Front-porch drawings for Mole Valley homes — checked against the Class D permitted-development limits, drawn to Mole Valley District Council's frontage guidance, delivered in days and revised free until your decision, with a free approval-odds check first.
Mole Valley District Council granted 83% of the householder planning decisions it made in its latest published year — 4 points below the 87% England-wide householder average. Metropolitan Green Belt covers the bulk of the district and the adopted plan releases well under one per cent of it, so countryside development is tightly controlled, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910), interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
The permitted-development ceilings are fixed: 40m³ of new roof volume for a terraced loft and 50m³ for a semi or detached house under Class B, plus a 3m single-storey rear extension on a terrace or 4m on a detached house under Class A. Mole Valley carries at least one Article 4 direction, and conservation areas including Dorking, Leatherhead and Brockham remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Mole Valley is determined against an 8-week statutory target.
Dorking (a historic market town with a Victorian and Edwardian core, a conservation area and an Article 4 direction), Leatherhead (a market town of mixed period and postwar housing with a conservation area and an Article 4 direction), Great Bookham (an affluent commuter village with its own conservation-area character), Fetcham (largely interwar and postwar suburban semis and detached houses near Leatherhead), Brockham (a green-belt village around a classic green with a conservation area and an Article 4 direction) and Westhumble (a small Surrey Hills village of detached rural stock below Box Hill) — these are the Mole Valley pockets our drawings cover most. Heritage designations here include Dorking, Leatherhead, Brockham, Great Bookham and Little Bookham. Mole Valley District Council weighs each proposal against the Mole Valley Local Plan 2020–2039 (adopted October 2024), where the Surrey Hills National Landscape (AONB) covers much of the south and west around Dorking and Box Hill, where landscape scrutiny is heightened. Converted flats appear around Dorking and Leatherhead town centres, and none of them hold householder permitted-development rights.. On roofs the borough is dual-pitch tiled roofs on the town villas and terraces and hipped roofs on the interwar suburban semis, over Victorian and Edwardian terraces and villas in the market towns of Dorking and Leatherhead, interwar and postwar suburban semis and detached houses around the towns, substantial detached housing and period cottages in the green-belt and Surrey Hills villages and larger rural country properties to the south and west.
A porch is the smallest thing most people build and the most visible. It sits on the principal elevation, so Mole Valley District Council reads it against the rhythm of the whole street rather than against your own house alone. Mole Valley is largely Victorian and Edwardian terraces and villas in the market towns of Dorking and Leatherhead, interwar and postwar suburban semis and detached houses around the towns, substantial detached housing and period cottages in the green-belt and Surrey Hills villages and larger rural country properties to the south and west, and where a run of houses shares one front-door detail, a porch that ignores it stands out from fifty metres away.
The three Class D numbers do most of the work: 3 square metres of external floor area, 3 metres of height, and a 2-metre stand-off from any boundary that fronts a highway. That last one catches more porches in Mole Valley than the other two put together, because front gardens are shallow and the boundary is measured to the highway line, not to the kerb. We measure it on site and set the porch inside the limit, or we tell you honestly that it needs an application.
In Mole Valley's conservation areas — Dorking, Leatherhead, Brockham, Great Bookham and Little Bookham among them — a porch is assessed on materials, roof form and how the door surround is treated. Mole Valley has Article 4 directions removing permitted-development rights in the Dorking, Leatherhead and Brockham conservation areas, so that features contributing to their character cannot be altered without consent.
Most modest porches are permitted development. You will need to apply to Mole Valley District Council if any of these apply:
We draw the porch to scale against the three Class D thresholds, show the highway boundary on the block plan, and detail the roof, door surround and threshold so Mole Valley District Council — and your neighbours — can see exactly what will be built.
Below is Mole Valley District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Mole Valley grants a lower share of applications than the national average, with near-total Green Belt coverage and the Surrey Hills AONB the constraints behind most refusals of larger schemes. A porch application turns on frontage design and the highway stand-off, so a pack that dimensions both is decided faster than a sketch.
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 Dorking, Leatherhead and Great Bookham, the porches that go through are the ones that borrow from the house: the same brick or render, a roof pitched to match, and a door and side-light proportioned to the original opening. On victorian and edwardian terraces and villas in the market towns of dorking and leatherhead, an open-sided canopy is often the better answer than an enclosed porch — it stays clear of the floor-area limit and leaves the frontage legible.
Metropolitan Green Belt covers the bulk of the district and the adopted plan releases well under one per cent of it, so countryside development is tightly controlled, which is exactly the sort of local reading a porch has to satisfy. Where the 2-metre highway stand-off cannot be met, we either recess the porch behind the building line or prepare a full householder application with an elevation that shows the porch in the context of its neighbours — the drawing that answers the officer's real question.
We draw porches on every street type in Mole Valley. A few of the areas where porch work comes up most often:
Porch drawings for Dorking — a historic market town with a Victorian and Edwardian core, a conservation area and an Article 4 direction — dimensioned to the Class D limits and drawn to Mole Valley District Council's frontage guidance.
Porch drawings for Leatherhead — a market town of mixed period and postwar housing with a conservation area and an Article 4 direction — dimensioned to the Class D limits and drawn to Mole Valley District Council's frontage guidance.
Porch drawings for Great Bookham — an affluent commuter village with its own conservation-area character — dimensioned to the Class D limits and drawn to Mole Valley District Council's frontage guidance.
Porch drawings for Fetcham — largely interwar and postwar suburban semis and detached houses near Leatherhead — dimensioned to the Class D limits and drawn to Mole Valley District Council's frontage guidance.
Porch drawings for Brockham — a green-belt village around a classic green with a conservation area and an Article 4 direction — dimensioned to the Class D limits and drawn to Mole Valley District Council's frontage guidance.
Porch drawings for Westhumble — a small Surrey Hills village of detached rural stock below Box Hill — dimensioned to the Class D limits and drawn to Mole Valley District Council's frontage guidance.
Class D sets three thresholds. This is how the common cases fall either side of them.
| Porch type | Permitted development? | What decides it | What Mole Valley District Council checks |
|---|---|---|---|
| Open canopy over the door | Usually yes — no enclosed floor area | Whether it is enclosed | Projection, materials, roof form |
| Enclosed porch under 3m² | Yes, if under 3m high and 2m from the highway boundary | External floor area | Highway stand-off, frontage design |
| Enclosed porch over 3m² | No — full application | External floor area | Bulk on the principal elevation |
| Porch in a conservation area | Only if it meets Class D and no Article 4 applies | Designation status | Materials, door detail, streetscape |
| Porch on a listed building | No — listed building consent required | Listing | Impact on special interest |
Thresholds from the Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 1, Class D.
A fixed process built around how Mole Valley District Council validates and decides frontage work — most porch drawings are submission-ready within seven days of survey.
Send us your Mole Valley postcode. We confirm conservation, Article 4 and listing status, measure the front boundary against the 2-metre highway rule, and score your odds against live Mole Valley District Council decisions.
We measure the frontage, threshold level, door opening and the distance to the highway boundary — the four numbers a porch application stands or falls on.
Chartered designers develop the porch to your brief, either inside the Class D limits or as a full application drawn to Mole Valley District Council's design guidance, with materials and roof form matched to the house.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Mole Valley District Council issues its decision.
Usually not, provided it meets all three Class D limits: no more than 3 square metres of external floor area, no more than 3 metres high, and no part within 2 metres of a boundary fronting a highway. Break any one and you need a householder application to Mole Valley District Council. On designated land, and on listed buildings, the position is different and we check it before drawing.
It is the external floor area — measured to the outside face of the porch walls, not the usable space inside. That catches people out, because a porch that feels small internally can exceed 3 square metres once the wall thickness is counted. We measure and dimension it on the plan so the figure is beyond argument at validation. This applies to your Mole Valley address specifically. Mole Valley District Council is the decision-maker.
No part of a permitted-development porch may be within 2 metres of any boundary of the property that fronts a highway. In Mole Valley this is the limit that most often pushes a porch into a full application, because front gardens are shallow. The measurement is to the boundary line, which is not always where the kerb or the fence sits — we establish it on survey. Mole Valley District Council is the decision-maker.
Yes, but the design bar is higher. Class D is not automatically removed in a conservation area, so a compliant porch can still be permitted development — however Mole Valley District Council will expect materials, roof pitch and door detail to respect the area's character, and an Article 4 direction can remove the right entirely. In Dorking and Leatherhead we confirm the position on your specific address first.
A porch is exempt from most building regulations if it is under 30 square metres, at ground level, separated from the house by the existing external door, and any glazing and electrics meet Parts K, N and P. Remove the original front door and the porch becomes part of the heated envelope, at which point insulation and Part L apply. We flag which side of that line your design falls on. This applies to your Mole Valley address specifically. Mole Valley District Council is the decision-maker.
A householder application runs to an eight-week statutory target, and a lawful development certificate to the same. The realistic risk is not the decision but validation — an incomplete pack is returned rather than determined. We prepare the submission validation-complete and handle officer queries so the timetable holds. This applies to your Mole Valley address specifically. Mole Valley District Council is the decision-maker.
We quote each Mole Valley porch individually, because frontage type and boundary position 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 Mole Valley District Council approves. 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.