Dormer, hip-to-gable and mansard loft conversion drawings for Medway homes — prepared to Medway Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Medway Council granted 96% of the householder planning decisions it made in its latest published year — 9 points above the 87% England-wide householder average. Medway contains Cliffe, Frindsbury and Manor Farm, Lower Rainham conservation areas (Cliffe designated 1973), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant 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. Medway carries at least one Article 4 direction, and conservation areas including Cliffe, Frindsbury and Manor Farm and Lower Rainham remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Medway is determined against an 8-week statutory target.
Cliffe (conservation area designated in 1973), Frindsbury and Manor Farm (conservation area designated in 1996), Lower Rainham (conservation area designated in 1989), Lower Twydall (conservation area designated in 1984), Maidstone Road, Chatham (conservation area designated in 2005), Meresborough (conservation area designated in 1989), Moor Street (conservation area designated in 1989), New Road, Chatham (conservation area designated in 1972), All Saints (ward of Medway), Fort Pitt (ward of Medway), Rainham North (ward of Medway), Rainham South East (ward of Medway) and Strood Rural (ward of Medway) — these are the Medway pockets our drawings cover most. Heritage designations here include Cliffe, Frindsbury and Manor Farm, Lower Rainham, Lower Twydall, Maidstone Road, Chatham, Meresborough, Moor Street and New Road, Chatham. Medway Council weighs each proposal against Medway Council's development plan and the design policies it applies to householder applications, where the 24,730 homes here are 18% 1965-1972, 15% 1973-1982, 10% 1955-1964, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow-pitched roofs and integral garages typical of that period's building and shallow trussed roofs typical of 1970s building, over late-1960s and early-1970s houses (18% of 24,730 homes), 1970s and early-1980s houses (15%) and late-1950s and early-1960s houses (10%).
What is permitted in Medway turns on designation first, so that is where we start: Cliffe (conservation area designated in 1973), Frindsbury and Manor Farm (conservation area designated in 1996), Lower Rainham (conservation area designated in 1989), Lower Twydall (conservation area designated in 1984), Maidstone Road, Chatham (conservation area designated in 2005), Meresborough (conservation area designated in 1989), Moor Street (conservation area designated in 1989) and New Road, Chatham (conservation area designated in 1972). Inside those boundaries permitted development is curtailed and Medway 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, Medway takes in All Saints, Fort Pitt, Rainham North, Rainham South East and Strood Rural. Medway Council has 47 recorded Article 4 directions — check the address before assuming PD applies in the district.
On stock, Medway is late-1960s and early-1970s houses (18% of 24,730 homes), 1970s and early-1980s houses (15%) and late-1950s and early-1960s houses (10%) — which is why shallow-pitched roofs and integral garages typical of that period's building and shallow trussed roofs typical of 1970s building govern what a loft or rear projection can realistically be. Medway Council decided 540 householder applications in the latest published year and granted 96%, with 94% issued inside the eight-week target. We draw to that record rather than to a national average.
The full build-period split for Medway runs pre-1900 3% (190 homes), 1900-1918 0% (30 homes), 1919-1929 0% (10 homes), 1930-1939 6% (350 homes), 1945-1954 3% (170 homes), 1955-1964 30% (1,850 homes), 1965-1972 33% (1,990 homes), 1973-1982 4% (260 homes), 1983-1992 5% (310 homes), 1993-1999 4% (220 homes) and 2000-2008 3% (170 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.
Medway Council also decides for All Saints, Fort Pitt, Rainham North, Rainham South East and Strood Rural, so a decision in Medway 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 Brompton Lines(1), Brompton Lines(2), Chatham Central & Brompton and Fort Pitt. 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 Medway and Medway Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Medway |
|---|---|
| Dwellings recorded | 24,730 |
| Built pre-1900 | 190 (3%) |
| Built 1900-1918 | 30 (0%) |
| Built 1919-1929 | 10 (0%) |
| Built 1930-1939 | 350 (6%) |
| Built 1945-1954 | 170 (3%) |
| Built 1955-1964 | 1,850 (30%) |
| Built 1965-1972 | 1,990 (33%) |
| Built 1973-1982 | 260 (4%) |
| Built 1983-1992 | 310 (5%) |
| Built 1993-1999 | 220 (4%) |
| Built 2000-2008 | 170 (3%) |
| Built before 1919 | 13% |
| Built 1919–1939 | 11% |
| Built 1945–2008 | 66% |
| Conservation areas in Medway | 8 (Cliffe, Frindsbury and Manor Farm…) |
| Conservation areas district-wide | 24 |
| Article 4 directions recorded | 47 |
| Householder applications decided | 540 |
| Householder applications granted | 96% |
| Decided within 8 weeks | 94% |
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 Medway Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Medway's roofs set the brief. The borough is built largely from late-1960s and early-1970s houses (18% of 24,730 homes), 1970s and early-1980s houses (15%) and late-1950s and early-1960s houses (10%), and its lofts sit under shallow-pitched roofs and integral garages typical of that period's 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. Medway Council assesses loft proposals against Medway 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 Medway Council can verify them. Medway contains Cliffe, Frindsbury and Manor Farm, Lower Rainham conservation areas (Cliffe designated 1973), 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.
Medway also carries protected streets — Cliffe, Frindsbury and Manor Farm, Lower Rainham, Lower Twydall, Maidstone Road, Chatham, Meresborough, Moor Street and New Road, Chatham among them. Medway Council has 47 recorded Article 4 directions — check the address before assuming PD applies in the district. We check your address against those designations before a line is drawn.
Many Medway 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 Medway Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Medway 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 Medway Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Medway Council granted 96% of 540 householder decisions in the year to 31 March 2026, 94% of them inside eight weeks. 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 Cliffe, Frindsbury and Manor Farm and Lower Rainham, 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 shallow-pitched roofs and integral garages typical of that period's 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 24,730 homes here are 18% 1965-1972, 15% 1973-1982, 10% 1955-1964, 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 Medway 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 Medway roofs come up most often:
Loft conversion drawings for Cliffe's conservation area designated in 1973 — measured, volume-checked and drawn to Medway Council's guidance.
Loft conversion drawings for Frindsbury and Manor Farm's conservation area designated in 1996 — measured, volume-checked and drawn to Medway Council's guidance.
Loft conversion drawings for Lower Rainham's conservation area designated in 1989 — measured, volume-checked and drawn to Medway Council's guidance.
Loft conversion drawings for Lower Twydall's conservation area designated in 1984 — measured, volume-checked and drawn to Medway Council's guidance.
Loft conversion drawings for Maidstone Road, Chatham's conservation area designated in 2005 — measured, volume-checked and drawn to Medway Council's guidance.
Loft conversion drawings for Meresborough's conservation area designated in 1989 — measured, volume-checked and drawn to Medway Council's guidance.
The right loft in Medway 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 Medway 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 Cliffe and Frindsbury and Manor Farm and Article 4 directions can remove permitted-development rights.
A fixed process built around how Medway Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Medway 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 Medway 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 Medway Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Medway 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 Medway the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Cliffe and Frindsbury and Manor Farm or on streets with an Article 4 direction. Medway Council is the decision-maker.
Generally no. In conservation areas including Cliffe and Frindsbury and Manor Farm, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Medway Council. Medway Council has 47 recorded Article 4 directions — check the address before assuming PD applies in the district. We check your exact address before drawing.
On shallow-pitched roofs and integral garages typical of that period's building, common across Medway, 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. Medway Council is the decision-maker.
A householder planning application in Medway 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. Medway Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Medway 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.
Every roof is different, so we quote each Medway project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Medway 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.