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Free 2026 London Planning Report — Building Regulations Drawings in Lewisham SE13

Kitchen extension interior in an early-Victorian house in Lewisham SE13, London Borough of Lewisham
Lewisham · SE13 · Lewisham

Building Regulations Drawings in Lewisham SE13

Fixed-fee, MCIAT-chartered building regulations drawings for Lewisham (SE13) homeowners — London Borough of Lewisham validation and local constraints handled from the start.

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Lewisham (SE13) itself runs from the historic Georgian and early-Victorian houses of Belmont Hill down to a fast-regenerating town centre around Lewisham High Street and Loampit Vale. Householder projects on the hill sit in a conservation context, while the town-centre streets are shaped by regeneration and taller development.

The Belmont conservation area is the main householder control, protecting the older houses on and around Belmont Hill, and Lewisham's small-HMO Article 4 direction restricts new conversions across the area. We check a SE13 address against both, and against the town-centre policies, before recommending a route.

Kitchen extension interior in an early-Victorian house in Lewisham SE13, London Borough of Lewisham
Isometric illustration of a Lewisham SE13 home building regulations drawings design
Proposed floor plan
Lewisham SE13

Planning in Lewisham (SE13): what to know before you apply

SE13's Belmont conservation area protects the Georgian and early-Victorian houses on Belmont Hill, where roofline and elevation changes are closely controlled, while Lewisham's small-HMO Article 4 direction restricts new small-HMO conversions across the district. Around the town centre, regeneration and tall-building policy set the context rather than householder permitted development.

Typical Lewisham housing stock

Georgian and early-Victorian houses on and around Belmont Hill, Victorian terraces on the streets off Lewisham High Street, and 20th-century and new-build flats through the regenerating town centre.

Streets we regularly draw for in Lewisham

Lewisham High Street · Belmont Hill · Granville Park · Loampit Vale

Building Regulations Drawings for Lewisham (SE13) homes: the package and the process

Every building regulations drawings we prepare for an Lewisham property is drawn to London Borough of Lewisham’s validation standards and tuned to the SE13 constraints above. Here is what the drawing package covers and how the process runs from first survey to approval.

Where planning drawings gain design consent, building regulations drawings prove your project meets the technical standards for a safe, warm, structurally sound building. DrawingsDirect produces full-plans building control packages for London extensions, lofts and conversions, with structural calculations produced in-house rather than subcontracted.

What do building regulations drawings cover?

A building control package translates the approved design into a buildable, compliant specification.

  • Construction sections and detailed junctions
  • Structural drawings and calculations (steel beams, foundations, loadings)
  • Part L thermal performance and insulation specification
  • Fire safety — escape routes, protected structure, alarms
  • Drainage and ventilation layouts

Full Plans or Building Notice — which should I choose?

A Full Plans application has your drawings checked and approved by Building Control before work starts, giving certainty and a document lenders and buyers like to see. A Building Notice lets simpler work start sooner but is inspected as it proceeds, with less up-front certainty. For most London extensions and loft conversions we recommend Full Plans, and prepare the package accordingly.

Full Plans vs Building Notice for a London project
FactorFull PlansBuilding Notice
Drawings checked before work startsYesNo
Up-front certaintyHigh — approval in writingLower — inspected as built
Best forExtensions, lofts, structural workMinor, simple works
Evidence for lenders and buyersFull approval recordCompletion certificate only
Risk of costly on-site reworkLowHigher if issues are found late

Also in Lewisham SE13

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FAQ

Building Regulations Drawings in Lewisham SE13 — FAQs

Do I need building regulations approval as well as planning permission?+
Almost always, yes. Planning permission covers what the building looks like; building regulations cover how safely it is built. Most extensions and loft conversions need both.
How long does Building Control approval take?+
A Full Plans application is typically assessed within about five weeks. We prepare a complete package and respond to any conditions promptly, so approval is not held up by missing detail.
Can building regulations drawings be done after planning approval?+
Yes. Many homeowners secure planning permission first, then commission the building regulations package before starting on site. We can pick a project up at either stage.
Are structural calculations included?+
Yes — we produce structural drawings and calculations in-house as part of the building regulations package, so your builder has everything to price and build.
Can you submit to Building Control for me?+
Yes, we prepare and submit the Full Plans package and respond to any Building Control queries.
Do I need planning permission for a side-return extension in Lewisham?+
On the Victorian and Edwardian terraces of Brockley, Forest Hill and Hither Green a single-storey side-return or rear extension can fall within permitted development, so a full application isn't always needed. Conservation areas such as Blackheath, Brockley and Telegraph Hill restrict this. We check your street's designation first and can confirm permitted development with a Lawful Development Certificate where it qualifies.
What does Lewisham's borough-wide HMO Article 4 direction affect?+
Lewisham applies a borough-wide Article 4 direction removing permitted development rights for change of use to an HMO (C3 to C4), so a conversion to a house in multiple occupation needs a full application anywhere in the borough. It doesn't affect a standard family extension or loft, but we confirm whether it applies to your intended use before advising on a route.
Can I convert the loft on my Lewisham terrace?+
Usually, yes. The terraces of Brockley, Forest Hill and Hither Green suit hip-to-gable and dormer loft conversions, which frequently qualify as permitted development within the volume limits. Outside the conservation areas this is often the quickest route. We confirm eligibility against those limits and any designation, then produce the planning and building-regulations drawings.
How long does Lewisham Council take to decide?+
Lewisham determines most householder applications within the statutory eight-week period once validated; conservation cases can attract additional consultation. The dense terraced streets are party-wall-sensitive, so the commonest delay is a drawing query — we prepare submissions to the council's validation checklist to keep them moving.
How much do planning drawings cost in Lewisham?+
We agree a fixed fee before starting, usually around 30% below an architect's fee for the same council-accepted drawings, with free redraws until Lewisham approves. A side-return, a loft and a conservation-area scheme differ in complexity, so we quote once we understand your street and project rather than charging by the hour.
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