Dormer, hip-to-gable and mansard loft conversion drawings for Westgate homes — prepared to Canterbury City Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Canterbury City Council granted 97% of the householder planning decisions it made in its latest published year — 10 points above the 87% England-wide householder average. Westgate contains CANTERBURY ( LONDON ROAD ), CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 conservation areas (CANTERBURY ( LONDON ROAD ) designated 1996), 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.
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 Canterbury City Council needs a full application. Westgate carries at least one Article 4 direction, and conservation areas including CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Westgate is determined against an 8-week statutory target.
CANTERBURY ( LONDON ROAD ) (conservation area designated in 1996) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 (conservation area designated in 1996) — these are the Westgate pockets our drawings cover most. Heritage designations here include CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96. Canterbury City Council weighs each proposal against the adopted Canterbury local plan and Canterbury City Council's design guidance for householder work, where the 5,690 homes here are 26% pre-1900, 15% 2000-2008, 12% 1945-1954, 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 2000s building, over Victorian and earlier houses (26% of 5,690 homes), 2000s houses and apartments (15%) and early postwar houses (12%).
Heritage designation is the single biggest variable in Westgate, and it is address-specific: CANTERBURY ( LONDON ROAD ) (conservation area designated in 1996) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 (conservation area designated in 1996). Inside those boundaries permitted development is curtailed and Canterbury City 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.
Canterbury City Council has 463 recorded Article 4 directions — check the address before assuming PD applies in Westgate.
On stock, Westgate is Victorian and earlier houses (26% of 5,690 homes), 2000s houses and apartments (15%) and early postwar houses (12%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and trussed-rafter roofs typical of 2000s building govern what a loft or rear projection can realistically be. Canterbury City Council decided 580 householder applications in the latest published year and granted 97%, with 43% issued inside the eight-week target. We work from the council's own published record.
The full build-period split for Westgate runs pre-1900 26% (1,470 homes), 1900-1918 2% (100 homes), 1919-1929 2% (90 homes), 1930-1939 1% (80 homes), 1945-1954 12% (700 homes), 1955-1964 6% (340 homes), 1965-1972 3% (190 homes), 1973-1982 4% (210 homes), 1983-1992 8% (480 homes), 1993-1999 7% (400 homes) and 2000-2008 15% (850 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.
Canterbury City Council also decides for Blean Forest, Chestfield, Gorrell, Herne & Broomfield, Heron, St Stephen's, Wincheap and Little Stour & Adisham, so a decision in Westgate 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 CHURCH COTTAGES, CHURCH LANE, NACKINGTON, 1 BOURNE COTTAGES, THE STREET, BISHOPSBOURNE, 1 BOX TREE COTTAGES, BOLTS HILL and 1 BUTTS COTTAGES, LOWER HARDRES. 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 Westgate and Canterbury City Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Westgate |
|---|---|
| Dwellings recorded | 5,690 |
| Built pre-1900 | 1,470 (26%) |
| Built 1900-1918 | 100 (2%) |
| Built 1919-1929 | 90 (2%) |
| Built 1930-1939 | 80 (1%) |
| Built 1945-1954 | 700 (12%) |
| Built 1955-1964 | 340 (6%) |
| Built 1965-1972 | 190 (3%) |
| Built 1973-1982 | 210 (4%) |
| Built 1983-1992 | 480 (8%) |
| Built 1993-1999 | 400 (7%) |
| Built 2000-2008 | 850 (15%) |
| Built before 1919 | 28% |
| Built 1919–1939 | 3% |
| Built 1945–2008 | 56% |
| Conservation areas in Westgate | 2 (CANTERBURY ( LONDON ROAD ), CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96) |
| Conservation areas district-wide | 98 |
| Article 4 directions recorded | 463 |
| Householder applications decided | 580 |
| Householder applications granted | 97% |
| Decided within 8 weeks | 43% |
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 Canterbury City Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Westgate's roofs set the brief. The borough is built largely from Victorian and earlier houses (26% of 5,690 homes), 2000s houses and apartments (15%) and early postwar houses (12%), and its lofts sit under steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and trussed-rafter roofs typical of 2000s building — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Canterbury City Council assesses loft proposals against the adopted Canterbury local plan and Canterbury City 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 Canterbury City Council can verify them. Westgate contains CANTERBURY ( LONDON ROAD ), CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 conservation areas (CANTERBURY ( LONDON ROAD ) designated 1996), 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.
Westgate also carries protected streets — CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 among them. Canterbury City Council has 463 recorded Article 4 directions — check the address before assuming PD applies in Westgate. We check your address against those designations before a line is drawn.
Many Westgate 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 Canterbury City Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Canterbury City 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 Canterbury City Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Canterbury City Council granted 97% of its householder applications in the year to 31 March 2026, and CANTERBURY ( LONDON ROAD ) 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 CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96, 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 trussed-rafter roofs typical of 2000s building, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
The 5,690 homes here are 26% pre-1900, 15% 2000-2008, 12% 1945-1954, 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 Canterbury City 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 Westgate roofs come up most often:
Loft conversion drawings for CANTERBURY ( LONDON ROAD )'s conservation area designated in 1996 — measured, volume-checked and drawn to Canterbury City Council's guidance.
Loft conversion drawings for CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96's conservation area designated in 1996 — measured, volume-checked and drawn to Canterbury City Council's guidance.
The right loft in Westgate 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 Canterbury City 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 CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 and Article 4 directions can remove permitted-development rights.
A fixed process built around how Canterbury City Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Westgate 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 Canterbury City 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 Canterbury City Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Canterbury City 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 Westgate the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96 or on streets with an Article 4 direction. Canterbury City Council is the decision-maker.
Generally no. In conservation areas including CANTERBURY ( LONDON ROAD ) and CANTERBURY CITY (Canterbury Conservation Area) Reg 4.12.96, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Canterbury City Council. Canterbury City Council has 463 recorded Article 4 directions — check the address before assuming PD applies in Westgate. We check your exact address before drawing.
On steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, common across Westgate, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is trussed-rafter roofs typical of 2000s 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. Canterbury City Council is the decision-maker.
A householder planning application in Westgate 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. Canterbury City Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Canterbury City 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 Westgate address specifically.
Every roof is different, so we quote each Westgate project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Canterbury City 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.