian terraces, post-war, concentrated across SM6 in the Wallington / Hackbridge area. Across SM6 the edwardian terraces repeats often enough to be predictable, once it has been measured properly. On the Hackbridge stock specifically: edwardian plots here are wider, so a wraparound picking up both the side return and the rear is normally achievable within the 4 m detached / 3 m attached limits. That is drawn out in the Hackbridge proposed section. Massing on a Hackbridge scheme is argued against the Hackbridge station street rhythm.

Basement work at a Hackbridge address is judged on amenity, drainage and structure. Because the Hackbridge survey is drawn properly once, architectural drawings for SM6 properties and planning permission build on it rather than starting again.

What the Hackbridge drawing pack contains

Everything a Hackbridge submission needs is in the list below.

• existing and proposed ground-floor plans for the Hackbridge property
• proposed rear elevation
• long section through the extension
• site and block plans
• party wall position drawing

Local landmarks that shape a Hackbridge application

• Hackbridge station — a Hackbridge roof extension is judged against the datum it sets.
• Thornton Heath — massing on adjoining SM6 plots is tested against it.

Getting to a Hackbridge survey

Surveyors travel to SM6 addresses from the studio; the nearest stations are Hackbridge, London Victoria, Blackfriars station, London Bridge station. Appointments are booked in Hackbridge on weekdays and Saturdays, and the measured survey of a standard edwardian terraces takes two to three hours.

Where Hackbridge sits

Hackbridge lies 8.8 miles (15 km) south-west of Charing Cross, on Ordnance Survey grid reference TQ285685. Getting that wrong is the commonest reason a Hackbridge submission is returned. Source.

Practical detail for a Hackbridge submission: we reach Hackbridge sites via Hackbridge and London Victoria and Blackfriars station and London Bridge station; the Hackbridge post town is WALLINGTON; dialling code 020. Site plans are drawn to the address as Sutton Council holds it.

Hackbridge postcode coverage

Coverage runs across SM6 (Wallington / Hackbridge), shared with Wallington — and Sutton Council validates against the address, so the district line matters more than the street name.

Streets and stations in Hackbridge

Most Hackbridge sites are within walking distance of Hackbridge or London Victoria or Blackfriars station.

Areas we cover around Hackbridge

Coverage from Hackbridge extends to Norbiton (KT2), Coombe (KT2, KT3), Sutton (SM1), Carshalton (SM5), Cheam (SM2, SM3), Wallington (SM6) and into Croydon.

Two Hackbridge jobs differ in price because of the edwardian terraces and the Beddington Park designation, never because of hours booked.

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.

That charge is London Borough of Sutton's, taken when the Hackbridge application is lodged. London planning approval-rate dataset · Sutton planning · the London house extension drawings pillar page · house extension drawings in Norbiton.

Every Hackbridge drawing set is produced and signed off by a chartered member of the Chartered Institute of Architectural Technologists (MCIAT). Borderline Hackbridge sites (anything overlooking Hackbridge station, anything with a Beddington Park frontage) go to Sutton Council for pre-application advice before we submit.

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.

Give us the SM6 postcode and we will tell you which route applies. This Hackbridge page was reviewed in August 2026.