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House extension plans in Land's End — a glazed single-storey rear extension on a period home
Land's End · House Extension Drawings & Planning

House extension plans in Land's End

Single-storey, double-storey, rear and side extension drawings for Land's End homes — measured to Cornwall Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.

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What the data says about planning in Land's End

Cornwall Council granted 97% of the householder planning decisions it made in its latest published year — 10 points above the 87% England-wide householder average. Land's End contains BOJEWYAN, BOSCASWELL, BOTALLACK & TRUTHWALL conservation areas (BOJEWYAN designated 2002), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901) housing stock sets the design brief on most streets.

Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Cornwall Council needs a full application. In conservation areas such as BOJEWYAN, BOSCASWELL and BOTALLACK & TRUTHWALL those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Land's End is determined against an 8-week statutory target.

BOJEWYAN (conservation area designated in 2002), BOSCASWELL (conservation area designated in 2002), BOTALLACK & TRUTHWALL (conservation area designated in 2002), CARNYORTH (conservation area designated in 2002), NANCHERROW & TREGESEAL (conservation area designated in 1995), PENDEEN (conservation area designated in 2002), SANCREED CHURCHTOWN (conservation area designated in 1990), SENNEN COVE (conservation area designated in 1991), ST JUST (conservation area designated in 1972), TREWELLARD (conservation area designated in 2002), St. Levan (civil parish within Land's End), Sancreed (civil parish within Land's End), Sennen (civil parish within Land's End) and St. Just (civil parish within Land's End) — these are the Land's End pockets our drawings cover most. Heritage designations here include BOJEWYAN, BOSCASWELL, BOTALLACK & TRUTHWALL, CARNYORTH, NANCHERROW & TREGESEAL, PENDEEN, SANCREED CHURCHTOWN, SENNEN COVE, ST JUST and TREWELLARD. Cornwall Council weighs each proposal against Cornwall Council's development plan and the design policies it applies to householder applications, where the 4,780 homes here are 51% pre-1900, 8% 1983-1992, 7% 1973-1982, which is what sets the realistic roof and rear-projection options. On roofs the borough is steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and trussed-rafter roofs typical of 1980s building, over Victorian and earlier houses (51% of 4,780 homes), 1980s estate houses (8%) and 1970s and early-1980s houses (7%).

Designations, stock and decisions in Land's End

Heritage designation is the single biggest variable in Land's End, and it is address-specific: BOJEWYAN (conservation area designated in 2002), BOSCASWELL (conservation area designated in 2002), BOTALLACK & TRUTHWALL (conservation area designated in 2002), CARNYORTH (conservation area designated in 2002), NANCHERROW & TREGESEAL (conservation area designated in 1995), PENDEEN (conservation area designated in 2002), SANCREED CHURCHTOWN (conservation area designated in 1990), SENNEN COVE (conservation area designated in 1991), ST JUST (conservation area designated in 1972) and TREWELLARD (conservation area designated in 2002). Inside those boundaries permitted development is curtailed and Cornwall 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.

Beyond the designated areas, Land's End takes in St. Levan, Sancreed, Sennen and St. Just. No Article 4 direction is recorded for Cornwall Council, but Land's End's 10 conservation areas still limit permitted development on those streets.

On stock, Land's End is Victorian and earlier houses (51% of 4,780 homes), 1980s estate houses (8%) and 1970s and early-1980s houses (7%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and trussed-rafter roofs typical of 1980s building govern what a loft or rear projection can realistically be. Cornwall Council decided 1,863 householder applications in the latest published year and granted 97%, with 76% issued inside the eight-week target. We work from the council's own published record.

The full build-period split for Land's End runs pre-1900 51% (2,420 homes), 1900-1918 1% (50 homes), 1919-1929 2% (80 homes), 1930-1939 3% (120 homes), 1945-1954 3% (120 homes), 1955-1964 3% (160 homes), 1965-1972 6% (300 homes), 1973-1982 7% (340 homes), 1983-1992 8% (380 homes), 1993-1999 3% (120 homes) and 2000-2008 4% (200 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.

Cornwall Council also decides for Bodmin St Petroc's, Bude, Camborne Trelowarren, Camelford & Boscastle, Falmouth Arwenack, Feock & Kea, Hayle West and Looe East & Deviock, so a decision in Land's End 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 published numbers behind a Land's End application

Published figures for Land's End and Cornwall Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureLand's End
Dwellings recorded4,780
Built pre-19002,420 (51%)
Built 1900-191850 (1%)
Built 1919-192980 (2%)
Built 1930-1939120 (3%)
Built 1945-1954120 (3%)
Built 1955-1964160 (3%)
Built 1965-1972300 (6%)
Built 1973-1982340 (7%)
Built 1983-1992380 (8%)
Built 1993-1999120 (3%)
Built 2000-2008200 (4%)
Built before 191952%
Built 1919–19394%
Built 1945–200834%
Conservation areas in Land's End10 (BOJEWYAN, BOSCASWELL…)
Conservation areas district-wide145
Article 4 directions recorded0
Householder applications decided1,863
Householder applications granted97%
Decided within 8 weeks76%

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 Cornwall Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

Extension plans built around Cornwall Council's rules

Land's End homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from Victorian and earlier houses (51% of 4,780 homes), 1980s estate houses (8%) and 1970s and early-1980s houses (7%), so a Victorian terrace usually wants a rear or side-return infill, while an interwar semi has room for a wider single-storey wrap or a two-storey side addition. Cornwall Council judges every one of them against Cornwall Council's development plan and the design policies it applies to householder applications, weighing footprint, height and the impact on the house next door before it looks at the elevations.

That is why the drawings decide the outcome. We set the extension depth against the permitted-development limits precisely, keep the eaves and ridge within the allowances, and plot the 45-degree daylight lines to the neighbours' windows so the case officer can see the amenity test is passed. Land's End contains BOJEWYAN, BOSCASWELL, BOTALLACK & TRUTHWALL conservation areas (BOJEWYAN designated 2002), so materials, fenestration and roof form are assessed against the appraisal, so we design around it from the first sketch rather than discover it at validation.

Land's End also protects whole streets — BOJEWYAN, BOSCASWELL, BOTALLACK & TRUTHWALL, CARNYORTH, NANCHERROW & TREGESEAL, PENDEEN, SANCREED CHURCHTOWN, SENNEN COVE, ST JUST and TREWELLARD among them. No Article 4 direction is recorded for Cornwall Council, but Land's End's 10 conservation areas still limit permitted development on those streets. On designated land the larger-home extension route and most side extensions stop being permitted development, so we confirm your address against those layers before drawing a line.

Isometric house extension drawing for a Land's End home

Do I need planning permission to extend my house in Land's End?

Plenty of Land's End extensions are permitted development and need no planning application — a single-storey rear extension within the depth and height limits is the common case. You will normally need to apply to Cornwall Council if any of these apply:

  • The single-storey rear extension is deeper than 3 metres on a terrace or semi, or 4 metres on a detached house (6m/8m needs prior approval under the larger-home scheme)
  • It is a two-storey or double-storey extension, or the rear extension is higher than 4 metres
  • A side extension is wider than half the original house, or more than one storey
  • Any part projects forward of the principal (front) elevation, or the extension covers more than half the garden
  • Your home is in a conservation area such as BOJEWYAN and BOSCASWELL, where the larger-home route and side extensions are not permitted development

Land's End extension approval rates — live from council data

Below is Cornwall Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Cornwall Council granted 97% of its householder applications in the year to 31 March 2026, and BOJEWYAN shapes what is approved here. A complete, policy-literate extension pack anticipates those pressure points before submission, which is why professionally drawn applications are decided faster and refused less often than DIY ones.

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

97%householder applications approved in Cornwall
87%national average — Cornwall is 10 points above the national average

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Which extensions get approved in Land's End

Across BOJEWYAN, BOSCASWELL and BOTALLACK & TRUTHWALL, the extension that lands most often is the single-storey rear addition — a glazed kitchen-diner across the back of the house, kept within the permitted-development depth or taken to a full application where the ground floor wants more. On the borough's victorian and earlier houses (51% of 4,780 homes), a side-return infill frequently pairs with it to square off the plan; on wider 1970s and early-1980s houses (7%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.

The 4,780 homes here are 51% pre-1900, 8% 1983-1992, 7% 1973-1982, which is what sets the realistic roof and rear-projection options. We size the extension to the amenity and daylight tests, match the roof and materials to the host house, and keep enough garden to satisfy Cornwall Council's space standards — so the scheme answers the borough's questions before an objection can raise them. Where permitted-development rights are used up or removed, we prepare the householder application to the council's extension design guidance instead.

Single-storey rear extension opening onto the garden of a Land's End house

House extensions across Land's End

We draw extensions on every street in the borough. A few of the neighbourhoods where Land's End projects come up most often:

BOJEWYAN

Extension drawings for BOJEWYAN's conservation area designated in 2002 — footprint-checked, daylight-tested and drawn to Cornwall Council's guidance.

BOSCASWELL

Extension drawings for BOSCASWELL's conservation area designated in 2002 — footprint-checked, daylight-tested and drawn to Cornwall Council's guidance.

BOTALLACK & TRUTHWALL

Extension drawings for BOTALLACK & TRUTHWALL's conservation area designated in 2002 — footprint-checked, daylight-tested and drawn to Cornwall Council's guidance.

CARNYORTH

Extension drawings for CARNYORTH's conservation area designated in 2002 — footprint-checked, daylight-tested and drawn to Cornwall Council's guidance.

NANCHERROW & TREGESEAL

Extension drawings for NANCHERROW & TREGESEAL's conservation area designated in 1995 — footprint-checked, daylight-tested and drawn to Cornwall Council's guidance.

PENDEEN

Extension drawings for PENDEEN's conservation area designated in 2002 — footprint-checked, daylight-tested and drawn to Cornwall Council's guidance.

Which extension suits your Land's End home?

The right extension in Land's End depends on your house type and how much garden you can give up. This is how the main options compare on planning route and what they add.

Extension typePermitted development?What it addsWhat Cornwall Council checks
Single-storey rearOften, within 3m/4m depth (6m/8m via prior approval)Bigger kitchen-diner across the backDepth, height, neighbour daylight (45°)
Side-return infillSometimes, if within width and height limitsSquares off an L-shaped ground floorWidth vs the original house, glazing to boundary
Two-storey rear/sideNo — full applicationExtra bedroom or bathroom aboveBulk, overlooking, 7m rear-boundary gap
Wraparound (rear + side)No — full applicationWhole-width open-plan ground floorCombined footprint and garden retained

Route depends on your street — conservation areas such as BOJEWYAN and BOSCASWELL and Article 4 directions can remove permitted-development rights.

Four steps to an approved Land's End extension

A fixed process built around how Cornwall Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.

  1. 1

    Free approval check

    Tell us your Land's End postcode and house type. We confirm your conservation and Article 4 status, how much permitted-development depth you have left, and score your odds against live Cornwall Council decisions.

  2. 2

    Measured survey

    We measure the existing footprint, floor and eaves levels, boundary distances and the neighbours' window positions — the numbers the depth limits and daylight tests depend on.

  3. 3

    Extension design & drawings

    Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to Cornwall Council's extension design guidance.

  4. 4

    Submission & follow-through

    We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until Cornwall Council issues its decision.

Frequently asked questions

Do I need planning permission to extend my house in Land's End?

Not always. A single-storey rear extension up to 3 metres deep on a terrace or semi, or 4 metres on a detached house, and no higher than 4 metres, is usually permitted development. In Land's End you will need to apply to Cornwall Council for two-storey extensions, side extensions wider than half the house, anything forward of the front wall, deeper rear extensions under the larger-home prior-approval route, and any extension in a conservation area such as BOJEWYAN and BOSCASWELL.

How deep can a single-storey rear extension go in Land's End without planning permission?

Standard permitted development allows 3 metres on a terraced or semi-detached house and 4 metres on a detached one. The larger-home extension scheme can double that to 6 or 8 metres, but it needs a prior-approval notification to Cornwall Council and a neighbour-consultation period, and it does not apply on designated land such as Land's End's conservation areas. We confirm which route your property qualifies for before drawing.

Can I build a double-storey extension in Land's End?

Two-storey and double-storey extensions almost always need a full householder application to Cornwall Council, because they fall outside permitted development on most homes. The council looks closely at bulk, overlooking of neighbours and the 7-metre gap a two-storey rear extension must keep from the rear boundary. We design to those tests and show the daylight and privacy angles on the drawings. This applies to your Land's End address specifically.

How long does Cornwall Council take to decide an extension application?

A householder planning application in Land's End runs to a statutory eight-week target, a larger-home prior-approval notification to around six weeks including the neighbour-consultation period, and a lawful development certificate to eight weeks. Incomplete submissions stall at validation, so we submit a complete pack and manage officer queries to keep the decision on schedule. Cornwall Council is the decision-maker.

Will my extension in Land's End need building regulations approval as well as planning?

Yes — planning permission and building regulations are separate consents, and almost every extension needs both. Planning governs whether you can build it; building control governs how it is built, covering structure, insulation, drainage and fire safety. We prepare the building-regulations drawings alongside the planning set so Cornwall Council's building control or an approved inspector can sign the work off. This applies to your Land's End address specifically.

How much do extension plans in Land's End cost?

Every house and brief is different, so we price each Land's End extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Cornwall Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.

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