Planning permission in City of London
Constraints: planning.data.gov.uk (ingested 2026-08-01) · Prices: HM Land Registry UK House Price Index, December 2025 · 11 sales in December 2025 · Open Government Licence
Planning in City of London — the detail
The City of London — the Square Mile — is a planning authority unlike any other in the capital: overwhelmingly commercial, with one of the highest concentrations of listed buildings and conservation areas anywhere, and very little residential stock. Its 28 conservation areas include Bank, Smithfield, Fleet Street, Charterhouse Square, Leadenhall Market, the Temples and the area around St Paul's Cathedral, and protected views of the cathedral and the Tower of London shape what can be built.
The borough's residential population is concentrated in a handful of places — chiefly the Barbican and Golden Lane estates, both Grade II listed and within the Barbican and Golden Lane Conservation Area (designated 2018), and the Temple. For these homes, listed building consent is central: the City's Barbican and Golden Lane Conservation Area SPD and the Barbican Estate Listed Building Management Guidelines set out exactly what alterations need consent, down to windows, finishes and fittings.
Permitted development does very little work in the City: most homes are listed flats, which have no permitted development rights, and conservation-area and listed-building controls apply almost everywhere. For any change, assume a full application and, in the listed estates, listed building consent — and check the City of London Local Plan and the relevant management guidelines before designing.
Policy detail lives in the City of London local plan and applications are submitted via the City of London planning portal.
Conservation areas in City of London
Real · planning.data.gov.ukEvery designated conservation area in City of London from the official dataset — inside one, permitted development narrows and design scrutiny rises.
- Bank
- Barbican and Golden Lane
- Bishopsgate
- Bow Lane
- Brewery
- Chancery Lane
- Charterhouse Square
- Creechurch
- Crescent
- Eastcheap
- Fenchurch Street Station
- Finsbury Circus
- Fleet Street
- Foster Lane
- Guildhall
- Laurence Poutney Hill
- Leadenhall Market
- Lloyd's Avenue
- New Broad Street
- Newgate Street
- Postman's Park
- Queen Street
- Smithfield
- St Helen's Place
- St Paul's Cathedral
- Temples
- Trinity Square
- Whitefriars
Source: planning.data.gov.uk · Open Government Licence. Boundaries are checked at address level by the area report.
Article 4 directions in City of London
Real · planning.data.gov.ukNo householder Article 4 geometry for the City of London appears in the national planning.data.gov.uk dataset, and the City is not an HMO-conversion borough. What constrains residential change here is the near-total conservation-area coverage and the very high concentration of listed buildings — including the Grade II–listed Barbican and Golden Lane estates — where listed building consent and conservation-area control, not Article 4 directions, are the operative regime. Check the City of London Local Plan and the relevant management guidelines.
Source: planning.data.gov.uk · Open Government Licence. Checked at address level by the area report.
Key City of London planning figures
| Conservation areas | 28 |
| Article 4 directions | — |
| Householder applications granted | 100% (1 of 1) |
| London average grant rate | 85.6% |
| Rank for lowest grant rate | 33 of 33 |
| Average house price | £743,556 |
| Annual price change | -6.8% |
Conservation areas and Article 4 directions: planning.data.gov.uk, ingested 2026-08-01 · Householder approval rates: MHCLG district planning application statistics (PS2), 2025 Q2 to 2026 Q1 · House prices: HM Land Registry UK House Price Index, December 2025 · Open Government Licence. Figures are as published on those dates; a designation missing from the national dataset is a gap in the dataset, not proof it does not exist.
What gets built in City of London
Barely applies — the City's homes are listed Barbican and Golden Lane flats with no PD rights, where listed building consent governs any change.
Rear extension in City of London →Not applicable in practice — the City's residential stock is listed flats, not terraced houses with side returns.
Side return extension in City of London →Barely relevant — the City's listed flats can't be loft-converted by a household; alterations need listed building consent.
Loft conversion in City of London →Effectively not applicable — basements under the City's listed estates are governed by listed building consent and estate management guidelines, not householder PD.
Basement extension in City of London →Not applicable — the City's homes are listed flats without private gardens or outbuilding rights.
Garden room in City of London →City of London postcode by postcode
EC2 holds the City's main residential community — the Grade II–listed Barbican and Golden Lane estates, within the Barbican and Go…
EC2 planning report →EC3 covers the eastern Square Mile toward Tower Hill and Aldgate, with commercial floorspace and limited residential stock. Where …
EC3 planning report →EC4 runs from Fleet Street and the Temples to St Paul's and Blackfriars — one of the densest heritage cores in the country. Reside…
EC4 planning report →EC2M is the office City. Broadgate's trading floors, Liverpool Street station and the towers around them dominate, and the residen…
EC2M planning report →EC2V is the civic and banking heart of the Square Mile: Cheapside's retail frontage, Gresham Street's offices and the medieval str…
EC2V planning report →EC2Y is the exception in the City — a genuinely residential district. The Barbican and Golden Lane estates are Grade II listed, si…
EC2Y planning report →EC3A is the City's eastern edge around Aldgate and Houndsditch, where insurance and back-office floorspace fills most of the front…
EC3A planning report →EC3M is the insurance quarter — broking and underwriting floorspace along Fenchurch Street and Leadenhall Street, with tall towers…
EC3M planning report →EC3N runs from the Minories down to Tower Hill, and it holds more housing than most of the Square Mile — flat conversions on the e…
EC3N planning report →EC3R covers the Monument, the lanes dropping south to Lower Thames Street and the riverside frontage beyond. It is a commercial di…
EC3R planning report →EC4A covers Fetter Lane, Shoe Lane and the streets climbing to Holborn Circus — legal, media and professional offices in post-war …
EC4A planning report →EC4M is the ground around St Paul's — Ludgate Hill, Paternoster, Ave Maria Lane and the lanes running east toward Bread Street. It…
EC4M planning report →EC4R is the slope between Cannon Street and the river: Dowgate Hill, Cousin Lane, College Hill and the lanes dropping to Upper Tha…
EC4R planning report →EC4V runs from Blackfriars along Queen Victoria Street to Queenhithe and the old wharf frontages rebuilt as offices. Commercial us…
EC4V planning report →EC4Y is Fleet Street, Whitefriars, Carmelite Street and the Temple — the old newspaper quarter, now offices, wrapped around the In…
EC4Y planning report →City of London planning, asked straight
Will I need listed building consent in the City of London?
Is my City of London flat in a conservation area?
What guidance applies to alterations in the Barbican?
How do I check constraints for a City of London address?
Related reading
If your home is listed, planning permission is only half the story.
Read the guide →Your lease is a contract — and the council was never the only gatekeeper.
Read the guide →Designated land edits the rulebook — here's the exact redline.
Read the guide →What applies at your address?
Borough-level rules only narrow it down. Enter a City of London postcode for the live constraint check — conservation area, Article 4 and sold-price comparables, cited to source.
Need it in writing for one address? A planning permission report for a City of London property — from £59, or surveyor-reviewed from £295.
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