Dormer, hip-to-gable and mansard loft conversion drawings for St Mary's homes — prepared to East Riding of Yorkshire Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
East Riding of Yorkshire Council granted 92% of the householder planning decisions it made in its latest published year — 5 points above the 87% England-wide householder average. St Mary's contains Beverley Grosvenor Place, Beverley Markets Area, Beverley North Bar Within conservation areas (Beverley Grosvenor Place designated 1994), 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. St Mary's carries at least one Article 4 direction, and conservation areas including Beverley Grosvenor Place, Beverley Markets Area and Beverley North Bar Within remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in St Mary's is determined against an 8-week statutory target.
Beverley Grosvenor Place (conservation area designated in 1994), Beverley Markets Area (conservation area designated in 2013), Beverley North Bar Within (conservation area designated in 2013), Beverley North Bar Without (conservation area designated in 2013), Beverley Norwood Area (conservation area designated in 2013), Beverley Westwood Area (conservation area designated in 2013), Molescroft (civil parish within St Mary's) and Beverley (civil parish within St Mary's) — these are the St Mary's pockets our drawings cover most. Heritage designations here include Beverley Grosvenor Place, Beverley Markets Area, Beverley North Bar Within, Beverley North Bar Without, Beverley Norwood Area and Beverley Westwood Area. East Riding of Yorkshire Council weighs each proposal against the adopted East Riding of Yorkshire local plan and East Riding of Yorkshire Council's design guidance for householder work, where the 7,830 homes here are 18% 1993-1999, 15% 1955-1964, 13% pre-1900, which is what sets the realistic roof and rear-projection options. On roofs the borough is trussed-rafter roofs typical of 1990s building and shallow gabled roofs typical of that period's building, over 1990s estate houses (18% of 7,830 homes), late-1950s and early-1960s houses (15%) and Victorian and earlier houses (13%).
What is permitted in St Mary's turns on designation first, so that is where we start: Beverley Grosvenor Place (conservation area designated in 1994), Beverley Markets Area (conservation area designated in 2013), Beverley North Bar Within (conservation area designated in 2013), Beverley North Bar Without (conservation area designated in 2013), Beverley Norwood Area (conservation area designated in 2013) and Beverley Westwood Area (conservation area designated in 2013). Inside those boundaries permitted development is curtailed and East Riding of Yorkshire 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, St Mary's takes in Molescroft and Beverley. East Riding of Yorkshire Council has 11 recorded Article 4 directions, removing permitted development for rear and side extensions — check the address before assuming PD applies in St Mary's.
On stock, St Mary's is 1990s estate houses (18% of 7,830 homes), late-1950s and early-1960s houses (15%) and Victorian and earlier houses (13%) — which is why trussed-rafter roofs typical of 1990s building and shallow gabled roofs typical of that period's building govern what a loft or rear projection can realistically be. East Riding of Yorkshire Council decided 830 householder applications in the latest published year and granted 92%, with 95% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for St Mary's runs pre-1900 13% (1,040 homes), 1900-1918 2% (140 homes), 1919-1929 2% (130 homes), 1930-1939 6% (490 homes), 1945-1954 4% (320 homes), 1955-1964 15% (1,180 homes), 1965-1972 11% (830 homes), 1973-1982 9% (730 homes), 1983-1992 9% (700 homes), 1993-1999 18% (1,390 homes) and 2000-2008 4% (300 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.
East Riding of Yorkshire Council also decides for Beverley Rural, Bridlington North, Bridlington South, Dale, Driffield and Rural, East Wolds and Coastal, Goole South and Hessle, so a decision in St Mary's 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 Alpine Villa (Beck Cottage), Atwick, Atwick Hall, Atwick, Clifton House, Atwick and Green View, Atwick. 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 St Mary's and East Riding of Yorkshire Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | St Mary's |
|---|---|
| Dwellings recorded | 7,830 |
| Built pre-1900 | 1,040 (13%) |
| Built 1900-1918 | 140 (2%) |
| Built 1919-1929 | 130 (2%) |
| Built 1930-1939 | 490 (6%) |
| Built 1945-1954 | 320 (4%) |
| Built 1955-1964 | 1,180 (15%) |
| Built 1965-1972 | 830 (11%) |
| Built 1973-1982 | 730 (9%) |
| Built 1983-1992 | 700 (9%) |
| Built 1993-1999 | 1,390 (18%) |
| Built 2000-2008 | 300 (4%) |
| Built before 1919 | 15% |
| Built 1919–1939 | 8% |
| Built 1945–2008 | 70% |
| Conservation areas in St Mary's | 6 (Beverley Grosvenor Place, Beverley Markets Area…) |
| Conservation areas district-wide | 126 |
| Article 4 directions recorded | 11 |
| Householder applications decided | 830 |
| Householder applications granted | 92% |
| Decided within 8 weeks | 95% |
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 East Riding of Yorkshire Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
St Mary's's roofs set the brief. The borough is built largely from 1990s estate houses (18% of 7,830 homes), late-1950s and early-1960s houses (15%) and Victorian and earlier houses (13%), and its lofts sit under trussed-rafter roofs typical of 1990s 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. East Riding of Yorkshire Council assesses loft proposals against the adopted East Riding of Yorkshire local plan and East Riding of Yorkshire 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 East Riding of Yorkshire Council can verify them. St Mary's contains Beverley Grosvenor Place, Beverley Markets Area, Beverley North Bar Within conservation areas (Beverley Grosvenor Place designated 1994), 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.
St Mary's also carries protected streets — Beverley Grosvenor Place, Beverley Markets Area, Beverley North Bar Within, Beverley North Bar Without, Beverley Norwood Area and Beverley Westwood Area among them. East Riding of Yorkshire Council has 11 recorded Article 4 directions, removing permitted development for rear and side extensions — check the address before assuming PD applies in St Mary's. We check your address against those designations before a line is drawn.
Many St Mary's 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 East Riding of Yorkshire Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships East Riding of Yorkshire 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 East Riding of Yorkshire Council's real householder decision record, pulled from official planning statistics and updated as new data lands. East Riding of Yorkshire Council granted 92% of its householder applications in the year to 31 March 2026, and Beverley Grosvenor Place 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 Beverley Grosvenor Place, Beverley Markets Area and Beverley North Bar Within, 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 trussed-rafter roofs typical of 1990s 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 7,830 homes here are 18% 1993-1999, 15% 1955-1964, 13% pre-1900, 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 East Riding of Yorkshire 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 St Mary's roofs come up most often:
Loft conversion drawings for Beverley Grosvenor Place's conservation area designated in 1994 — measured, volume-checked and drawn to East Riding of Yorkshire Council's guidance.
Loft conversion drawings for Beverley Markets Area's conservation area designated in 2013 — measured, volume-checked and drawn to East Riding of Yorkshire Council's guidance.
Loft conversion drawings for Beverley North Bar Within's conservation area designated in 2013 — measured, volume-checked and drawn to East Riding of Yorkshire Council's guidance.
Loft conversion drawings for Beverley North Bar Without's conservation area designated in 2013 — measured, volume-checked and drawn to East Riding of Yorkshire Council's guidance.
Loft conversion drawings for Beverley Norwood Area's conservation area designated in 2013 — measured, volume-checked and drawn to East Riding of Yorkshire Council's guidance.
Loft conversion drawings for Beverley Westwood Area's conservation area designated in 2013 — measured, volume-checked and drawn to East Riding of Yorkshire Council's guidance.
The right loft in St Mary's 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 East Riding of Yorkshire 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 Beverley Grosvenor Place and Beverley Markets Area and Article 4 directions can remove permitted-development rights.
A fixed process built around how East Riding of Yorkshire Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your St Mary's 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 East Riding of Yorkshire 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 East Riding of Yorkshire Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until East Riding of Yorkshire 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 St Mary's the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Beverley Grosvenor Place and Beverley Markets Area or on streets with an Article 4 direction. East Riding of Yorkshire Council is the decision-maker.
Generally no. In conservation areas including Beverley Grosvenor Place and Beverley Markets Area, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to East Riding of Yorkshire Council. East Riding of Yorkshire Council has 11 recorded Article 4 directions, removing permitted development for rear and side extensions — check the address before assuming PD applies in St Mary's. We check your exact address before drawing.
On trussed-rafter roofs typical of 1990s building, common across St Mary's, 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. East Riding of Yorkshire Council is the decision-maker.
A householder planning application in St Mary's 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. East Riding of Yorkshire Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from East Riding of Yorkshire 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 St Mary's address specifically.
Every roof is different, so we quote each St Mary's project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until East Riding of Yorkshire 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.