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Architect companies in Cardiff

204 architect companies have a registered office in Cardiff, and 24 of them were formed in 2025 or 2026. In their latest accounts, the typical one held £38,250 in cash and owed £18,420 at year end.

Companies House register, 1 September 2026, and accounts filed in the last twelve months. Compared with the official category “Architectural activities” (SIC 71111).

The numbers

Architect companies in Cardiff compared with the same category across the UK. Typical figures are medians.
MeasureCardiffUK
Registered companies20418,189
Formed in 2025 or 202624 (12%)11%
Being struck off or in liquidation38 (19%)5.5%
Typical cash at year end£38,25061 accounts£19,639
Typical amount owed at year end£18,420128 accounts£19,135
Typical number of employees1130 accounts1

What this means if you’re starting one

You will be up against established operators

12% of the 204 architect companies in Cardiff were formed in 2025–26, against 26% of all companies in Cardiff. Nationally, that share of new companies is lower than 82% of UK industries.

Few new companies are entering, so your customers will compare you with businesses that have years of reviews and regulars.

You can start without much equipment

The typical architect company in Cardiff carries £5,300 of equipment and other fixed assets after depreciation, lower than 88% of UK industries.

Most of the cost of entry is time and running costs rather than kit, so a small test is cheap.

Most of these businesses are run by one or two people

The typical architect company in Cardiff reports 1 employee; the top quarter has 3 or more (130 filings).

You are mostly up against owner-operators. Your own hours are likely to be your biggest cost, and the easiest one to undercount.

Planning a business like this in Cardiff?

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What these figures can’t tell you

Companies are counted where their registered office is, which may be an accountant or a home address rather than a shop. Sole traders and partnerships are not on the register, and electronically filed accounts cover roughly 60–75% of accounts filed each year. The figures describe companies that exist; they cannot prove demand for your idea or predict whether it will work. How the figures are built.

Architect in other places

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