Architectural drawings in SM1

Where in SM1 does a drawing package actually get determined?

Every SM1 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. SM1 fees below are the statutory England rates for 2026, not drawing package estimates.

How does a drawing package differ street by street across SM1?

Roof pitch, wall build-up and plot depth change every few SM1 streets, and each one changes what a drawing package can achieve at that address.

• Inside SM1: Sutton (SM1) — Edwardian centre, 1930s residential defines Sutton, where edwardian terraces, 1930s semi-detached set what a drawing package can do. Any Sutton drawing package is validated by Sutton Council, with Sutton High Street the usual Sutton reference point on the site plan.
• Bordering SM1: Carshalton (SM5) — a drawing package in Carshalton starts from victorian terraces, georgian villas, and Carshalton reads as Victorian and Georgian village. in SM5. Sutton Council assesses Carshalton architectural drawings against its own Carshalton character guidance, and the location plan we draw for Carshalton references Carshalton Ponds.
• Bordering SM1: Cheam (SM2, SM3) — Georgian village, 1930s semi-detached defines Cheam, where georgian villas, 1930s semi-detached set what a drawing package can do. Any Cheam drawing package is validated by Sutton Council, with Cheam Village the usual Cheam reference point on the site plan.
• Bordering SM1: Wallington (SM6) — Edwardian villas, 1930s semi-detached defines Wallington, where edwardian villas, 1930s semi-detached set what a drawing package can do. Any Wallington drawing package is validated by Sutton Council, with Wallington station the usual Wallington reference point on the site plan.
• Bordering SM1: Worcester Park (KT4) — drawing package work in Worcester Park means 1930s semi-detached. Worcester Park is 1930s semi-detached. Sutton Council decides the Worcester Park application, and Worcester Park station anchors the Worcester Park location plan.
• Bordering SM1: Belmont (SM2) — drawing package work in Belmont means 1930s semi-detached. Belmont is 1930s semi-detached. Sutton Council decides the Belmont application, and Belmont station anchors the Belmont location plan.
• Bordering SM1: Hackbridge (SM6) — drawing package work in Hackbridge means edwardian terraces, post-war. Hackbridge is Edwardian terraces, post-war. Sutton Council decides the Hackbridge application, and Hackbridge station anchors the Hackbridge location plan.

How do conservation areas and Article 4 affect a drawing package in SM1?

SM1 (Sutton) conservation designations: there are 17 across Sutton Council, Sutton Central, Carshalton Village, Beddington Park among them. Designation costs a SM1 (Sutton) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Carshalton Village is the SM1 (Sutton) designation that most often changes a drawing package design.

SM1 (Sutton) permitted development status: there is no borough-wide direction from Sutton Council, so a drawing package at a SM1 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a SM1 (Sutton) sale to argue it later.

What SM1 (Sutton) is built from: 1930s semi-detached dominates; Edwardian terraces and villas in Sutton central; Victorian cottages in Carshalton; post-war in Hackbridge. Outer south London suburban; generally permissive; Carshalton and Cheam conservation areas add heritage in pockets. That mix decides the drawing package route in SM1 (Sutton) more than the postcode does, and it is what a Sutton Council case officer reads first. A householder application costs £548 paid to Sutton Council direct, with 8 weeks to a decision once validated.

What happens if a SM1 property sits on a boundary?

• Merton — adjoining SM1 (Sutton), with 28 conservation areas centred on SW16. A drawing package on the far side of the SM1 (Sutton) line is determined by Merton Council, so the SM1 (Sutton) quote for architectural drawings is checked against Merton guidance before it is issued.
• Croydon — adjoining SM1 (Sutton), with 24 conservation areas centred on CR0. A drawing package on the far side of the SM1 (Sutton) line is determined by Croydon Council, so the SM1 (Sutton) quote for architectural drawings is checked against Croydon guidance before it is issued.
• Kingston upon Thames — the Kingston upon Thames boundary runs against Sutton, so a drawing package a street from SM1 (Sutton) is decided by Kingston Council instead. Kingston upon Thames runs 22 conservation areas across KT1 and its neighbours, which is why architectural drawings priced for SM1 (Sutton) are re-checked against Kingston upon Thames policy whenever the SM1 (Sutton) address sits on that edge.

Sources for this SM1 drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.