Architecture practices to acquire in the South East
Updated 9 November 2026
Looking to acquire an architecture practice in the South East? Firmbase ranks 231 architecture practices using public company information to help buyers prioritise firms for research and potential outreach. The Approach Score ranks firms using public signals including director age and tenure, ownership, business scale, financial strength and recent changes. These firms are not listed for sale, and the ranking does not indicate that an owner is considering a sale.
The median firm has 8 staff and has been in business for 15 years. Looking beyond the South East? Explore the full UK list of architecture practices.
231
Firms
UK 1,741
17%
Every director 55+
UK 22%
23%
Held 75%+ by one person
UK 24%
15
Median years in business
UK 15
8
Median headcount
UK 8
£250k to £500k
Median turnover band
UK £250k to £500k · includes our estimates
Towns with the most firms
- Southampton 23 firms
- Brighton 16 firms
- Portsmouth 15 firms
The first 25 firms, in Approach Score order
| Rank | Firm | Approach Score | The facts behind the score |
|---|---|---|---|
| 1 | Randell Design Group Birdham, West Sussex | Approach Score 88/100 |
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Company no. 07378943 · Companies House |
| 2 | PAD Studio Lymington, Hampshire | Approach Score 81/100 |
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Company no. 08434206 · Companies House |
| 3 | Crafted Architects Romsey, Hampshire | Approach Score 81/100 |
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Company no. 10997110 · Companies House |
| 4 | Thomas Sands Consulting Milton Keynes, Bucks | Approach Score 81/100 |
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Company no. 07206811 · Companies House |
| 5 | Oaten Architects Bexhill, East Sussex | Approach Score 81/100 |
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Company no. 08909177 · Companies House |
| 6 | Lynch Architects Tonbridge | Approach Score 80/100 |
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Company no. 05418397 · Companies House |
| 7 | Studio Tashima Maidstone, Kent | Approach Score 79/100 |
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Company no. 09161277 · Companies House |
| 8 | BakerBrown Lewes | Approach Score 79/100 |
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Company no. 04597504 · Companies House |
| 9 | Marshall Kenny Redhill, Surrey | Approach Score 79/100 |
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Company no. 12226432 · Companies House |
| 10 | STL Architecture Reading A director sits on 4 or more companies | Approach Score 78/100 |
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Company no. 12041439 · Companies House |
| 11 | Ecotecture Shoreham-by-SEA, West Sussex | Approach Score 77/100 |
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Company no. 11114542 · Companies House |
| 12 | Andrews Eades Chartered Surveyors Thame, Oxfordshire | Approach Score 77/100 | We hold older figures than Companies House
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Company no. 06537300 · Companies House |
| 13 | Masker Architects Winchester, Hampshire | Approach Score 77/100 |
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Company no. 12936577 · Companies House |
| 14 | AR Design Studio Winchester | Approach Score 77/100 |
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Company no. 07558087 · Companies House |
| 15 | The Goddard Winchester, Hampshire | Approach Score 76/100 |
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Company no. 11209819 · Companies House |
| 16 | C. Engineering Aston, Oxon | Approach Score 76/100 |
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Company no. 02821714 · Companies House |
| 17 | John Moore Heritage Services Oxford | Approach Score 76/100 |
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Company no. 10019494 · Companies House |
| 18 | Stephen Langer Architects Tunbridge Wells, Kent | Approach Score 75/100 |
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Company no. 04561467 · Companies House |
| 19 | Archer Humphryes Architects Tonbridge, Kent | Approach Score 75/100 |
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Company no. 05853327 · Companies House |
| 20 | Cadplan Services West Malling, Kent | Approach Score 74/100 |
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Company no. 04173755 · Companies House |
| 21 | ADP Architecture Southampton | Approach Score 74/100 | We hold older figures than Companies House
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Company no. 04604714 · Companies House |
| 22 | St.ann's Gate Architects Winchester, Hampshire | Approach Score 74/100 |
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Company no. 13587564 · Companies House |
| 23 | Mulroy Guildford, Surrey | Approach Score 74/100 |
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Company no. 06601900 · Companies House |
| 24 | KDA Designs Milton Keynes, Buckinghamshire | Approach Score 73/100 |
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Company no. 12141336 · Companies House |
| 25 | Jameson Architectural Surveyors Bexhill, East Sussex | Approach Score 73/100 |
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Company no. 07829916 · Companies House |
206 more firms are in the list, in Approach Score order.
You're seeing the first 25. Buy all 231 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.
Buy the list of all 231 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.
What's in the file
One row per firm, in Approach Score order, as Excel + CSV.
It holds the facts behind each score, points for each part of the score, financials with dates, publicly available contact details, where identified, director names and named shareholders.
Some people with significant control appear as Other individual, with no further detail. Director email lookups are not included.
How this list is filtered
- 5 or more staff, from filed headcount or our estimate where none is filed.
- Registered office in the South East.
How this list is built
The Approach Score ranks firms mainly on public Companies House information about owner tenure and age, ownership, size, financial strength and recent register changes.
Firms with higher scores appear first in each list.
Use the ranking to order research, then check each business directly.
What it does not mean
No firm here is for sale, and the score says nothing about any owner's plans.
At least 95% of the firms where we hold directors had them checked in or after November 2026.
What we do not cover
Regulatory information is not included in this list. Buyers should check the relevant register as part of their due diligence. Check individuals on the Architects Registration Board's Architects Register. ARB registers architects across the UK; it does not register practices.
Why age bands but no people's names
Age bands come from the month and year of birth on Companies House. This page shows no exact ages and no people's names. Both come with the purchased list. The band edges from 45 to 65 are the ages where the score changes. A row shows no age bands when a director's surname is in the firm's name, its group's name or its website. Those directors' ages still count towards the score.
Is this your firm?
You can ask us to take it off every acquisition page, and out of every list we sell after that. Give us your name and work email, and we send you a link to confirm. If your email address is on the firm's own website domain, the firm comes off once you confirm. If it is not, a person reviews your request first. A list already sold stays with its buyer.
To have personal data erased, see our privacy policy.
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The standard Firmbase list
Buy the list of all 231 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.