Dormer, hip-to-gable and mansard loft conversion drawings for Boughton and Courtenay homes — prepared to Swale Borough Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Swale Borough Council granted 94% of the householder planning decisions it made in its latest published year — 7 points above the 87% England-wide householder average. Boughton and Courtenay contains Boughton - Boughton Church, Boughton - Boughton Street, Boughton - South Street conservation areas (Boughton - Boughton Church designated 1976), 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. Boughton and Courtenay carries at least one Article 4 direction, and conservation areas including Boughton - Boughton Church, Boughton - Boughton Street and Boughton - South Street remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Boughton and Courtenay is determined against an 8-week statutory target.
Boughton - Boughton Church (conservation area designated in 1976), Boughton - Boughton Street (conservation area designated in 1970), Boughton - South Street (conservation area designated in 1975), Goodnestone (conservation area designated in 1999), Graveney - Graveney Bridge (conservation area designated in 1970), Graveney - Graveney Church (conservation area designated in 1999), Hernhill (conservation area designated in 1971), Hernhill - Dargate (conservation area designated in 1999), Hernhill - Fostall (conservation area designated in 1999), Selling (conservation area designated in 1973), Selling - Shepherd's Hill (conservation area designated in 2000), Sheldwich (conservation area designated in 1982), Staplestreet (conservation area designated in 1971), Boughton under Blean (civil parish within Boughton and Courtenay), Dunkirk (civil parish within Boughton and Courtenay), Graveney with Goodnestone (civil parish within Boughton and Courtenay), Hernhill (civil parish within Boughton and Courtenay), Selling (civil parish within Boughton and Courtenay) and Sheldwich (civil parish within Boughton and Courtenay) — these are the Boughton and Courtenay pockets our drawings cover most. Heritage designations here include Boughton - Boughton Church, Boughton - Boughton Street, Boughton - South Street, Goodnestone, Graveney - Graveney Bridge, Graveney - Graveney Church, Hernhill, Hernhill - Dargate, Hernhill - Fostall, Selling, Selling - Shepherd's Hill, Sheldwich and Staplestreet. Swale Borough Council weighs each proposal against the adopted Swale local plan and Swale Borough Council's design guidance for householder work, where the 2,590 homes here are 36% pre-1900, 9% 1955-1964, 9% 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 gabled roofs typical of that period's building, over Victorian and earlier houses (36% of 2,590 homes), late-1950s and early-1960s houses (9%) and late-1960s and early-1970s houses (9%).
What is permitted in Boughton and Courtenay turns on designation first, so that is where we start: Boughton - Boughton Church (conservation area designated in 1976), Boughton - Boughton Street (conservation area designated in 1970), Boughton - South Street (conservation area designated in 1975), Goodnestone (conservation area designated in 1999), Graveney - Graveney Bridge (conservation area designated in 1970), Graveney - Graveney Church (conservation area designated in 1999), Hernhill (conservation area designated in 1971), Hernhill - Dargate (conservation area designated in 1999), Hernhill - Fostall (conservation area designated in 1999), Selling (conservation area designated in 1973), Selling - Shepherd's Hill (conservation area designated in 2000), Sheldwich (conservation area designated in 1982) and Staplestreet (conservation area designated in 1971). Inside those boundaries permitted development is curtailed and Swale Borough 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, Boughton and Courtenay takes in Boughton under Blean, Dunkirk, Graveney with Goodnestone, Hernhill, Selling and Sheldwich. Swale Borough Council has 22 recorded Article 4 directions, removing permitted development for rear and side extensions — check the address before assuming PD applies in Boughton and Courtenay.
On stock, Boughton and Courtenay is Victorian and earlier houses (36% of 2,590 homes), late-1950s and early-1960s houses (9%) and late-1960s and early-1970s houses (9%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow gabled roofs typical of that period's building govern what a loft or rear projection can realistically be. Swale Borough Council decided 329 householder applications in the latest published year and granted 94%, with 37% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for Boughton and Courtenay runs pre-1900 36% (920 homes), 1900-1918 3% (70 homes), 1919-1929 1% (30 homes), 1930-1939 4% (110 homes), 1945-1954 7% (190 homes), 1955-1964 9% (240 homes), 1965-1972 9% (230 homes), 1973-1982 7% (190 homes), 1983-1992 7% (170 homes), 1993-1999 5% (120 homes) and 2000-2008 3% (70 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.
Swale Borough Council also decides for Abbey, Borden and Grove Park, East Downs, Sheerness, Teynham and Lynsted, Watling and West Downs, so a decision in Boughton and Courtenay 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 and 2 Flint Cottages, 20 East Street, 43-47, 49-51, 54, 56, 57, 59-72 Marine Parade and 49, 88, 90, 104, 114-128(evens), 132-140(evens) The Street and 1 & 2 Chapel Cottages. 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.
Published figures for Boughton and Courtenay and Swale Borough Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Boughton and Courtenay |
|---|---|
| Dwellings recorded | 2,590 |
| Built pre-1900 | 920 (36%) |
| Built 1900-1918 | 70 (3%) |
| Built 1919-1929 | 30 (1%) |
| Built 1930-1939 | 110 (4%) |
| Built 1945-1954 | 190 (7%) |
| Built 1955-1964 | 240 (9%) |
| Built 1965-1972 | 230 (9%) |
| Built 1973-1982 | 190 (7%) |
| Built 1983-1992 | 170 (7%) |
| Built 1993-1999 | 120 (5%) |
| Built 2000-2008 | 70 (3%) |
| Built before 1919 | 38% |
| Built 1919–1939 | 5% |
| Built 1945–2008 | 47% |
| Conservation areas in Boughton and Courtenay | 13 (Boughton - Boughton Church, Boughton - Boughton Street…) |
| Conservation areas district-wide | 52 |
| Article 4 directions recorded | 22 |
| Householder applications decided | 329 |
| Householder applications granted | 94% |
| Decided within 8 weeks | 37% |
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 Swale Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Boughton and Courtenay's roofs set the brief. The borough is built largely from Victorian and earlier houses (36% of 2,590 homes), late-1950s and early-1960s houses (9%) and late-1960s and early-1970s houses (9%), and its lofts sit under steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow gabled roofs typical of that period's building — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Swale Borough Council assesses loft proposals against the adopted Swale local plan and Swale Borough Council's design guidance for householder work, and its case officers read each roof against the pair next door and the wider street before they read the plans.
That makes drawing quality decisive. We measure ridge and eaves heights, roof pitch and the existing stair, calculate the added volume against the permitted-development limits exactly, and show the workings on the drawings so Swale Borough Council can verify them. Boughton and Courtenay contains Boughton - Boughton Church, Boughton - Boughton Street, Boughton - South Street conservation areas (Boughton - Boughton Church designated 1976), so materials, fenestration and roof form are assessed against the appraisal, so we resolve it on the page rather than leave it for the case officer to raise.
Boughton and Courtenay also carries protected streets — Boughton - Boughton Church, Boughton - Boughton Street, Boughton - South Street, Goodnestone, Graveney - Graveney Bridge, Graveney - Graveney Church, Hernhill, Hernhill - Dargate, Hernhill - Fostall, Selling, Selling - Shepherd's Hill, Sheldwich and Staplestreet among them. Swale Borough Council has 22 recorded Article 4 directions, removing permitted development for rear and side extensions — check the address before assuming PD applies in Boughton and Courtenay. We check your address against those designations before a line is drawn.
Many Boughton and Courtenay loft conversions proceed without planning permission — a rear dormer within the permitted-development volume limits (40 cubic metres on a terrace, 50 on a semi or detached house) is usually lawful. You will normally need a full application to Swale Borough Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Swale Borough Council's officers check first — and submit a validation-complete pack, whether that is a lawful development certificate or a full householder application.
Below is Swale Borough Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Swale Borough Council granted 94% of its householder applications in the year to 31 March 2026, and Boughton - Boughton Church shapes what is approved here. Professionally prepared loft drawings anticipate those pressure points before submission, which is why complete, policy-literate packs are decided faster and refused less often than DIY applications.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
Tell us about your project and get a fixed, no-obligation quote back within one working day. If you don't need planning permission at all, we'll tell you that too — for free.
Across Boughton - Boughton Church, Boughton - Boughton Street and Boughton - South Street, the recurring loft is the rear dormer — a box across the back roof slope that turns a cramped attic into a full-height double bedroom and en-suite. On steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, that is usually the most efficient use of the roof; where the stock is shallow gabled roofs typical of that period's building, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
The 2,590 homes here are 36% pre-1900, 9% 1955-1964, 9% 1965-1972, which is what sets the realistic roof and rear-projection options. We draw the dormer inside the volume allowance, keep the flat-roof build-up below the ridge, and set the face back from the eaves as the rules require — so the pack answers Swale Borough Council's questions before they are asked. Where permitted-development rights are exhausted or removed, we prepare a householder application composed to the borough's roof-alteration guidance instead.
We draw loft conversions on every street in the borough. A few of the neighbourhoods where Boughton and Courtenay roofs come up most often:
Loft conversion drawings for Boughton - Boughton Church's conservation area designated in 1976 — measured, volume-checked and drawn to Swale Borough Council's guidance.
Loft conversion drawings for Boughton - Boughton Street's conservation area designated in 1970 — measured, volume-checked and drawn to Swale Borough Council's guidance.
Loft conversion drawings for Boughton - South Street's conservation area designated in 1975 — measured, volume-checked and drawn to Swale Borough Council's guidance.
Loft conversion drawings for Goodnestone's conservation area designated in 1999 — measured, volume-checked and drawn to Swale Borough Council's guidance.
Loft conversion drawings for Graveney - Graveney Bridge's conservation area designated in 1970 — measured, volume-checked and drawn to Swale Borough Council's guidance.
Loft conversion drawings for Graveney - Graveney Church's conservation area designated in 1999 — measured, volume-checked and drawn to Swale Borough Council's guidance.
The right loft in Boughton and Courtenay depends on your roof. This is how the main types compare on planning route and the space they add.
| Loft type | Permitted development? | Space & headroom | What Swale Borough Council checks |
|---|---|---|---|
| Rear dormer | Usually yes, within volume limits | Full-height double room at the back | Volume, set-back from eaves, ridge height |
| Hip-to-gable | No — full application | Extends the whole side of the roof | Roof bulk and the symmetry of the pair |
| Mansard | No — full application | Maximum floor area across the roof | Street character, especially in conservation areas |
| Rooflights only | Usually yes (Class C) | Light and headroom, no extra footprint | Whether rooflights sit within the existing slope |
Route depends on your street — conservation areas such as Boughton - Boughton Church and Boughton - Boughton Street and Article 4 directions can remove permitted-development rights.
A fixed process built around how Swale Borough Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Boughton and Courtenay postcode and roof type. We confirm your conservation and Article 4 status, how much permitted-development volume you have left, and score your odds against live Swale Borough Council decisions.
We measure ridge and eaves heights, roof pitch, joist levels and the existing stair — the numbers the volume calculation and head heights depend on.
Chartered designers develop the dormer, hip-to-gable or mansard to your brief, drawn inside the Class B limits or to Swale Borough Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Swale Borough Council issues its decision.
Often not. A rear dormer within 40 cubic metres on a terrace, or 50 on a semi-detached or detached house, set back from the eaves and no higher than the ridge, is usually permitted development. In Boughton and Courtenay the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Boughton - Boughton Church and Boughton - Boughton Street or on streets with an Article 4 direction. Swale Borough Council is the decision-maker.
Generally no. In conservation areas including Boughton - Boughton Church and Boughton - Boughton Street, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Swale Borough Council. Swale Borough Council has 22 recorded Article 4 directions, removing permitted development for rear and side extensions — check the address before assuming PD applies in Boughton and Courtenay. We check your exact address before drawing.
On steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, common across Boughton and Courtenay, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is shallow gabled roofs typical of that period's building, a hip-to-gable followed by a rear dormer gains far more usable space but needs planning permission. Our survey confirms which your roof supports before we draw. Swale Borough Council is the decision-maker.
A householder planning application in Boughton and Courtenay runs to a statutory eight-week target, and a lawful development certificate to eight weeks as well, though validation can add time if the pack is incomplete. We submit validation-complete drawings and manage case-officer queries to keep the decision on track. Swale Borough Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Swale Borough Council is council-stamped proof of that — worth having, because every buyer's solicitor will ask for it when you sell. We prepare and submit the certificate application with the same drawing pack. This applies to your Boughton and Courtenay address specifically.
Every roof is different, so we quote each Boughton and Courtenay project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Swale Borough Council approves, and we tell you upfront whether your loft qualifies as permitted development. Call 020 7864 7245 to start.
Answer five quick questions and get a free planning score for your exact address — instantly. Then, if you want the full picture, unlock the detailed analysis: your council's live approval rates, local precedents, constraints on your street and a step-by-step route to permission.
Same fixed quotes, same fast drawings — wherever your project is.