DONALD INSALL ASSOCIATES LIMITED
Company number 01550406 · Monitor this company
Free AI analysis
Have an AI read this company's filings and write an assessment — financial health, risks, and what the numbers say.
Shareholders' funds
£4,903,595
Balance sheet as at 2025-09-30
What it does
The principal activity of the company and group continues to be operating a practice of Chartered Architects, Historic Building Consultants from offices in London (head office), Birmingham, Chester, Conwy, Manchester, Oxford and York.
The company's own description, from its latest filed accounts.
Overview
- Company type
- Private Limited Company
- Incorporated
- 1981-03-12
- Employees
- 140 (2025 accounts · was 141 in 2024)
- Registered office
- 12 Devonshire Street, London, W1G 7AB
- Postcode
- W1G 7AB
- Capital
- 36,563 GBP
- Accounts category
- Group
Accounts
- Last made up to
- 2025-09-30
- Next due by
- 2027-06-30
- Financial year end
- 30 September
Confirmation statement
- Last statement dated
- 2025-12-31
- Next due by
- 2027-01-14
Nature of business (SIC)
- 71111 Architectural activities
Officers 7 current · 17 resigned
Group structure 2 subsidiaries
-
FARRINGDON LANE LIMITED Dissolved
From persons-with-significant-control filings on the public register.
Public contracts won 6
£175,479,491 total awarded value where published.
Showing the 5 most recent of 6.
Contains public sector information licensed under the Open Government Licence v3.0 (Contracts Finder).
Licensed visa sponsor
Licensed by the Home Office to sponsor worker visas: Skilled Worker (Worker (A rating)).
Matched by registered name to the register of licensed sponsors (Home Office, updated daily) — check the register itself before relying on it. Contains public sector information licensed under the Open Government Licence v3.0.
Data protection registration
Registered with the ICO as a data protection fee payer — Z9967620 (Tier 2), registered since 2007.
Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.
Contact details
- Website
- donaldinsallassociates.co.uk
- Phone
- 01225469898, 01865520170, 02072459888
For over 65 years we have pioneered a creative and pragmatic approach to managing change within the historic environment.
Previous company names
| Name | Date changed |
|---|---|
| DONALD W. INSALL AND ASSOCIATES LIMITED | 1997-01-01 |
| STEEPLELORD LIMITED | 1981-12-31 |
Previous registered addresses 1
| Address | Changed on |
|---|---|
| 19 WEST EATON PLACE, LONDON, SW1X 8LT | 2012-03-07 |
Among its peers
Top 1%
by shareholders' funds, of 529 similar companies in W
2nd largest employer among its local peers (140 staff).
2nd oldest of its local peers, trading since 1981.
No.5 of the largest architectural activities companies in London →
Competitors London
-
4. MAKE LIMITED
This company ranks 5 among architectural activities in London.
The class of 1981
65%
of the 14,492 companies incorporated in 1981 are still active today; 29% have since been dissolved.
A fact about the year, not a forecast for this company.
Property in England & Wales 5 titles
- Freehold
- 1
- Leasehold
- 4
- Most recent registration
- 2024-12-19
- Where
- Oxfordshire (1), Greater London (1), West Midlands (1)
| Title number | County | Tenure | Registered | Price paid |
|---|---|---|---|---|
| ON391165 | Oxfordshire | Leasehold | 2024-12-19 | — |
| BB36426 | Greater London | Leasehold | 2024-10-24 | — |
| MM113109 | West Midlands | Leasehold | 2018-10-12 | — |
| ST320067 | Bath And North East Somerset | Leasehold | 2015-04-24 | — |
| CYM500688 | Conwy | Freehold | 2010-07-23 | — |
For addresses and the authoritative register entry, use HM Land Registry's official search (£3 per title).
Information produced by HM Land Registry. © Crown copyright 2026. Dataset as at 2026-08.