Areas / City of London
Architects in the City of London
Most homes in the Square Mile are flats, many in the listed Barbican and Golden Lane estates, so residential work here is usually internal or external alteration that needs listed building consent rather than an extension.
RIBA Chartered Practice · ARB-registered architects · Extensions, lofts and planning drawings

- FreeInitial consultationA conversation about your project, and a first view of what's possible, before any fee is agreed.
- FixedFee for each stageEvery stage is priced in writing before it starts. No hourly billing.
- 3DSee the design firstYour design is shown in 3D before it's submitted, while changes are still easy.
- FreeResubmissionIf planning is refused, we revise and resubmit at no extra design fee. Conditions
Local planning points
Planning in City of London
Checked October 2026. Planning policy changes, so we confirm the position for your address before you commit.
The Barbican Estate was listed Grade II in 2001, and its landscape is Grade II* on the Register of Parks and Gardens. The Barbican Listed Building Management Guidelines (an SPD) help residents judge which works need listed building consent.
SourceIn Barbican flats, removing or altering internal walls, replacing original internal doors or replacing windows needs listed building consent, while like-for-like repairs and changing bathroom fittings normally do not. The residents' guide predates the current management guidelines, so check before starting work.
SourceThe City has 28 conservation areas, including Barbican and Golden Lane and Charterhouse Square, and the Barbican and Golden Lane Conservation Area has its own SPD.
SourceThere are more than 600 listed buildings and other listed structures in the City.
SourceThe new City Plan 2040 has been examined but is not yet adopted: on 29 June 2026 the government directed further hearings on tall buildings, which will delay adoption.
Source
Postcodes
City of London by postcode
1,579 postcodes in 20 postcode districts, 6.9 miles from our studio in Cricklewood.
- E12% in City of London
- EC1A61% in City of London
- EC1Y14% in City of London
- EC2M81% in City of London
- EC2Nall in City of London
- EC2R90% in City of London
- EC2Vall in City of London
- EC2Y92% in City of London
- EC3Aall in City of London
- EC3Mall in City of London
- EC3N93% in City of London
- EC3Rall in City of London
- EC3Vall in City of London
- EC4Aall in City of London
- EC4Mall in City of London
- EC4N94% in City of London
- EC4Rall in City of London
- EC4Vall in City of London
- EC4Yall in City of London
- WC2A19% in City of London
Where a postcode district is shared, neighbouring streets can fall under a different council. The checker below gives the answer for an exact postcode.
Postcode checker
Which council decides your application?
Type any postcode in the 33 London boroughs we cover. We'll tell you which council handles planning there and show you the local planning points.
Services
What we draw in City of London
- House extensions
- Loft conversions
- Basement conversions
- Planning permission
- Building regulations drawings
- Structural calculations
- Flat conversions
- Change of use
- New builds
- Interior design
Neighbourhoods we cover include Barbican, Golden Lane, Smithfield, Temple, Blackfriars and Aldgate.
Neighbouring councils: Islington, Camden, Tower Hamlets, Hackney, Westminster.