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.
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.
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
What the numbers say about City of London planning decisions
These are City of London Corporation’s own reported figures, published by government rather than estimated by us. They are what we design against — a borough that refuses one householder application in five needs a different drawing package from one that refuses one in twenty.
Householder decisions in City of London
Every householder application City of London Corporation decided over the four quarters to 2026 Q1.
| Householder applications decided | 1 |
|---|---|
| Granted | 1 |
| Refused | 0 |
Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-08-16.
Permitted development in City of London
Larger householder extensions put to City of London Corporation under the prior-approval route, and lawful-development certificates decided, over eight quarters.
| Prior approval not requiredWent ahead without a full application | 0 |
|---|---|
| Prior approval granted | 0 |
| Prior approval refused | 0 |
| Building upwards, prior approval refused | 0 |
| Certificates of lawful development decided | 32 |
Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-08-16.
Designated areas in City of London
Conservation areas City of London Corporation has published to the national register, and when it designated them. Where a borough has supplied no Article 4 data the row is omitted rather than shown as zero.
| Conservation areas on the register | 28 |
|---|---|
| First designatedOf the 28 whose designation date the register records | 2,007 |
| Most recent designation | 2,024 |
| Article 4 directions in force | 1 |
Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-08-16.
If City of London Corporation refuses: appeal outcomes
Planning appeals against City of London Corporation determined by the Planning Inspectorate, 2021–2026. Enforcement notices and withdrawn cases are excluded.
| Appeals determined | 53 |
|---|---|
| Allowed | 16 |
| Dismissed | 37 |
Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-08-16.
Planning Permission for City of London homes: the package and the process
A householder application is refused validation far more often than it is refused permission, and almost always for the same reasons: a location plan at the wrong scale, no red line around the application site, a missing ownership certificate, or elevations that do not show every face of the building affected. We prepare the full submission set — location plan, block plan, existing and proposed floor plans, elevations and sections — so the case officer receives a complete case on day one.
Once the application is live we stay on it. Officers routinely come back with questions about materials, boundary treatment or a dimension they cannot read off the drawings, and a fast, drawn answer is usually the difference between a decision inside the statutory period and a request to withdraw and resubmit.
Which route applies is decided by the building before it is decided by policy. A house that has never been extended usually has allowances left to use; a flat, a listed building or a home in a conservation area often has none, and the same drawing set then has to make a design case rather than a compliance one.
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.
How long does planning permission take, and what does it cost?
Drawings are typically ready within 7 days of survey. Your council then has a statutory 8 weeks to decide a householder application. Our drawing fees are fixed and quoted upfront — the table below shows typical packages.
| Package | Production window | Compliance layer | Typical fee |
|---|---|---|---|
| Permitted Development pack | 7–10 working days | Lawful Development Certificate submission | £950–£1,450 |
| Full Planning pack | 10–14 working days | Council liaison & design statement | £1,600–£2,400 |
| Planning + Building Regs pack | 14–21 working days | Structural calculations included | £2,200–£3,850 |
Planning Permission in City of London — FAQs
How long does it take to get planning permission from a London council?+
What happens if the council refuses?+
Do you cover my borough?+
Is the fee really fixed?+
Do I need planning permission for works in the City of London?+
Can I alter a flat in the Barbican or Golden Lane estate?+
What kinds of drawings do you prepare in the City of London?+
How long does the City of London Corporation take to decide?+
How much do drawings cost in the City of London?+
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