Dormer, hip-to-gable and mansard loft conversion drawings for Tower Hamlets homes — prepared to Tower Hamlets Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Tower Hamlets Council granted 92.1% of the householder planning decisions it made in its latest published year — 1.7999999999999972 points above the 90.3% England-wide householder average. Georgian frontages in Spitalfields are treated as near-untouchable, pushing any addition to the rear and out of public view, which is where a policy-literate drawing pack earns its keep. Its dominant Georgian (1714–1837), Victorian (1837–1901) and postwar (1945–1970) housing stock sets the design brief on most streets.
Under Class B, a rear dormer stays permitted development up to 40m³ of added roof volume on a terrace or 50m³ on a semi-detached or detached house, while Class A allows a single-storey rear extension of 3m beyond the original rear wall on a terrace and 4m on a detached house before a full application is needed. Tower Hamlets carries at least one Article 4 direction, and conservation areas including Fournier Street, Elder Street and Narrow Street remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Tower Hamlets is determined against an 8-week statutory target.
Spitalfields (early-Georgian silk-weavers' houses under strict conservation control), Bow (Victorian terraces around the Bow conservation area), Limehouse (riverside warehouse conversions along Narrow Street), Poplar (mixed Victorian terraces and postwar estates), Bethnal Green (dense Victorian terraces and former industrial buildings) and Mile End (Victorian terraces facing Mile End Park) — these are the Tower Hamlets pockets our drawings cover most. Heritage designations here include Fournier Street, Elder Street, Narrow Street, Victoria Park and Bow. Tower Hamlets Council weighs each proposal against Tower Hamlets Local Plan 2031 and the borough's Residential Alterations and Extensions guidance, where dense back-land plots make daylight, overlooking and outlook the decisive tests on rear projections. Much of the borough is flatted — split houses, ex-industrial units and dock conversions — so most homes here have no householder permitted-development rights.. On roofs the borough is parapet-hidden butterfly roofs on the Georgian terraces and pitched roofs on the Victorian stock, over Georgian merchant terraces around Spitalfields, Victorian terraces across Bow and Poplar and warehouse and dock conversions.
Tower Hamlets's roofs set the brief. The borough is built largely from Georgian merchant terraces around Spitalfields, Victorian terraces across Bow and Poplar and warehouse and dock conversions, and its lofts sit under parapet-hidden butterfly roofs on the Georgian terraces and pitched roofs on the Victorian stock — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Tower Hamlets Council assesses loft proposals against Tower Hamlets Local Plan 2031 and the borough's Residential Alterations and Extensions guidance, 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 Tower Hamlets Council can verify them. Georgian frontages in Spitalfields are treated as near-untouchable, pushing any addition to the rear and out of public view, so we resolve it on the page rather than leave it for the case officer to raise.
Tower Hamlets also carries protected streets — Fournier Street, Elder Street, Narrow Street, Victoria Park and Bow among them. The Spitalfields conservation areas around Fournier Street and Elder Street carry some of the tightest heritage controls in London, with Article 4 directions removing permitted-development rights on their early-Georgian frontages. We check your address against those designations before a line is drawn.
Many Tower Hamlets 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 Tower Hamlets Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Tower Hamlets 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 Tower Hamlets Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Tower Hamlets grants most householder applications, yet the exceptional heritage sensitivity of its Georgian quarters is the constraint that governs design more than anything else. 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, rolling year). 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 Spitalfields, Bow and Limehouse, 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 parapet-hidden butterfly roofs on the Georgian terraces, that is usually the most efficient use of the roof; where the stock is pitched roofs on the Victorian stock, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
Dense back-land plots make daylight, overlooking and outlook the decisive tests on rear projections. 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 Tower Hamlets 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 Tower Hamlets roofs come up most often:
Loft conversion drawings for Spitalfields's early-Georgian silk-weavers' houses under strict conservation control — measured, volume-checked and drawn to Tower Hamlets Council's guidance.
Loft conversion drawings for Bow's Victorian terraces around the Bow conservation area — measured, volume-checked and drawn to Tower Hamlets Council's guidance.
Loft conversion drawings for Limehouse's riverside warehouse conversions along Narrow Street — measured, volume-checked and drawn to Tower Hamlets Council's guidance.
Loft conversion drawings for Poplar's mixed Victorian terraces and postwar estates — measured, volume-checked and drawn to Tower Hamlets Council's guidance.
Loft conversion drawings for Bethnal Green's dense Victorian terraces and former industrial buildings — measured, volume-checked and drawn to Tower Hamlets Council's guidance.
Loft conversion drawings for Mile End's Victorian terraces facing Mile End Park — measured, volume-checked and drawn to Tower Hamlets Council's guidance.
The right loft in Tower Hamlets 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 Tower Hamlets 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 Fournier Street and Elder Street and Article 4 directions can remove permitted-development rights.
A fixed process built around how Tower Hamlets Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Tower Hamlets 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 Tower Hamlets 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 Tower Hamlets Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Tower Hamlets 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 Tower Hamlets the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Fournier Street and Elder Street or on streets with an Article 4 direction. Tower Hamlets Council is the decision-maker.
Generally no. In conservation areas including Fournier Street and Elder Street, Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Tower Hamlets Council. The Spitalfields conservation areas around Fournier Street and Elder Street carry some of the tightest heritage controls in London, with Article 4 directions removing permitted-development rights on their early-Georgian frontages. We check your exact address before drawing.
On parapet-hidden butterfly roofs on the Georgian terraces, common across Tower Hamlets, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is pitched roofs on the Victorian stock, 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. Tower Hamlets Council is the decision-maker.
A householder planning application in Tower Hamlets 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. Tower Hamlets Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Tower Hamlets 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 Tower Hamlets project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Tower Hamlets 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.