Dormer, hip-to-gable and mansard loft conversion drawings for Derby Road West homes — prepared to Erewash Borough Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Erewash Borough Council granted 97% of the householder planning decisions it made in its latest published year — 10 points above the 87% England-wide householder average. Derby Road West contains the Long Eaton (Derby Road) conservation area (Long Eaton (Derby Road) designated 2011), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant interwar (1918–1939) 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 Long Eaton (Derby Road) those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Derby Road West is determined against an 8-week statutory target.
Long Eaton (Derby Road) (conservation area designated in 2011) and Sandiacre (civil parish within Derby Road West) — these are the Derby Road West pockets our drawings cover most. Heritage designations here include Long Eaton (Derby Road). Erewash Borough Council weighs each proposal against Erewash Borough Council's development plan and the design policies it applies to householder applications, where the 3,200 homes here are 20% 1945-1954, 17% 1973-1982, 11% 1930-1939, which is what sets the realistic roof and rear-projection options. On roofs the borough is simple gabled and hipped roofs typical of early postwar building and shallow trussed roofs typical of 1970s building, over early postwar houses (20% of 3,200 homes), 1970s and early-1980s houses (17%) and 1930s semi-detached and detached houses (11%).
What is permitted in Derby Road West turns on designation first, so that is where we start: Long Eaton (Derby Road) (conservation area designated in 2011). Inside those boundaries permitted development is curtailed and Erewash 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, Derby Road West takes in Sandiacre. No Article 4 direction is recorded for Erewash Borough Council, but Derby Road West's 1 conservation area still limit permitted development on those streets.
On stock, Derby Road West is early postwar houses (20% of 3,200 homes), 1970s and early-1980s houses (17%) and 1930s semi-detached and detached houses (11%) — which is why simple gabled and hipped roofs typical of early postwar building and shallow trussed roofs typical of 1970s building govern what a loft or rear projection can realistically be. Erewash Borough Council decided 231 householder applications in the latest published year and granted 97%, with 62% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for Derby Road West runs pre-1900 7% (230 homes), 1900-1918 6% (190 homes), 1919-1929 6% (200 homes), 1930-1939 11% (360 homes), 1945-1954 20% (640 homes), 1955-1964 10% (330 homes), 1965-1972 6% (180 homes), 1973-1982 17% (550 homes), 1983-1992 9% (280 homes), 1993-1999 5% (150 homes) and 2000-2008 1% (40 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.
Erewash Borough Council also decides for Derby Road East, Draycott & Risley, Little Eaton & Stanley, Ockbrook & Borrowash and Sandiacre, so a decision in Derby Road West 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 Derby Road West and Erewash 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 | Derby Road West |
|---|---|
| Dwellings recorded | 3,200 |
| Built pre-1900 | 230 (7%) |
| Built 1900-1918 | 190 (6%) |
| Built 1919-1929 | 200 (6%) |
| Built 1930-1939 | 360 (11%) |
| Built 1945-1954 | 640 (20%) |
| Built 1955-1964 | 330 (10%) |
| Built 1965-1972 | 180 (6%) |
| Built 1973-1982 | 550 (17%) |
| Built 1983-1992 | 280 (9%) |
| Built 1993-1999 | 150 (5%) |
| Built 2000-2008 | 40 (1%) |
| Built before 1919 | 13% |
| Built 1919–1939 | 18% |
| Built 1945–2008 | 68% |
| Conservation areas in Derby Road West | 1 (Long Eaton (Derby Road)) |
| Conservation areas district-wide | 22 |
| Article 4 directions recorded | 0 |
| Householder applications decided | 231 |
| Householder applications granted | 97% |
| 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 Erewash Borough Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Derby Road West's roofs set the brief. The borough is built largely from early postwar houses (20% of 3,200 homes), 1970s and early-1980s houses (17%) and 1930s semi-detached and detached houses (11%), and its lofts sit under simple gabled and hipped roofs typical of early postwar building and shallow trussed roofs typical of 1970s building — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Erewash Borough Council assesses loft proposals against Erewash Borough Council's development plan and the design policies it applies to householder applications, 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 Erewash Borough Council can verify them. Derby Road West contains the Long Eaton (Derby Road) conservation area (Long Eaton (Derby Road) designated 2011), 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.
Derby Road West also carries protected streets — Long Eaton (Derby Road) among them. No Article 4 direction is recorded for Erewash Borough Council, but Derby Road West's 1 conservation area still limit permitted development on those streets. We check your address against those designations before a line is drawn.
Many Derby Road West 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 Erewash 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 Erewash 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 Erewash Borough Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Erewash Borough Council granted 97% of its householder applications in the year to 31 March 2026, and Long Eaton (Derby 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 Long Eaton (Derby Road) and Sandiacre, 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 simple gabled and hipped roofs typical of early postwar building, that is usually the most efficient use of the roof; where the stock is shallow trussed roofs typical of 1970s building, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
The 3,200 homes here are 20% 1945-1954, 17% 1973-1982, 11% 1930-1939, 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 Erewash 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 Derby Road West roofs come up most often:
Loft conversion drawings for Long Eaton (Derby Road)'s conservation area designated in 2011 — measured, volume-checked and drawn to Erewash Borough Council's guidance.
Loft conversion drawings for Sandiacre's civil parish within Derby Road West — measured, volume-checked and drawn to Erewash Borough Council's guidance.
The right loft in Derby Road West 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 Erewash 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 Long Eaton (Derby Road) and Article 4 directions can remove permitted-development rights.
A fixed process built around how Erewash Borough Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Derby Road West 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 Erewash 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 Erewash Borough Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Erewash 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 Derby Road West the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Long Eaton (Derby Road) or on streets with an Article 4 direction. Erewash Borough Council is the decision-maker.
Generally no. In conservation areas including Long Eaton (Derby Road), Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Erewash Borough Council. No Article 4 direction is recorded for Erewash Borough Council, but Derby Road West's 1 conservation area still limit permitted development on those streets. We check your exact address before drawing.
On simple gabled and hipped roofs typical of early postwar building, common across Derby Road West, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is shallow trussed roofs typical of 1970s 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. Erewash Borough Council is the decision-maker.
A householder planning application in Derby Road West 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. Erewash Borough Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Erewash 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 Derby Road West address specifically.
Every roof is different, so we quote each Derby Road West project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Erewash 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.