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Building regulations drawings for a Southwick Green project — technical construction details on site
Southwick Green · Building Control & Construction Drawings

Building regulations drawings in Southwick Green

Full-plans building regulations drawings for Southwick Green — the technical construction set covering structure, fire safety, insulation and Part L, drawn to satisfy building control so your builder can price and build with certainty, delivered in days and revised free until sign-off, with a free project check first.

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Householder planning in Southwick Green — the record

Adur District Council granted 96% of the householder planning decisions it made in its latest published year — 9 points above the 87% England-wide householder average. Southwick Green contains Kingston Buci, Southwick conservation areas (Kingston Buci designated 1977), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant Edwardian (1901–1910) and postwar (1945–1970) housing stock sets the design brief on most streets.

The permitted-development ceilings are fixed: 40m³ of new roof volume for a terraced loft and 50m³ for a semi or detached house under Class B, plus a 3m single-storey rear extension on a terrace or 4m on a detached house under Class A. Southwick Green carries at least one Article 4 direction, and conservation areas including Kingston Buci and Southwick remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Southwick Green is determined against an 8-week statutory target.

Kingston Buci (conservation area designated in 1977) and Southwick (conservation area designated in 1976) — these are the Southwick Green pockets our drawings cover most. Heritage designations here include Kingston Buci and Southwick. Adur District Council weighs each proposal against the adopted Adur local plan and Adur District Council's design guidance for householder work, where the 2,100 homes here are 19% 1900-1918, 19% 1955-1964, 13% 1983-1992, which is what sets the realistic roof and rear-projection options. On roofs the borough is pitched and hipped roofs with generous eaves typical of Edwardian building and shallow gabled roofs typical of that period's building, over Edwardian houses (19% of 2,100 homes), late-1950s and early-1960s houses (19%) and 1980s estate houses (13%).

Southwick Green: the local constraints that decide your scheme

Before anything is drawn we check your address against the designations that apply in Southwick Green: Kingston Buci (conservation area designated in 1977) and Southwick (conservation area designated in 1976). Inside those boundaries permitted development is curtailed and Adur District Council assesses materials, window detail and roof form against the area's own appraisal, so a scheme that would be waved through two streets away can need a full application here.

Adur District Council has 9 recorded Article 4 directions, removing permitted development for rear and side extensions and other roof alterations, including rooflights — check the address before assuming PD applies in Southwick Green.

On stock, Southwick Green is Edwardian houses (19% of 2,100 homes), late-1950s and early-1960s houses (19%) and 1980s estate houses (13%) — which is why pitched and hipped roofs with generous eaves typical of Edwardian building and shallow gabled roofs typical of that period's building govern what a loft or rear projection can realistically be. Adur District Council decided 210 householder applications in the latest published year and granted 96%, with 60% issued inside the eight-week target. That decision record, not a national figure, is what we design to.

The full build-period split for Southwick Green runs pre-1900 10% (200 homes), 1900-1918 19% (390 homes), 1919-1929 5% (110 homes), 1930-1939 12% (250 homes), 1945-1954 5% (110 homes), 1955-1964 19% (390 homes), 1965-1972 9% (190 homes), 1973-1982 5% (110 homes), 1983-1992 13% (270 homes) and 2000-2008 1% (20 homes). That distribution is why pre-1900 detailing dominates the drawings here, and it is measured from council-tax records rather than assumed from the street name.

Adur District Council also decides for Manor and St Mary's, so a decision in Southwick Green sits inside a wider pattern of decisions we track across the same authority — useful when an officer cites a precedent from the next area over.

The Article 4 directions recorded for this council include 1 Southdown Road, Southwick, Church Street, Shoreham-by-Sea, Kingston Buci Conservation Area and Land adjoining Steyning Road, Shoreham-by-Sea. Each removes a specific permitted-development right inside its own boundary, which is why the check is done on the address rather than on the town.

Southwick Green housing stock and council decisions, in figures

Published figures for Southwick Green and Adur District Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureSouthwick Green
Dwellings recorded2,100
Built pre-1900200 (10%)
Built 1900-1918390 (19%)
Built 1919-1929110 (5%)
Built 1930-1939250 (12%)
Built 1945-1954110 (5%)
Built 1955-1964390 (19%)
Built 1965-1972190 (9%)
Built 1973-1982110 (5%)
Built 1983-1992270 (13%)
Built 2000-200820 (1%)
Built before 191928%
Built 1919–193917%
Built 1945–200852%
Conservation areas in Southwick Green2 (Kingston Buci, Southwick)
Conservation areas district-wide7
Article 4 directions recorded9
Householder applications decided210
Householder applications granted96%
Decided within 8 weeks60%

Dwelling stock from VOA council-tax data at 31 March 2025; conservation-area and Article 4 counts from planning.data.gov.uk (MHCLG); decision figures are Adur District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

What building regulations drawings cover in Southwick Green

Planning permission decides whether you can build; the Building Regulations decide that what you build is safe, warm and sound. They are two separate approvals, run by different bodies, and a Southwick Green project usually needs both. The building regulations set is the technical layer beneath the planning drawings — construction sections, structural details, insulation build-ups and fire-safety provisions that a builder works from and a building control surveyor checks against the approved documents.

In practice that means Part A structure — beam and foundation details with the structural calculations behind them; Part B fire — escape, protected routes and, in a loft, a fire door and mains-linked alarms; Part L conservation of fuel and power — U-values, insulation and airtightness; plus drainage, ventilation and stairs. On Southwick Green's stock, which runs to Edwardian houses (19% of 2,100 homes), late-1950s and early-1960s houses (19%) and 1980s estate houses (13%), the recurring challenge is meeting Part L in solid-walled period houses without ruining the room, and we detail the insulation to hit the numbers with the least intrusion.

Building control applies everywhere in Southwick Green regardless of planning designation, but in conservation areas such as Kingston Buci and Southwick the two processes interact — insulation and window details often have to satisfy Part L and a planning condition at once. Adur District Council has 9 recorded Article 4 directions, removing permitted development for rear and side extensions and other roof alterations, including rooflights — check the address before assuming PD applies in Southwick Green. We draw the construction details to reconcile both.

Technical building regulations drawing set for a Southwick Green project

What do building regulations drawings need to show in Southwick Green?

A full-plans set for Southwick Green building control is checked against the Approved Documents. A typical extension or loft set covers each of these:

  • Part A structure — foundation, beam and floor details with the structural calculations behind them, sized for the spans found in Southwick Green's edwardian houses (19% of 2,100 homes)
  • Part B fire safety — escape windows, protected stairs and, in a loft, fire doors and mains-linked smoke alarms
  • Part L conservation of fuel and power — U-values, insulation build-ups and airtightness for every new thermal element, the hardest test to meet cleanly on Southwick Green's older stock
  • Drainage, ventilation and Part K stairs, with construction sections showing how each junction is built
  • The build-up of walls, floors and roof, so a Adur District Council or approved-inspector surveyor can check the work against the approved drawings on site

Southwick Green planning decisions — live from council data

Building control is a separate approval, but most Southwick Green projects clear planning first, so Adur District Council's live decision record below sets the context. Adur District Council granted 96% of its householder applications in the year to 31 March 2026, and Kingston Buci shapes what is approved here. We handle both stages, so the construction drawings follow through seamlessly once permission is granted.

Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.

96%householder applications approved in Adur
87%national average — Adur is 9 points above the national average

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Full plans or a building notice in Southwick Green?

There are two ways to get building control approval, and for anything structural in Southwick Green we recommend the full-plans route — particularly on the borough's edwardian houses (19% of 2,100 homes) and late-1950s and early-1960s houses (19%), where opening up an old structure tends to reveal surprises. A building notice lets work start with no approved drawings — cheaper up front, but the surveyor rules on compliance as the build proceeds, so a wrong detail is discovered mid-work and rebuilt at your cost. Full plans get the whole set checked and approved before a brick moves, which is what banks, warranty providers and future buyers want to see.

Full plans also protect the project commercially. With approved construction drawings your builder prices exact quantities rather than guessing, and there is a completion certificate at the end — the document a solicitor asks for when you sell across Kingston Buci and Southwick and the rest of Southwick Green. Where a project sits in a controlled setting — Southwick Green contains Kingston Buci, Southwick conservation areas (Kingston Buci designated 1977), so materials, fenestration and roof form are assessed against the appraisal — the construction details also have to respect what planning has conditioned, and we draw the full set and manage the building control submission to reconcile both.

Structural construction detailing for a Southwick Green building regulations set

Building control work across Southwick Green

Every structural project needs building regulations drawings whatever the planning position. A few of the Southwick Green neighbourhoods and property types where we prepare them most often:

Kingston Buci

Building regulations drawings for Kingston Buci's conservation area designated in 1977 — structure, fire and Part L detailed for building control sign-off.

Southwick

Building regulations drawings for Southwick's conservation area designated in 1976 — structure, fire and Part L detailed for building control sign-off.

Planning permission or building regulations — which does my Southwick Green project need?

They are different approvals and most projects need both. This is how they split in Southwick Green.

Planning permissionBuilding regulations
Question it answersShould this be built here?Is it built safely and efficiently?
Decided byAdur District Council planningBuilding control body or approved inspector
Main drawingsLocation, block, proposed plans & elevationsStructural, fire, thermal & construction details
Needed for permitted development?No — a certificate is optionalYes — always, before work starts

In conservation areas such as Kingston Buci and Southwick, a planning condition can dictate materials that the building regulations details must then also satisfy.

Four steps to building control sign-off in Southwick Green

A fixed process built around how Southwick Green projects are approved and inspected — most construction sets are ready within seven days of survey.

  1. 1

    Free project check

    Send us your Southwick Green postcode and scheme. We confirm whether you also need planning, which parts of the regulations apply, and whether Adur District Council building control or an approved inspector suits the job.

  2. 2

    Measured survey

    We measure the existing structure so the construction details, spans and junctions are drawn to the real building rather than an assumption — the base sound structural calculations depend on.

  3. 3

    Construction drawings & calculations

    Chartered designers and engineers produce the full-plans set — structure, fire, Part L thermal, drainage and details — with the structural calculations that support every beam and foundation.

  4. 4

    Submission & inspections

    We submit the full-plans application to your building control body, resolve any queries before work starts, and revise the drawings free until the set is approved and the work signed off.

Frequently asked questions

What is the difference between planning permission and building regulations in Southwick Green?

They are two separate approvals. Planning permission, decided by Adur District Council, answers whether a scheme should be built at all — its size, look and impact on neighbours. Building regulations, checked by a building control body, answer whether it is built safely and efficiently — structure, fire, insulation and drainage. A Southwick Green project usually needs both, and even permitted-development work that skips planning still needs building control sign-off.

Do I need building regulations drawings if I have planning permission in Southwick Green?

Yes — planning permission is not building control approval. The planning drawings show what the building looks like; building regulations drawings show how it is constructed, and no structural work in Southwick Green can lawfully complete without a building control sign-off. The two sets are drawn together but approved by different bodies, so having one never removes the need for the other. Adur District Council is the decision-maker.

Should I use full plans or a building notice in Southwick Green?

For anything structural in Southwick Green — a loft, an extension or removing a wall — we recommend full plans. The whole construction set is checked and approved before work starts, so a non-compliant detail is caught on paper rather than rebuilt on site. On the borough's edwardian houses (19% of 2,100 homes) that certainty matters, and a building notice — which lets a surveyor judge compliance as work proceeds — risks costly rework. Banks and warranty providers also prefer the approved full-plans set that Adur District Council or an approved inspector signs off.

Can I use a private building control surveyor instead of Adur District Council?

Yes. You can use Adur District Council's building control team or an independent approved inspector — both enforce the same regulations, so it comes down to price, availability and continuity. We draw the full-plans set to the same standard either way and submit it to whichever body you choose, then manage the queries and inspections through to the completion certificate. This applies to your Southwick Green address specifically.

How do you meet Part L insulation rules on older Southwick Green houses?

Solid-walled period houses — common across Southwick Green, including conservation areas such as Kingston Buci and Southwick — are the hardest to bring up to Part L without losing room or altering the fabric. We detail the insulation to hit the required U-values with the least intrusion, using internal or roof-level build-ups and, where a planning condition protects the exterior, methods that satisfy both the energy standard and the heritage requirement at once. Adur District Council is the decision-maker.

How much do building regulations drawings in Southwick Green cost?

We price each Southwick Green job individually, because the structural content and the size of the construction set vary from a single beam to a whole-house refurbishment, and send a fixed, no-obligation quote within one working day. It covers the full-plans drawings and structural calculations with free revisions until sign-off. The building control body's own fee is separate. Call 020 7864 7245 to start. Adur District Council is the decision-maker.

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