Dormer, hip-to-gable and mansard loft conversion drawings for Katesgrove homes — prepared to Reading Borough Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Reading Borough Council granted 87% of the householder planning decisions it made in its latest published year — level with the 87% England-wide householder average. The HMO Article 4 direction means a change of use is normally refused where HMOs already exceed 25 per cent within 50 metres, 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. Katesgrove carries at least one Article 4 direction, and conservation areas including Kendrick, South Park and Downshire Square remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Katesgrove is determined against an 8-week statutory target.
Katesgrove Hill (steep Victorian terraces between Southampton Street and Elgar Road), Silver Street (dense red-brick terraces near the town-centre edge), Elgar Road (Victorian streets running down toward the Kennet), Kendrick (substantial Victorian villas in the Kendrick conservation area), South Park (terraces around the South Park conservation area) and Mount Pleasant (terraced streets on the higher ground south of the centre) — these are the Katesgrove pockets our drawings cover most. Heritage designations here include Kendrick, South Park and Downshire Square. Reading Borough Council weighs each proposal against the Reading Borough Local Plan (2019), where the loss of family terraces to further flat or HMO conversion is resisted across the ward. Many Katesgrove terraces are already split into flats and HMOs, which carry no householder permitted-development rights.. On roofs the borough is pitched and gabled roofs on the hillside terraces and valley roofs behind the larger Victorian houses, over Victorian red-brick terraces climbing Katesgrove Hill, converted flats and HMOs on the terraced streets and larger Victorian houses toward Kendrick and South Park.
Katesgrove's roofs set the brief. The borough is built largely from Victorian red-brick terraces climbing Katesgrove Hill, converted flats and HMOs on the terraced streets and larger Victorian houses toward Kendrick and South Park, and its lofts sit under pitched and gabled roofs on the hillside terraces and valley roofs behind the larger Victorian houses — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Reading Borough Council assesses loft proposals against the Reading Borough Local Plan (2019), 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 Reading Borough Council can verify them. The HMO Article 4 direction means a change of use is normally refused where HMOs already exceed 25 per cent within 50 metres, so we resolve it on the page rather than leave it for the case officer to raise.
Katesgrove also carries protected streets — Kendrick, South Park and Downshire Square among them. Katesgrove ward is one of the three areas — with Park and Redlands — covered by Reading's HMO Article 4 direction, so changing a house to a small HMO here needs a planning application rather than relying on permitted-development rights. We check your address against those designations before a line is drawn.
Many Katesgrove 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 Reading Borough Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Reading Borough 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 Reading Borough Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Katesgrove approves most householder schemes, but as an Article 4 ward of tightly packed hillside terraces the balance between family houses and HMOs is what drives its harder decisions. 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 Katesgrove Hill, Silver Street and Elgar Road, 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 pitched and gabled roofs on the hillside terraces, that is usually the most efficient use of the roof; where the stock is valley roofs behind the larger Victorian houses, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
The loss of family terraces to further flat or HMO conversion is resisted across the ward. 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 Reading Borough 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 Katesgrove roofs come up most often:
Loft conversion drawings for Katesgrove Hill's steep Victorian terraces between Southampton Street and Elgar Road — measured, volume-checked and drawn to Reading Borough Council's guidance.
Loft conversion drawings for Silver Street's dense red-brick terraces near the town-centre edge — measured, volume-checked and drawn to Reading Borough Council's guidance.
Loft conversion drawings for Elgar Road's Victorian streets running down toward the Kennet — measured, volume-checked and drawn to Reading Borough Council's guidance.
Loft conversion drawings for Kendrick's substantial Victorian villas in the Kendrick conservation area — measured, volume-checked and drawn to Reading Borough Council's guidance.
Loft conversion drawings for South Park's terraces around the South Park conservation area — measured, volume-checked and drawn to Reading Borough Council's guidance.
Loft conversion drawings for Mount Pleasant's terraced streets on the higher ground south of the centre — measured, volume-checked and drawn to Reading Borough Council's guidance.
The right loft in Katesgrove 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 Reading Borough 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 Kendrick and South Park and Article 4 directions can remove permitted-development rights.
A fixed process built around how Reading Borough Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Katesgrove 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 Reading Borough 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 Reading Borough Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Reading Borough 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 Katesgrove the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Kendrick and South Park or on streets with an Article 4 direction. Reading Borough Council is the decision-maker.
Generally no. In conservation areas including Kendrick and South Park, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Reading Borough Council. Katesgrove ward is one of the three areas — with Park and Redlands — covered by Reading's HMO Article 4 direction, so changing a house to a small HMO here needs a planning application rather than relying on permitted-development rights. We check your exact address before drawing.
On pitched and gabled roofs on the hillside terraces, common across Katesgrove, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is valley roofs behind the larger Victorian houses, 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. Reading Borough Council is the decision-maker.
A householder planning application in Katesgrove 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. Reading Borough Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Reading Borough 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 Katesgrove address specifically.
Every roof is different, so we quote each Katesgrove project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Reading Borough 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.