Dormer, hip-to-gable and mansard loft conversion drawings for Ercall Magna homes — prepared to Telford & Wrekin Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Telford & Wrekin Council granted 91% of the householder planning decisions it made in its latest published year — 4 points above the 87% England-wide householder average. Ercall Magna contains the High Ercall conservation area, 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.
Under Class B, a rear dormer stays permitted development up to 40m³ of added roof volume on a terrace or 50m³ on a semi-detached or detached house, while Class A allows a single-storey rear extension of 3m beyond the original rear wall on a terrace and 4m on a detached house before a full application is needed. In conservation areas such as High Ercall those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Ercall Magna is determined against an 8-week statutory target.
High Ercall (designated conservation area), Eyton Upon The Weald Moors (civil parish within Ercall Magna), Hadley & Leegomery (civil parish within Ercall Magna), Kynnersley (civil parish within Ercall Magna), Preston Upon The Weald Moors (civil parish within Ercall Magna) and Waters Upton (civil parish within Ercall Magna) — these are the Ercall Magna pockets our drawings cover most. Heritage designations here include High Ercall. Telford & Wrekin Council weighs each proposal against Telford & Wrekin Council's adopted local plan and its householder design guidance, where the 1,540 homes here are 28% pre-1900, 9% 1965-1972, 8% 1955-1964, 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-pitched roofs and integral garages typical of that period's building, over Victorian and earlier houses (28% of 1,540 homes), late-1960s and early-1970s houses (9%) and late-1950s and early-1960s houses (8%).
Ercall Magna's designated heritage is specific, and it is the first thing we check against your address: High Ercall (designated conservation area). Inside those boundaries permitted development is curtailed and Telford & Wrekin 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, Ercall Magna takes in Eyton Upon The Weald Moors, Hadley & Leegomery, Kynnersley, Preston Upon The Weald Moors and Waters Upton. No Article 4 direction is recorded for Telford & Wrekin Council, but Ercall Magna's 1 conservation area still limit permitted development on those streets.
On stock, Ercall Magna is Victorian and earlier houses (28% of 1,540 homes), late-1960s and early-1970s houses (9%) and late-1950s and early-1960s houses (8%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow-pitched roofs and integral garages typical of that period's building govern what a loft or rear projection can realistically be. Telford & Wrekin Council decided 277 householder applications in the latest published year and granted 91%, with 96% issued inside the eight-week target. Those are the numbers our drawings are prepared against.
The full build-period split for Ercall Magna runs pre-1900 28% (430 homes), 1900-1918 1% (20 homes), 1919-1929 2% (30 homes), 1930-1939 4% (60 homes), 1945-1954 6% (100 homes), 1955-1964 8% (120 homes), 1965-1972 9% (140 homes), 1973-1982 7% (110 homes), 1983-1992 1% (10 homes), 1993-1999 4% (60 homes) and 2000-2008 5% (80 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.
Telford & Wrekin Council also decides for Edgmond, Horsehay & Lightmoor, Ironbridge Gorge and Wrockwardine, so a decision in Ercall Magna 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 Ercall Magna and Telford & Wrekin Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Ercall Magna |
|---|---|
| Dwellings recorded | 1,540 |
| Built pre-1900 | 430 (28%) |
| Built 1900-1918 | 20 (1%) |
| Built 1919-1929 | 30 (2%) |
| Built 1930-1939 | 60 (4%) |
| Built 1945-1954 | 100 (6%) |
| Built 1955-1964 | 120 (8%) |
| Built 1965-1972 | 140 (9%) |
| Built 1973-1982 | 110 (7%) |
| Built 1983-1992 | 10 (1%) |
| Built 1993-1999 | 60 (4%) |
| Built 2000-2008 | 80 (5%) |
| Built before 1919 | 29% |
| Built 1919–1939 | 6% |
| Built 1945–2008 | 40% |
| Conservation areas in Ercall Magna | 1 (High Ercall) |
| Conservation areas district-wide | 8 |
| Article 4 directions recorded | 0 |
| Householder applications decided | 277 |
| Householder applications granted | 91% |
| Decided within 8 weeks | 96% |
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 Telford & Wrekin Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Ercall Magna's roofs set the brief. The borough is built largely from Victorian and earlier houses (28% of 1,540 homes), late-1960s and early-1970s houses (9%) and late-1950s and early-1960s houses (8%), and its lofts sit under steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow-pitched roofs and integral garages 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. Telford & Wrekin Council assesses loft proposals against Telford & Wrekin 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 Telford & Wrekin Council can verify them. Ercall Magna contains the High Ercall conservation area, 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.
Ercall Magna also carries protected streets — High Ercall among them. No Article 4 direction is recorded for Telford & Wrekin Council, but Ercall Magna's 1 conservation area still limit permitted development on those streets. We check your address against those designations before a line is drawn.
Many Ercall Magna 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 Telford & Wrekin Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Telford & Wrekin 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 Telford & Wrekin Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Telford & Wrekin Council granted 91% of its householder applications in the year to 31 March 2026, and High Ercall 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 High Ercall, Eyton Upon The Weald Moors and Hadley & Leegomery, 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-pitched roofs and integral garages 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 1,540 homes here are 28% pre-1900, 9% 1965-1972, 8% 1955-1964, 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 Telford & Wrekin 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 Ercall Magna roofs come up most often:
Loft conversion drawings for High Ercall's designated conservation area — measured, volume-checked and drawn to Telford & Wrekin Council's guidance.
Loft conversion drawings for Eyton Upon The Weald Moors's civil parish within Ercall Magna — measured, volume-checked and drawn to Telford & Wrekin Council's guidance.
Loft conversion drawings for Hadley & Leegomery's civil parish within Ercall Magna — measured, volume-checked and drawn to Telford & Wrekin Council's guidance.
Loft conversion drawings for Kynnersley's civil parish within Ercall Magna — measured, volume-checked and drawn to Telford & Wrekin Council's guidance.
Loft conversion drawings for Preston Upon The Weald Moors's civil parish within Ercall Magna — measured, volume-checked and drawn to Telford & Wrekin Council's guidance.
Loft conversion drawings for Waters Upton's civil parish within Ercall Magna — measured, volume-checked and drawn to Telford & Wrekin Council's guidance.
The right loft in Ercall Magna 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 Telford & Wrekin 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 High Ercall and Article 4 directions can remove permitted-development rights.
A fixed process built around how Telford & Wrekin Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Ercall Magna 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 Telford & Wrekin 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 Telford & Wrekin Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Telford & Wrekin 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 Ercall Magna the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as High Ercall or on streets with an Article 4 direction. Telford & Wrekin Council is the decision-maker.
Generally no. In conservation areas including High Ercall, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Telford & Wrekin Council. No Article 4 direction is recorded for Telford & Wrekin Council, but Ercall Magna's 1 conservation area 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 Ercall Magna, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is shallow-pitched roofs and integral garages 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. Telford & Wrekin Council is the decision-maker.
A householder planning application in Ercall Magna 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. Telford & Wrekin Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Telford & Wrekin 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 Ercall Magna address specifically.
Every roof is different, so we quote each Ercall Magna project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Telford & Wrekin 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.