Planning application drawings in Mullion & St Keverne

Mullion & St Keverne planning decisions and design rules

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. Mullion & St Keverne contains CADGWITH, COVERACK conservation areas (CADGWITH designated 1978), 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) and postwar (1945–1970) housing stock sets the design brief on most streets.

Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. In conservation areas such as CADGWITH and COVERACK those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Mullion & St Keverne is determined against an 8-week statutory target.

CADGWITH (conservation area designated in 1978), COVERACK (conservation area designated in 1978), St. Keverne (civil parish within Mullion & St Keverne), Cury (civil parish within Mullion & St Keverne), Grade-Ruan (civil parish within Mullion & St Keverne), Gunwalloe (civil parish within Mullion & St Keverne), Landewednack (civil parish within Mullion & St Keverne) and Mullion (civil parish within Mullion & St Keverne) — these are the Mullion & St Keverne pockets our drawings cover most. Heritage designations here include CADGWITH and COVERACK. Cornwall Council weighs each proposal against Cornwall Council's development plan and the design policies it applies to householder applications, where the 3,870 homes here are 29% pre-1900, 13% 1973-1982, 10% 1965-1972, 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 shallow trussed roofs typical of 1970s building, over Victorian and earlier houses (29% of 3,870 homes), 1970s and early-1980s houses (13%) and late-1960s and early-1970s houses (10%).

Why a Mullion & St Keverne scheme is judged on Mullion & St Keverne terms

What is permitted in Mullion & St Keverne turns on designation first, so that is where we start: CADGWITH (conservation area designated in 1978) and COVERACK (conservation area designated in 1978). 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, Mullion & St Keverne takes in St. Keverne, Cury, Grade-Ruan, Gunwalloe, Landewednack and Mullion. No Article 4 direction is recorded for Cornwall Council, but Mullion & St Keverne's 2 conservation areas still limit permitted development on those streets.

On stock, Mullion & St Keverne is Victorian and earlier houses (29% of 3,870 homes), 1970s and early-1980s houses (13%) and late-1960s and early-1970s houses (10%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow trussed roofs typical of 1970s 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 draw to that record rather than to a national average.

The full build-period split for Mullion & St Keverne runs pre-1900 29% (1,130 homes), 1900-1918 2% (60 homes), 1919-1929 4% (160 homes), 1930-1939 5% (210 homes), 1945-1954 5% (190 homes), 1955-1964 6% (220 homes), 1965-1972 10% (370 homes), 1973-1982 13% (510 homes), 1983-1992 7% (280 homes), 1993-1999 3% (110 homes) and 2000-2008 5% (210 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 Land's End, so a decision in Mullion & St Keverne 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.

What goes in a Mullion & St Keverne planning application

Whatever you are building, Cornwall Council decides it from the same core set. A location plan at 1:1250 fixes the site on the map with the red-line boundary; a block plan at 1:500 shows the property in its plot; then existing and proposed floor plans and elevations at 1:100 or 1:50 show the house as it is and as it will be. Larger schemes add a section and, where policy requires, a design and access statement. Miss one and the application is returned invalid before an officer has looked at it.

The drawings are also the argument. Cornwall Council assesses each proposal against Cornwall Council's development plan and the design policies it applies to householder applications, and the elevations are where the case is won or lost — ridge and eaves heights, window positions, materials and how the change reads from the street. On Mullion & St Keverne's stock, which runs to Victorian and earlier houses (29% of 3,870 homes), 1970s and early-1980s houses (13%) and late-1960s and early-1970s houses (10%), the same scheme is drawn differently to answer the concerns officers raise here. Mullion & St Keverne contains CADGWITH, COVERACK conservation areas (CADGWITH designated 1978), so materials, fenestration and roof form are assessed against the appraisal, so the pack is built to pre-empt exactly that.

Where the property sits in a conservation area — CADGWITH and COVERACK among Mullion & St Keverne's — validation is stricter still, often demanding heritage detail and sometimes additional plans. No Article 4 direction is recorded for Cornwall Council, but Mullion & St Keverne's 2 conservation areas still limit permitted development on those streets. We confirm the designation before drawing so the pack meets the higher bar first time.