Dormer, hip-to-gable and mansard loft conversion drawings for Havering homes — prepared to Havering Council's design guidance, delivered in days and revised free until your decision lands, with a free approval-odds score first.
Havering Council granted 85% of the householder planning decisions it made in its latest published year — 2 points below the 87% England-wide householder average. Green Belt coverage across the east restricts the scale of extensions and any new outbuildings on affected plots, which is where a policy-literate drawing pack earns its keep. Its dominant interwar (1918–1939) 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. Havering carries at least one Article 4 direction, and conservation areas including Langtons (Hornchurch), Upminster (Tithe Barn) and Rainham Village remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Havering is determined against an 8-week statutory target.
Romford (denser interwar and postwar housing around the town centre and Marshalls Park), Hornchurch (interwar semis and the Langtons conservation area), Upminster (larger suburban homes near the Tithe Barn conservation area), Emerson Park (low-density detached houses on generous plots under Article 4), Rainham (historic village core alongside newer housing near the Thames marshes) and Elm Park (planned interwar semi-detached suburb) — these are the Havering pockets our drawings cover most. Heritage designations here include Langtons (Hornchurch), Upminster (Tithe Barn), Rainham Village, Emerson Park and Corbets Tey. Havering Council weighs each proposal against Havering Local Plan 2016–2031 and the borough's residential extensions and alterations guidance, where generous plot sizes make front-of-house impact and the gaps between detached homes a key design test. On roofs the borough is hipped roofs on the suburban semis and gabled roofs on the detached and older stock, over interwar and postwar semi-detached houses, detached houses on larger plots and village-core cottages and period frontages.
Havering's roofs set the brief. The borough is built largely from interwar and postwar semi-detached houses, detached houses on larger plots and village-core cottages and period frontages, and its lofts sit under hipped roofs on the suburban semis and gabled roofs on the detached and older stock — the geometry that decides whether a rear dormer, a hip-to-gable or a mansard gives you the headroom you want. Havering Council assesses loft proposals against Havering Local Plan 2016–2031 and the borough's residential extensions and alterations 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 Havering Council can verify them. Green Belt coverage across the east restricts the scale of extensions and any new outbuildings on affected plots, so we resolve it on the page rather than leave it for the case officer to raise.
Havering also carries protected streets — Langtons (Hornchurch), Upminster (Tithe Barn), Rainham Village, Emerson Park and Corbets Tey among them. Prized low-density enclaves such as Emerson Park sit under Article 4 controls, and with much of eastern Havering falling inside Metropolitan Green Belt, extension potential is tightly held on the borough's fringes. We check your address against those designations before a line is drawn.
Many Havering 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 Havering Council if any of these apply:
We draw the roof line, the ridge height and the neighbour's daylight on the page — the relationships Havering 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 Havering Council's real householder decision record, pulled from official planning statistics and updated as new data lands. Havering grants a fair majority of householder applications, with extensive Green Belt on its eastern side the main brake on what larger schemes can achieve. 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 Romford, Hornchurch and Upminster, 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 hipped roofs on the suburban semis, that is usually the most efficient use of the roof; where the stock is gabled roofs on the detached and older stock, a hip-to-gable followed by a rear dormer unlocks far more space, though it needs a full application.
Generous plot sizes make front-of-house impact and the gaps between detached homes a key design test. 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 Havering 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 Havering roofs come up most often:
Loft conversion drawings for Romford's denser interwar and postwar housing around the town centre and Marshalls Park — measured, volume-checked and drawn to Havering Council's guidance.
Loft conversion drawings for Hornchurch's interwar semis and the Langtons conservation area — measured, volume-checked and drawn to Havering Council's guidance.
Loft conversion drawings for Upminster's larger suburban homes near the Tithe Barn conservation area — measured, volume-checked and drawn to Havering Council's guidance.
Loft conversion drawings for Emerson Park's low-density detached houses on generous plots under Article 4 — measured, volume-checked and drawn to Havering Council's guidance.
Loft conversion drawings for Rainham's historic village core alongside newer housing near the Thames marshes — measured, volume-checked and drawn to Havering Council's guidance.
Loft conversion drawings for Elm Park's planned interwar semi-detached suburb — measured, volume-checked and drawn to Havering Council's guidance.
The right loft in Havering 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 Havering 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 Langtons (Hornchurch) and Upminster (Tithe Barn) and Article 4 directions can remove permitted-development rights.
A fixed process built around how Havering Council validates and decides householder loft applications — most drawings are submission-ready within seven days of survey.
Tell us your Havering 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 Havering 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 Havering Council's roof-alteration guidance.
We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Havering 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 Havering the main exceptions are hip-to-gable conversions, dormers visible from the highway, and homes in conservation areas such as Langtons (Hornchurch) and Upminster (Tithe Barn) or on streets with an Article 4 direction. Havering Council is the decision-maker.
Generally no. In conservation areas including Langtons (Hornchurch) and Upminster (Tithe Barn), Class B permitted-development rights for lofts are removed, so a rear dormer that would be lawful elsewhere needs a full application to Havering Council. Prized low-density enclaves such as Emerson Park sit under Article 4 controls, and with much of eastern Havering falling inside Metropolitan Green Belt, extension potential is tightly held on the borough's fringes. We check your exact address before drawing.
On hipped roofs on the suburban semis, common across Havering, a rear dormer is usually the most efficient conversion and often permitted development. Where the roof is gabled roofs on the detached and older 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. Havering Council is the decision-maker.
A householder planning application in Havering 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. Havering Council is the decision-maker.
If your dormer is permitted development, a lawful development certificate from Havering 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 Havering project individually — a fixed, no-obligation price back within one working day. The quote covers the full drawing pack with free revisions until Havering 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.