£194k
−7%vs Mar 2025Active04420926Private limited companyLondon
OPEN BUILDING SYSTEMS LTD
B77/10001
Summary
OPEN BUILDING SYSTEMS LTD is an active private limited company (company number 04420926) incorporated on 19 April 2002, registered in London. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest small accounts cover the period ending 31 March 2026, showing net assets of £194k and cash of £203k, with 6 employees on average. Net assets fell 7% on the prior period (£208k). Across the last 3 periods on record the net-asset trend is falling.
Peer position · net assets
By net assets it sits in the top quarter of 3,480 comparable companies in London (median £3,158, upper quartile £26k).
02
Key dates
- Incorporated
- 19 April 200224 yrs ago
- Next accounts due
- 31 December 2027in 435 days
- Confirmation statement due
- 3 May 2027in 193 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
03
Activity
- SIC 43999
- Other specialised construction activities n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
04
Financials
£203k
+91%vs Mar 2025Not reported
6
No changevs Mar 2025| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2026 | £194k | £203k | £67k | — | — | — | 6 |
| 31 March 2025 | £208k | £106k | £292k | — | — | — | 6 |
| 31 March 2024 | £236k | £85k | £498k | — | — | — | 6 |
Cash per employee£34kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
05
Firmoscan score
77 / 100 · grade B
| 50 | Starting scoreEvery scored company starts here |
| +10 | Positive net assetsNet assets £194,196 at 2026-03-31 |
| +4 | Cash reservesCash £202,782 |
| +5 | Multi-year filing history3 periods on record |
| +8 | EstablishedIncorporated 2002-04-19 (24 years) |
| 77 | Score, grade B |
A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice. How the score is computed.
06
Ownership and control
- Mr Andrew Robert Dutton
- owns 25–50% of shares
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
07
Timeline
- Next accounts duein 435 days
- Confirmation statement duein 193 days
- Accounts period endNet assets £194k · small accounts
- Accounts period endNet assets £208k · small accounts
- Accounts period endNet assets £236k · small accounts
- Incorporated
08
Similar companies in London
- ENVIRONMENTAL DECONTAMINATION EUROPE LIMITEDLondon · inc. Apr 2002
- GRADON CONSTRUCTION LTDLondon · inc. Apr 2002
- SPORTS MAINTENANCE SERVICES LIMITEDLondon · inc. Apr 2002
- REVO FACILITIES SERVICES LIMITEDLondon · inc. Apr 2002
- MONAGHAN BRICKWORK LTDLondon · inc. Apr 2002
- UNITED MEDIA (UK) LIMITEDLondon · inc. May 2002
All companies incorporated on 19 April 2002 · in Apr 2002.
09
Reminders for OPEN BUILDING SYSTEMS LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.