Key facts: London
- Active companies, SIC 71111 (architectural activities), London registered office
- 5,848
- Counted
- 18 October 2026
- Rank among the 11 London professions on this site
- 4th
Count from the Companies House register, 18 October 2026.
Architecture practices registered in London
On 18 October 2026, 5,848 active companies with a London registered office gave SIC 71111, architectural activities, as their business activity. That puts architecture practices 4th of 11 London professions here, behind engineering consultancies (5,921) and ahead of advice firms (3,233).
SIC 71111 is used by architectural practices but also by design studios whose principals are not registered architects, so the count is wider than the registered profession. A registered office is also not always where a firm trades.
Regulation and what lenders check
"Architect" is a protected title: architects must register with the Architects Registration Board, whose code requires adequate professional indemnity insurance.
Lenders look at fee income and its spread across clients, work in progress, lock-up on long projects, PII and the partners' track record.
What London architecture practices usually fund
Practices usually borrow to spread the PII renewal, bridge lock-up on stage payments, invest in software and hardware or fund a partner buy-in.
Fees arrive at RIBA work stages while salaries and software licences are paid monthly, which is where lock-up funding fits.
Premises and security in London
Buying a freehold for a architecture practice in England brings Stamp Duty Land Tax at non-residential rates, and a lender secures the loan with a legal charge registered at HM Land Registry. Where the premises are leased, the remaining term and any break clause limit how long a loan can run.
Lenders for London architecture practices
Which lender suits a London case depends on the architecture practice and the deal, not the postcode. We search the whole market each time. Fees depend on the lender, and nothing is due upfront.
Common questions
How many architecture practices are there in London?
Companies House lists 5,848 active companies with SIC 71111 and a London registered office (18 October 2026). Partnerships and sole traders are not included.
Can an architecture practice finance design software licences?
Often, yes. Software and hardware can be spread through IT finance, subject to lender criteria.
Can you arrange finance for a London architecture practice?
Yes. We are a whole-of-market broker, not a lender, and search the market for lenders whose criteria suit the architecture practice. Fees depend on the lender; nothing upfront.
