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Free 2026 London Planning ReportBuilding Regulations Drawings in City of London

Listed mansion and estate flats of the kind that make up the City of London's small residential population
City of London · London

Building Regulations Drawings in City of London

Fixed-fee, MCIAT-chartered building regulations drawings for City of London homeowners — City of London Corporation validation and local constraints handled from the start.

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The City of London is the Square Mile: overwhelmingly commercial, with a small residential population concentrated in the listed Barbican and Golden Lane estates, the Inner and Middle Temple, and a scattering of conversions and mansion flats. Almost every home sits within a conservation area or a listed building, so permitted development can rarely be assumed and most alterations — even internal ones — need planning permission or listed-building consent from the City of London Corporation.

Near-comprehensive conservation-area coverage spans Charterhouse Square, Smithfield, Whitefriars, Fleet Street, Bank and the Barbican and Golden Lane, and Article 4 directions remove permitted development across these areas. A high density of listed buildings — including the Grade II-listed Barbican estate — means listed-building consent is usually required for external and many internal changes, and the Corporation's estate-management rules on the Barbican, Golden Lane and Temple frequently apply alongside planning. Strict townscape, protected-view and tall-building control run throughout the Square Mile. Because the residential stock is almost entirely flats within managed listed estates rather than houses, the work here centres on planning, architectural and building-regulations drawings rather than extensions or lofts.

We prepare City of London planning, architectural and building-regulations drawings that respond to this uniquely controlled setting, screening conservation, listing and estate-management constraints for your exact address before any design begins and preparing the heritage-led drawings and justification the Corporation expects. Because most applications are determined within the statutory eight-week period once validated, we work validation-first to avoid the queries that cause delays. The fee is fixed and agreed up front, drawings typically follow within about seven days, and we offer free redraws until consent is granted — the same Corporation-accepted drawings an architect would produce, usually at around 30% less.

Listed mansion and estate flats of the kind that make up the City of London's small residential population
Isometric illustration of a City of London home extension design
Proposed floor plan
City of London

Planning in City of London: what to know before you apply

In the City of London, permitted development can rarely be assumed: near-comprehensive conservation-area coverage and a high density of listed buildings — including the Grade II-listed Barbican estate — mean a full planning application, and often listed-building consent, is usually required even for modest works. Estate-management rules on the Barbican, Golden Lane and Temple frequently apply alongside. Because the residential stock is almost entirely flats within managed listed estates, we focus on planning, architectural and building-regulations drawings rather than house extensions or lofts.

Typical City of London housing stock

A very small residential population concentrated in the listed Barbican and Golden Lane estates, the Inner and Middle Temple, and a handful of conversions and mansion flats — almost all within conservation areas or listed.

Areas we regularly draw for in City of London

Barbican · Golden Lane · Smithfield · Temple · Blackfriars · Aldgate · Bank

Building Regulations Drawings for City of London homes: the package and the process

Every building regulations drawings we prepare for a City of London property is drawn to City of London Corporation’s validation standards and tuned to the local 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
FAQ

Building Regulations Drawings in City of London — 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 works in the City of London?+
Almost always. Near-comprehensive conservation-area coverage and a high density of listed buildings — including the Grade II-listed Barbican estate — mean a full planning application, and often listed-building consent, is usually required even for modest works. Permitted development can rarely be assumed. We confirm the exact designations and listing status for your address before any design begins.
Can I alter a flat in the Barbican or Golden Lane estate?+
Often, but with care. Both estates are listed, so listed-building consent is usually required for external and many internal changes, and the City of London Corporation's estate-management rules apply alongside planning. We screen the listing and estate requirements first and prepare the heritage-led drawings and justification the Corporation expects.
What kinds of drawings do you prepare in the City of London?+
Because the City's residential stock is almost entirely flats within managed listed estates, we focus on planning, architectural and building-regulations drawings — for internal alterations, refurbishments and change-of-use schemes — rather than the house extensions and loft conversions common in the outer boroughs. We tailor the package to what the Corporation requires for your specific building.
How long does the City of London Corporation take to decide?+
The Corporation determines most applications within the statutory period once validated, though listed-building and conservation cases frequently attract additional consultation given the sensitivity of the Square Mile. We prepare submissions to the Corporation's exacting validation and design standards to avoid the drawing queries that cause most delays.
How much do drawings cost in the City of London?+
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 the Corporation approves. Heritage-led and listed-building schemes require more evidence than a standard alteration, so we quote once we understand your address and scheme rather than by the hour.
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