Barking and Dagenham's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in Barking and Dagenham conservation areas — with heritage statements and planning officer negotiation built in.
Barking and Dagenham's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in Barking and Dagenham conservation areas — with heritage statements and planning officer negotiation built in.
Housing stock in Barking and Dagenham: Becontree Estate (the world's largest council estate when built, 1920s-30s) dominates; post-war estates around Barking town; new-build riverside.
Character: Major regeneration in Barking Riverside; mostly permissive planning outside conservation pockets.
We check against Barking and Dagenham Council's mansard design guide and design to match the terrace.
Required for Barking and Dagenham's conservation areas — demonstrates the mansard respects character and townscape.
Accurate photomontage showing how the mansard sits alongside neighbours — often decisive at Barking and Dagenham Council committee.
Mansards invariably trigger Party Wall notices in Barking and Dagenham's dense terraced streets. Structural package includes new ridge, tie beams, floor joists.
Full liaison with Barking and Dagenham Council planning officer, committee representation if called in.
Part L thermal, Part B fire (critical on mansards), Part E acoustic separation.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Direct answers to the questions Barking and Dagenham homeowners ask every week about mansard roof extensions.
Start a free quote →Mansards in Barking and Dagenham are less common historically — Barking and Dagenham Council considers each application on its merits. Rear mansards on suitable terraced or semi-detached properties, matching the roofscape, have a reasonable approval rate with the right design and supporting heritage commentary where relevant.
A 70° front slope is typical for Barking and Dagenham mansards — steep enough to maximise floor area while reading as a roof rather than a full additional storey. Front dormers should be small and symmetrical. Barking and Dagenham Council's design guide (where published) takes precedence on detail.
Often yes, but Barking and Dagenham Council favours applications supported by wider street precedents. Where mansards already exist nearby in Barking and Dagenham, approval is far more likely. We review street precedents at the feasibility stage.
Our architectural fees for a Barking and Dagenham mansard start at £1,575 (planning + building regs + structural + heritage statement). Typical Barking and Dagenham build costs are £90,000–£150,000 depending on size, complexity and access.
Full-height — typically 2.3–2.5m ceiling from the new floor. Unlike a dormer, which gives partial head height, a mansard provides a complete additional storey within Barking and Dagenham's becontree Estate (the world's largest council estate when built, 1920s-30s) dominates terraced context.
We cover all Barking and Dagenham postcodes — {postcodes} — and have submitted mansard applications across the borough. Our heritage statement and design-and-access statement are included in every mansard package.
Barking and Dagenham's becontree Estate (the world's largest council estate when built, 1920s-30s) dominates terraced stock is the natural context for mansard extensions — they were originally designed for Victorian and Edwardian rows. Feasibility depends on street precedent, conservation area status and party wall implications. We assess all three at the free site visit.
A mansard adds a full upper storey — typically 35–45m² of usable floor space. In Barking and Dagenham this often converts a 3-bed house to 4 or 5 beds. The steep front slope (70°) and flat top read as a roof, not a full floor, which is why Barking and Dagenham Council accepts them more readily than a simple box extension.
We cover every London borough with the same fixed-fee approach. If your property sits on a boundary, here are the neighbouring options.
We cover every architectural technology service in Barking and Dagenham with one chartered team.
From £840. A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning P...
From £840. A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L ther...
From £1,225. Every loft type across every Barking and Dagenham roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full...
From £1,225. The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with ...
From £995. Turn your unused Barking and Dagenham garage into a bedroom, home office or open-plan kitchen-diner. Planning route asse...
From £1,950. Full architectural technology service for basement digs and cellar conversions in Barking and Dagenham — structural unde...
From £350. Chartered structural engineer calculations for every residential intervention in Barking and Dagenham — steel beams, lin...
From £540. Fixed-fee measured surveys across Barking and Dagenham from £540 — floor plans, elevations and sections to ±3mm accuracy...
From £450. End-to-end Party Wall Act 1996 service for Barking and Dagenham — Section 1, 3 and 6 notices, schedule of condition surv...
From £1,225. London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your ...
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Free quote in 60 seconds. Fixed fee from £1,575. MCIAT chartered.
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