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Free 2026 London Planning ReportPlanning Permission 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

Planning Permission in City of London

Fixed-fee, MCIAT-chartered planning permission 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

Planning Permission for City of London homes: the package and the process

Every planning permission 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.

Securing planning permission in London means navigating borough-specific design guidance, conservation areas, Article 4 directions and a validation checklist that differs from one council to the next. DrawingsDirect prepares the existing and proposed drawings your local planning authority needs, submits them through the Planning Portal, and manages the application to a decision — for a fixed fee agreed before we start.

Because we are MCIAT-chartered architectural technologists rather than a general architecture practice, you get the same council-accepted drawings and professional accountability at a typically lower fee, with structural coordination handled in-house.

Do I need planning permission for an extension in London?

Many single-storey rear extensions, loft conversions and outbuildings fall under permitted development rights and do not need a full planning application — but London's dense housing stock, conservation areas and Article 4 directions frequently withdraw those rights. Before you pay for a full application, we check your property against the current permitted development thresholds and your borough's local constraints.

Where permitted development applies, we recommend a Lawful Development Certificate instead of full planning — it is faster, cheaper and gives you a legal document confirming the work was lawful. Where a full application is genuinely required, we prepare it properly the first time.

Permitted development vs a full planning application

Permitted development lets you build within defined volumetric limits without committee review. A full householder application is assessed against the borough's local plan for scale, daylight, neighbour impact and design. We advise which route your project qualifies for and why.

Article 4 directions and conservation areas

If your home sits in a conservation area or under an Article 4 direction, permitted development rights are often removed — meaning even modest changes need consent. Each borough page lists the local directions and conservation areas we routinely design around.

How do you apply for planning permission through the London Planning Portal?

We manage the full lifecycle of your submission — survey, drawings, supporting documents and officer liaison — so you never have to decode a validation checklist yourself.

Phase 1 — existing and proposed site surveys

A laser-measured survey captures your property exactly, so existing and proposed drawings match reality millimetre for millimetre.

Phase 2 — technical drawing package

Site location plan, block plan, floor plans, elevations and sections drawn to your borough's scale and formatting requirements, with a design and access statement where needed.

Phase 3 — liaison with the planning officer

We answer the council's queries, negotiate amendments, and redraw free until the decision lands.

Typical fixed-fee planning drawing packages
PackageProduction windowCompliance layerTypical fee
Permitted Development pack7–10 working daysLawful Development Certificate submission£950–£1,450
Full Planning pack10–14 working daysCouncil liaison & design statement£1,600–£2,400
Planning + Building Regs pack14–21 working daysStructural calculations included£2,200–£3,850
FAQ

Planning Permission in City of London — FAQs

How long does it take to get planning permission from a London council?+
Householder applications carry a statutory 8-week determination period. We deliver your drawings within about 7 days of survey, so the council clock can start quickly. Lawful Development Certificates usually resolve faster.
What happens if the council refuses?+
Refusals are rare because every drawing is checked against your borough's local plan before submission. If it happens we advise on revisions or handle the appeal — many refusals recover at appeal.
Do you cover my borough?+
Yes — we submit across all 33 London boroughs every week. Each borough has its own page covering local conservation, Article 4 and validation quirks.
Is the fee really fixed?+
Yes. We quote a fixed fee before we start and it does not move, even when the council asks for revisions — those redraws are free.
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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