Dormer, hip-to-gable and mansard loft conversion drawings for West Devon homes — prepared to West Devon Borough Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
West Devon Borough Council granted 93% of the householder planning decisions it made in its latest published year — 6 points above the 87% England-wide householder average. West Devon contains Bere Alston, Bere Ferrers, Bondleigh conservation areas (Bere Alston designated 1992), 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 West Devon Borough Council needs a full application. In conservation areas such as Bere Alston, Bere Ferrers and Bondleigh those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in West Devon is determined against an 8-week statutory target.
Bere Alston (conservation area designated in 1992), Bere Ferrers (conservation area designated in 1979), Bondleigh (conservation area designated in 1995), Broadwood-kelly (conservation area designated in 1993), Buckland Monachorum (conservation area designated in 1977), Exbourne (conservation area designated in 1980), Hatherleigh (conservation area designated in 1973), Lamerton (conservation area designated in 1993), Bere Ferrers (ward of West Devon), Buckland Monachorum (ward of West Devon), Exbourne (ward of West Devon), Hatherleigh (ward of West Devon), Milton Ford (ward of West Devon), Okehampton South (ward of West Devon), Tamarside (ward of West Devon) and Tavistock South East (ward of West Devon) — these are the West Devon pockets our drawings cover most. Heritage designations here include Bere Alston, Bere Ferrers, Bondleigh, Broadwood-kelly, Buckland Monachorum, Exbourne, Hatherleigh and Lamerton. West Devon Borough Council weighs each proposal against West Devon Borough Council's adopted local plan and its householder design guidance, where the 13,150 homes here are 36% pre-1900, 5% 1983-1992, 5% 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 (36% of 13,150 homes), 1980s estate houses (5%) and 1970s and early-1980s houses (5%).
Heritage designation is the single biggest variable in West Devon, and it is address-specific: Bere Alston (conservation area designated in 1992), Bere Ferrers (conservation area designated in 1979), Bondleigh (conservation area designated in 1995), Broadwood-kelly (conservation area designated in 1993), Buckland Monachorum (conservation area designated in 1977), Exbourne (conservation area designated in 1980), Hatherleigh (conservation area designated in 1973) and Lamerton (conservation area designated in 1993). Inside those boundaries permitted development is curtailed and West Devon 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, West Devon takes in Bere Ferrers, Buckland Monachorum, Exbourne, Hatherleigh, Milton Ford, Okehampton South, Tamarside and Tavistock South East. No Article 4 direction is recorded for West Devon Borough Council, but the district's 8 conservation areas still limit permitted development on those streets.
On stock, West Devon is Victorian and earlier houses (36% of 13,150 homes), 1980s estate houses (5%) and 1970s and early-1980s houses (5%) — 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. West Devon Borough Council decided 130 householder applications in the latest published year and granted 93%, with 62% issued inside the eight-week target. We work from the council's own published record.
The full build-period split for West Devon runs pre-1900 3% (190 homes), 1900-1918 0% (30 homes), 1919-1929 0% (10 homes), 1930-1939 6% (350 homes), 1945-1954 3% (170 homes), 1955-1964 30% (1,850 homes), 1965-1972 33% (1,990 homes), 1973-1982 4% (260 homes), 1983-1992 5% (310 homes), 1993-1999 4% (220 homes) and 2000-2008 3% (170 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.
West Devon Borough Council also decides for Bere Ferrers, Buckland Monachorum, Exbourne, Hatherleigh, Milton Ford, Okehampton South, Tamarside and Tavistock South East, so a decision in West Devon 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.
Published figures for West Devon and West Devon 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 | West Devon |
|---|---|
| Dwellings recorded | 13,150 |
| Built pre-1900 | 190 (3%) |
| Built 1900-1918 | 30 (0%) |
| Built 1919-1929 | 10 (0%) |
| Built 1930-1939 | 350 (6%) |
| Built 1945-1954 | 170 (3%) |
| Built 1955-1964 | 1,850 (30%) |
| Built 1965-1972 | 1,990 (33%) |
| Built 1973-1982 | 260 (4%) |
| Built 1983-1992 | 310 (5%) |
| Built 1993-1999 | 220 (4%) |
| Built 2000-2008 | 170 (3%) |
| Built before 1919 | 37% |
| Built 1919–1939 | 8% |
| Built 1945–2008 | 46% |
| Conservation areas in West Devon | 8 (Bere Alston, Bere Ferrers…) |
| Conservation areas district-wide | 24 |
| Article 4 directions recorded | 0 |
| Householder applications decided | 130 |
| Householder applications granted | 93% |
| Decided within 8 weeks | 62% |
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 West Devon Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
West Devon's roofs set the brief. The borough is built largely from Victorian and earlier houses (36% of 13,150 homes), 1980s estate houses (5%) and 1970s and early-1980s houses (5%), 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 1980s building — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. West Devon Borough Council assesses loft proposals against West Devon Borough Council's adopted local plan and its householder design guidance, 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 West Devon Borough Council can verify them. West Devon contains Bere Alston, Bere Ferrers, Bondleigh conservation areas (Bere Alston designated 1992), 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.
West Devon also carries protected streets — Bere Alston, Bere Ferrers, Bondleigh, Broadwood-kelly, Buckland Monachorum, Exbourne, Hatherleigh and Lamerton among them. No Article 4 direction is recorded for West Devon Borough Council, but the district's 8 conservation areas still limit permitted development on those streets. We check your address against those designations before a line is drawn.
Many West Devon 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 West Devon 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 West Devon 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 West Devon Borough Council's real householder decision record, pulled from official planning statistics and updated as new data lands. West Devon Borough Council granted 93% of 130 householder decisions in the year to 31 March 2026, 62% of them inside eight weeks. 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 Bere Alston, Bere Ferrers and Bondleigh, 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 1980s building, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
The 13,150 homes here are 36% pre-1900, 5% 1983-1992, 5% 1973-1982, 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 West Devon 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 West Devon roofs come up most often:
Loft conversion drawings for Bere Alston's conservation area designated in 1992 — measured, volume-checked and drawn to West Devon Borough Council's guidance.
Loft conversion drawings for Bere Ferrers's conservation area designated in 1979 — measured, volume-checked and drawn to West Devon Borough Council's guidance.
Loft conversion drawings for Bondleigh's conservation area designated in 1995 — measured, volume-checked and drawn to West Devon Borough Council's guidance.
Loft conversion drawings for Broadwood-kelly's conservation area designated in 1993 — measured, volume-checked and drawn to West Devon Borough Council's guidance.
Loft conversion drawings for Buckland Monachorum's conservation area designated in 1977 — measured, volume-checked and drawn to West Devon Borough Council's guidance.
Loft conversion drawings for Exbourne's conservation area designated in 1980 — measured, volume-checked and drawn to West Devon Borough Council's guidance.
The right loft in West Devon 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 West Devon 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 Bere Alston and Bere Ferrers and Article 4 directions can remove permitted-development rights.
A fixed process built around how West Devon Borough Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your West Devon 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 West Devon 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 West Devon Borough Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until West Devon 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 West Devon the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Bere Alston and Bere Ferrers or on streets with an Article 4 direction. West Devon Borough Council is the decision-maker.
Generally no. In conservation areas including Bere Alston and Bere Ferrers, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to West Devon Borough Council. No Article 4 direction is recorded for West Devon Borough Council, but the district's 8 conservation areas still limit permitted development on those streets. We check your exact address before drawing.
On steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, common across West Devon, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is trussed-rafter roofs typical of 1980s 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. West Devon Borough Council is the decision-maker.
A householder planning application in West Devon 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. West Devon Borough Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from West Devon 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.
Every roof is different, so we quote each West Devon project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until West Devon 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.