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Free 2026 London Planning ReportLoft Conversion Drawings in Greenwich SE10

Rear extension behind a Georgian terrace in Greenwich SE10, Royal Borough of Greenwich
Greenwich · SE10 · Greenwich

Loft Conversion Drawings in Greenwich SE10

Fixed-fee, MCIAT-chartered loft conversion drawings for Greenwich (SE10) homeowners — Royal Borough of Greenwich validation and local constraints handled from the start.

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Greenwich (SE10) is among the most heritage-sensitive places to build in London: most of its period housing sits within one of the Royal Borough's conservation areas — West Greenwich, Greenwich Park, East Greenwich or the Ashburnham Triangle — and three of those carry Article 4 directions that pull nearly all external work into the planning system. Side-return and rear extensions on the Victorian and Georgian terraces are the staple, but they are judged carefully on materials, proportion and detail.

SE10 also sits within, or beside, the Maritime Greenwich World Heritage Site: the inscribed core is the Old Royal Naval College, Queen's House, Royal Observatory and Cutty Sark, with the surrounding streets in the buffer zone. That means townscape and setting weigh heavily on how schemes are assessed. We check exactly which conservation area — and which Article 4 direction — applies to a Greenwich address before advising on a permitted-development or full-application route.

Rear extension behind a Georgian terrace in Greenwich SE10, Royal Borough of Greenwich
Isometric illustration of a Greenwich SE10 home loft conversion drawings design
Proposed floor plan
Greenwich SE10

Planning in Greenwich (SE10): what to know before you apply

Most SE10 houses fall inside the West Greenwich, Greenwich Park, East Greenwich or Ashburnham Triangle conservation areas, and the first three carry Article 4 directions removing permitted-development rights for re-roofing, windows, doors and other external changes. The Maritime Greenwich World Heritage Site and its buffer zone add further townscape scrutiny. We confirm the conservation area and Article 4 status for a specific property before recommending a route and drawing to the Royal Borough's guidance.

Typical Greenwich housing stock

Georgian and early-Victorian terraces around Royal Hill and Crooms Hill, the Victorian terraces of the Ashburnham Triangle, and the streets of West and East Greenwich framing the town centre and Greenwich Park.

Streets we regularly draw for in Greenwich

Royal Hill · Crooms Hill · Ashburnham Grove · Gloucester Circus

Loft Conversion Drawings for Greenwich (SE10) homes: the package and the process

Every loft conversion drawings we prepare for an Greenwich property is drawn to Royal Borough of Greenwich’s validation standards and tuned to the SE10 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

A loft conversion is one of the most cost-effective ways to add a bedroom in London — but the right drawings depend on your roof type, your borough's rules and whether the work is permitted development or needs planning permission. DrawingsDirect draws every loft type and checks your permitted development eligibility before you commit to an application. Getting the route right at the drawing stage is what protects the whole build: a loft designed as permitted development but actually needing planning permission stalls on site, while one over-specified for a full application pays for consent it never needed.

Do I need planning permission for a loft conversion in London?

Many loft conversions are permitted development, but volume limits (40m³ for terraced homes, 50m³ for detached and semi-detached), materials and the presence of a conservation area or Article 4 direction can change that. We assess your roof and borough and recommend the fastest lawful route — often a Lawful Development Certificate rather than a full planning application. A certificate is worth having even when the work is clearly permitted: it gives your buyer's solicitor and your building-control surveyor documentary proof the loft is lawful, which matters when you sell.

Which loft conversion type suits your roof?

The best conversion depends on your roof shape and the headroom it offers.

Dormer

A box dormer adds headroom and floor area at the rear and is the most common London loft — frequently permitted development.

Mansard

A mansard rebuilds the rear (or front and rear) roof slope for maximum space, common in conservation areas but usually needing planning permission.

Hip-to-gable

Extends a hipped roof to a vertical gable, ideal for semi-detached and end-of-terrace homes.

Velux / rooflight

The simplest option — rooflights within the existing roofline, almost always permitted development.

London loft conversion types, routes and typical fees
Loft typeBest forUsual routeFee from
Velux / rooflightRoofs with existing headroomPermitted development / LDC£1,100
DormerRear headroom + floor areaPermitted development / LDC£1,300
Hip-to-gableSemi and end-of-terrace roofsPermitted development or planning£1,600
MansardMaximum space, conservation areasFull planning application£2,200
FAQ

Loft Conversion Drawings in Greenwich SE10 — FAQs

How much do loft conversion drawings cost in London?+
Drawing packages typically start around £1,100 for a permitted development loft and rise for mansards or full planning applications with structural calculations. We quote a fixed fee upfront.
Will my loft need a fire escape window?+
Most loft conversions require a means of escape and a protected stairway under building regulations. We design these in from the start.
Is a dormer loft permitted development?+
Often yes, within the volume limits and outside conservation areas — but we always check your specific property and borough first, free.
Can I convert my loft if I live in a conservation area?+
Usually yes, but conservation areas and Article 4 directions often remove permitted development for rear dormers, so the work needs a full planning application and a roof-form the council will accept — commonly a mansard or discreet rear dormer. We check your borough's designation before recommending a route.
Do you provide the structural calculations for the steels?+
Yes. Our full package includes structural drawings and calculations for the floor beams and any ridge or purlin steels, coordinated in-house so your builder can price and build without waiting on a separate engineer.
Do I need planning permission for an extension in Greenwich?+
It depends on the area. The interwar and post-war suburbs toward Eltham and Kidbrooke often retain permitted development rights for rear extensions and lofts, while the historic core around West Greenwich and Blackheath sits within conservation areas where those rights are removed. We check your address against the designations first and can confirm permitted development with a Lawful Development Certificate.
How does the Maritime Greenwich World Heritage Site affect my project?+
Proposals within the World Heritage Site or its buffer zone are assessed against the setting of Maritime Greenwich, where the council protects townscape and long views toward the Royal Observatory. It doesn't rule out an extension, but roof-level and prominent works near the site need careful, context-led design. We confirm whether the setting applies to your address before drawing.
Can I extend a home in Blackheath or Westcombe Park?+
Yes, but these conservation areas carry strong design control over materials, rooflines and front elevations, and sloping sites around Blackheath and the Greenwich hills shape what works. We design context-led drawings that respond to the area's Georgian and Edwardian character and the topography, which is what carries applications to consent here.
How long does the Royal Borough of Greenwich take to decide?+
Greenwich determines most householder applications within the statutory eight-week period once validated; World Heritage Site, conservation and protected-view cases can involve additional consultation. We prepare submissions to the council's validation checklist to avoid the drawing queries that cause most delays.
How much do planning drawings cost in Greenwich?+
We agree a fixed fee before starting, typically around 30% below an architect's fee for the same council-accepted drawings, with free redraws until Greenwich approves. A suburban Eltham extension and a West Greenwich heritage application differ in the evidence required, so we quote once we understand your address and project rather than by the hour.
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