Rear dormer drawings for Eynesford roofs — the box across the back slope that turns a low attic into a full-height room, drawn to Broadland District Council's guidance and the volume limits, delivered in days and revised free until your decision, with a free approval-odds check first.
Broadland District Council granted 97% of the householder planning decisions it made in its latest published year — 10 points above the 87% England-wide householder average. Eynesford contains Cawston Conservation Area, Foulsham Conservation Area, Heydon conservation areas (Cawston Conservation Area designated 1979), 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.
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. Eynesford carries at least one Article 4 direction, and conservation areas including Cawston Conservation Area, Foulsham Conservation Area and Heydon remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Eynesford is determined against an 8-week statutory target.
Cawston (conservation area designated in 1979), Foulsham (conservation area designated in 1977), Heydon (conservation area designated in 1971), Heydon/Salle (conservation area designated in 1991), Heydon (civil parish within Eynesford), Cawston (civil parish within Eynesford), Foulsham (civil parish within Eynesford), Guestwick (civil parish within Eynesford), Salle (civil parish within Eynesford) and Themelthorpe (civil parish within Eynesford) — these are the Eynesford pockets our drawings cover most. Heritage designations here include Cawston Conservation Area, Foulsham Conservation Area, Heydon and Heydon/Salle Conservation Area. Broadland District Council weighs each proposal against the adopted Broadland local plan and Broadland District Council's design guidance for householder work, where the 1,500 homes here are 33% pre-1900, 10% 1973-1982, 9% 1983-1992, 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 trussed roofs typical of 1970s building, over Victorian and earlier houses (33% of 1,500 homes), 1970s and early-1980s houses (10%) and 1980s estate houses (9%).
What is permitted in Eynesford turns on designation first, so that is where we start: Cawston (conservation area designated in 1979), Foulsham (conservation area designated in 1977), Heydon (conservation area designated in 1971) and Heydon/Salle (conservation area designated in 1991). Inside those boundaries permitted development is curtailed and Broadland 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, Eynesford takes in Heydon, Cawston, Foulsham, Guestwick, Salle and Themelthorpe. Broadland District Council has 28 recorded Article 4 directions — check the address before assuming PD applies in Eynesford.
On stock, Eynesford is Victorian and earlier houses (33% of 1,500 homes), 1970s and early-1980s houses (10%) and 1980s estate houses (9%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow trussed roofs typical of 1970s building govern what a loft or rear projection can realistically be. Broadland District Council decided 470 householder applications in the latest published year and granted 97%, with 68% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for Eynesford runs pre-1900 33% (500 homes), 1900-1918 1% (10 homes), 1919-1929 3% (40 homes), 1930-1939 3% (40 homes), 1945-1954 6% (90 homes), 1955-1964 4% (60 homes), 1965-1972 8% (120 homes), 1973-1982 10% (150 homes), 1983-1992 9% (140 homes), 1993-1999 7% (100 homes) and 2000-2008 7% (110 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.
Broadland District Council also decides for Aylsham, Hellesdon North West, Marshes, Plumstead, Wroxham and Coltishall, so a decision in Eynesford 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 Area centred on the Market Place, Broads Authoriity Holly Lodge, Broads Authority and Broads Authority Conservation Area. 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 Eynesford and Broadland 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 | Eynesford |
|---|---|
| Dwellings recorded | 1,500 |
| Built pre-1900 | 500 (33%) |
| Built 1900-1918 | 10 (1%) |
| Built 1919-1929 | 40 (3%) |
| Built 1930-1939 | 40 (3%) |
| Built 1945-1954 | 90 (6%) |
| Built 1955-1964 | 60 (4%) |
| Built 1965-1972 | 120 (8%) |
| Built 1973-1982 | 150 (10%) |
| Built 1983-1992 | 140 (9%) |
| Built 1993-1999 | 100 (7%) |
| Built 2000-2008 | 110 (7%) |
| Built before 1919 | 34% |
| Built 1919–1939 | 5% |
| Built 1945–2008 | 51% |
| Conservation areas in Eynesford | 4 (Cawston Conservation Area, Foulsham Conservation Area…) |
| Conservation areas district-wide | 31 |
| Article 4 directions recorded | 28 |
| Householder applications decided | 470 |
| Householder applications granted | 97% |
| Decided within 8 weeks | 68% |
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 Broadland District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
The box dormer is the workhorse loft, and most of Eynesford is built for it — the borough runs to Victorian and earlier houses (33% of 1,500 homes), 1970s and early-1980s houses (10%) and 1980s estate houses (9%) under steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow trussed roofs typical of 1970s building, and a flat-roofed box across the rear slope is the cheapest cubic metre of full-height space those roofs give up. Broadland District Council tests the dormer against the adopted Broadland local plan and Broadland District Council's design guidance for householder work, and because permitted development turns on a number, the volume you propose against the volume you have left is the first thing an officer or a certificate checks.
That is why the arithmetic goes on the drawings. We calculate the box against the 40- or 50-cubic-metre allowance, count any earlier roof enlargement into the total, hold the flat roof below the ridge and set the face back off the eaves so the dormer reads as subordinate. Eynesford contains Cawston Conservation Area, Foulsham Conservation Area, Heydon conservation areas (Cawston Conservation Area designated 1979), so materials, fenestration and roof form are assessed against the appraisal, so the cheeks, the window line and the material are drawn to answer it rather than invite a query.
Where Eynesford's streets are protected — Cawston Conservation Area, Foulsham Conservation Area, Heydon and Heydon/Salle Conservation Area among them — the Class B dormer right is switched off and even a modest rear box needs consent. Broadland District Council has 28 recorded Article 4 directions — check the address before assuming PD applies in Eynesford. We confirm the designation before the box is sized.
Many rear dormers in Eynesford are permitted development, but the volume and position decide it. You will normally need a full application to Broadland District Council if any of these apply:
We draw the box within its volume allowance, the flat roof below the ridge and the face set back off the eaves — the three things a dormer stands or falls on — and submit a validation-complete pack, whether that is a lawful development certificate or a full householder application.
Below is Broadland District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Broadland District Council granted 97% of its householder applications in the year to 31 March 2026, and Cawston Conservation Area shapes what is approved here. A dormer is decided on volume and set-back, so a pack that shows the calculation and the eaves detail is cleared faster and refused less often than a DIY submission.
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 Cawston, Foulsham and Heydon, the dormer that goes through is the subordinate rear box: flat roof kept low, cheeks clad to recede, side windows obscure-glazed against overlooking, and the whole thing set back so the original eaves line still reads from the garden. On steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building, this returns a full-height double and en-suite from what was standing-room-only, usually inside the permitted-development volume.
The 1,500 homes here are 33% pre-1900, 10% 1973-1982, 9% 1983-1992, which is what sets the realistic roof and rear-projection options. We keep the box off the ridge, match the cheek material to the roof, and where the volume is already spent — or the street is designated — draw the dormer as a householder application composed to Broadland District Council's roof-alteration guidance rather than push a certificate that would be refused.
We draw rear dormers on the terraced and semi-detached streets across the borough. A few of the neighbourhoods where Eynesford dormers come up most often:
Dormer loft drawings for Cawston's conservation area designated in 1979 — volume-checked, set-back-detailed and drawn to Broadland District Council's guidance.
Dormer loft drawings for Foulsham's conservation area designated in 1977 — volume-checked, set-back-detailed and drawn to Broadland District Council's guidance.
Dormer loft drawings for Heydon's conservation area designated in 1971 — volume-checked, set-back-detailed and drawn to Broadland District Council's guidance.
Dormer loft drawings for Heydon/Salle's conservation area designated in 1991 — volume-checked, set-back-detailed and drawn to Broadland District Council's guidance.
Dormer loft drawings for Heydon's civil parish within Eynesford — volume-checked, set-back-detailed and drawn to Broadland District Council's guidance.
Dormer loft drawings for Cawston's civil parish within Eynesford — volume-checked, set-back-detailed and drawn to Broadland District Council's guidance.
Whether a dormer in Eynesford needs permission comes down to where it sits and how big the box is. This is how the cases compare.
| Dormer type | Permitted development? | What it gains | What Broadland District Council checks |
|---|---|---|---|
| Rear box, within volume | Usually yes | Full-height room across the back | Volume total, 20cm eaves set-back |
| Rear box, over volume limit | No — full application | A larger room | How far over the allowance, bulk |
| Front or side dormer | No — full application | Light to the front rooms | Visibility from the street, character |
| Dormer in a conservation area | No — full application | Same space, extra scrutiny | Roof form and street appearance |
In conservation areas such as Cawston Conservation Area and Foulsham Conservation Area, Class B dormer rights are removed and every dormer needs a full application.
A fixed process built around how Broadland District Council validates and decides dormer applications — most drawings are submission-ready within seven days of survey.
Send us your Eynesford postcode and roof type. We confirm your conservation and Article 4 status, work out how much permitted-development volume you have left, and score your odds against live Broadland District Council decisions.
We measure ridge and eaves heights, roof pitch and the existing loft floor — the numbers the volume calculation, the set-back and the head heights depend on.
Chartered designers develop the box to your brief, drawn inside the Class B volume limits or, where those are exhausted or removed, to Broadland District Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Broadland District Council issues its decision.
Often not. A rear box dormer within 40 cubic metres on a terrace, or 50 on a semi or detached house, set back at least 20 centimetres from the eaves and kept below the ridge, is usually permitted development. In Eynesford you will need a full application to Broadland District Council for a front or side dormer, a box that exceeds the volume, and any dormer in a conservation area such as Cawston Conservation Area and Foulsham Conservation Area, where those rights are removed.
The permitted-development limit is a volume, not a footprint: 40 cubic metres of added roof space on a terraced house and 50 on a semi-detached or detached one, and any earlier loft enlargement counts against that total. In Eynesford the box must also sit below the ridge and back from the eaves. We measure your roof and calculate the exact volume you have left before drawing. Broadland District Council is the decision-maker.
Not under permitted development. A dormer on the front roof slope, or one facing a highway, always needs a full application to Broadland District Council, because it changes how the house reads from the street. Rear box dormers are far more likely to be approved — or to be permitted development outright — which is why almost every Eynesford dormer we draw sits on the back slope.
Often, on a terrace or semi. If the dormer or the loft steelwork meets the party wall with your neighbour, the Party Wall etc. Act applies and notice must be served before work starts — separately from Broadland District Council's planning decision. We flag the party-wall junction on the drawings so a surveyor can be appointed early and the build is not held up. This applies to your Eynesford address specifically.
If your dormer is permitted development, a lawful development certificate from Broadland District Council is council-stamped proof of it — worth holding, because a buyer's solicitor will ask for it when you sell. We prepare and submit the certificate with the same measured drawing pack that shows the box within its volume allowance. This applies to your Eynesford address specifically.
We price each Eynesford dormer individually, because the roof pitch and the volume left vary house to house, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until Broadland District Council approves, and we confirm at the outset whether your box is permitted development or needs an application. Call 020 7864 7245 to start.
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