Dormer, hip-to-gable and mansard loft conversion drawings for Hotham homes — prepared to Arun District Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Arun District Council granted 94% of the householder planning decisions it made in its latest published year — 7 points above the 87% England-wide householder average. Hotham contains the Bognor Regis (Upper Bognor Road and Mead Lane) conservation area (Bognor Regis (Upper Bognor Road and Mead Lane) designated 1993), 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 Edwardian (1901–1910) 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 Bognor Regis (Upper Bognor Road and Mead Lane) those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Hotham is determined against an 8-week statutory target.
Bognor Regis (Upper Bognor Road and Mead Lane) (conservation area designated in 1993) and Bognor Regis (civil parish within Hotham) — these are the Hotham pockets our drawings cover most. Heritage designations here include Bognor Regis (Upper Bognor Road and Mead Lane). Arun District Council weighs each proposal against Arun District Council's development plan and the design policies it applies to householder applications, where the 3,080 homes here are 17% 1983-1992, 14% pre-1900, 14% 1900-1918, which is what sets the realistic roof and rear-projection options. On roofs the borough is trussed-rafter roofs typical of 1980s building and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, over 1980s estate houses (17% of 3,080 homes), Victorian and earlier houses (14%) and Edwardian houses (14%).
What is permitted in Hotham turns on designation first, so that is where we start: Bognor Regis (Upper Bognor Road and Mead Lane) (conservation area designated in 1993). Inside those boundaries permitted development is curtailed and Arun District 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, Hotham takes in Bognor Regis. No Article 4 direction is recorded for Arun District Council, but Hotham's 1 conservation area still limit permitted development on those streets.
On stock, Hotham is 1980s estate houses (17% of 3,080 homes), Victorian and earlier houses (14%) and Edwardian houses (14%) — which is why trussed-rafter roofs typical of 1980s building and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building govern what a loft or rear projection can realistically be. Arun District Council decided 453 householder applications in the latest published year and granted 94%, with 99% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for Hotham runs pre-1900 14% (440 homes), 1900-1918 14% (430 homes), 1919-1929 3% (90 homes), 1930-1939 6% (200 homes), 1945-1954 3% (80 homes), 1955-1964 7% (230 homes), 1965-1972 9% (270 homes), 1973-1982 6% (170 homes), 1983-1992 17% (520 homes), 1993-1999 7% (230 homes) and 2000-2008 7% (220 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.
Arun District Council also decides for Angmering & Findon, Arundel & Walberton, Barnham, Beach, Bersted, East Preston, Marine and Orchard, so a decision in Hotham 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 Hotham and Arun District Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Hotham |
|---|---|
| Dwellings recorded | 3,080 |
| Built pre-1900 | 440 (14%) |
| Built 1900-1918 | 430 (14%) |
| Built 1919-1929 | 90 (3%) |
| Built 1930-1939 | 200 (6%) |
| Built 1945-1954 | 80 (3%) |
| Built 1955-1964 | 230 (7%) |
| Built 1965-1972 | 270 (9%) |
| Built 1973-1982 | 170 (6%) |
| Built 1983-1992 | 520 (17%) |
| Built 1993-1999 | 230 (7%) |
| Built 2000-2008 | 220 (7%) |
| Built before 1919 | 28% |
| Built 1919–1939 | 9% |
| Built 1945–2008 | 56% |
| Conservation areas in Hotham | 1 (Bognor Regis (Upper Bognor Road and Mead Lane)) |
| Conservation areas district-wide | 23 |
| Article 4 directions recorded | 0 |
| Householder applications decided | 453 |
| Householder applications granted | 94% |
| Decided within 8 weeks | 99% |
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 Arun District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Hotham's roofs set the brief. The borough is built largely from 1980s estate houses (17% of 3,080 homes), Victorian and earlier houses (14%) and Edwardian houses (14%), and its lofts sit under trussed-rafter roofs typical of 1980s building and steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Arun District Council assesses loft proposals against Arun District 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 Arun District Council can verify them. Hotham contains the Bognor Regis (Upper Bognor Road and Mead Lane) conservation area (Bognor Regis (Upper Bognor Road and Mead Lane) designated 1993), 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.
Hotham also carries protected streets — Bognor Regis (Upper Bognor Road and Mead Lane) among them. No Article 4 direction is recorded for Arun District Council, but Hotham's 1 conservation area still limit permitted development on those streets. We check your address against those designations before a line is drawn.
Many Hotham 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 Arun District Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Arun District 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 Arun District Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Arun District Council granted 94% of its householder applications in the year to 31 March 2026, and Bognor Regis (Upper Bognor Road and Mead Lane) 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 Bognor Regis (Upper Bognor Road and Mead Lane) and Bognor Regis, 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 1980s building, that is usually the most efficient use of the roof; where the stock is steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
The 3,080 homes here are 17% 1983-1992, 14% pre-1900, 14% 1900-1918, 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 Arun District 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 Hotham roofs come up most often:
Loft conversion drawings for Bognor Regis (Upper Bognor Road and Mead Lane)'s conservation area designated in 1993 — measured, volume-checked and drawn to Arun District Council's guidance.
Loft conversion drawings for Bognor Regis's civil parish within Hotham — measured, volume-checked and drawn to Arun District Council's guidance.
The right loft in Hotham 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 Arun District 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 Bognor Regis (Upper Bognor Road and Mead Lane) and Article 4 directions can remove permitted-development rights.
A fixed process built around how Arun District Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Hotham 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 Arun District 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 Arun District Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Arun District 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 Hotham the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Bognor Regis (Upper Bognor Road and Mead Lane) or on streets with an Article 4 direction. Arun District Council is the decision-maker.
Generally no. In conservation areas including Bognor Regis (Upper Bognor Road and Mead Lane), Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Arun District Council. No Article 4 direction is recorded for Arun District Council, but Hotham's 1 conservation area still limit permitted development on those streets. We check your exact address before drawing.
On trussed-rafter roofs typical of 1980s building, common across Hotham, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 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. Arun District Council is the decision-maker.
A householder planning application in Hotham 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. Arun District Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Arun District 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 Hotham address specifically.
Every roof is different, so we quote each Hotham project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Arun District 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.