BY DEVELOPMENT LIMITED
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Cash
£1.1m
+1.3% vs 2024
Net assets
£691k
-39.1% lowest in 3 filed years
Employees
0
Average over period
Profit before tax
-£606k
-108.1% lowest in 3 filed years
Watchouts
Facts from the Companies House register and the latest accounts — not a rating
-
Material uncertainty over going concern
The Company has a net current liabilities position as at 31 December 2025 and is dependent on the support of its parent undertaking Bouygues (U.K.) Limited ("Bouygues UK"), which has provided written confirmation of financial support for the period up to 31 July 2027.
-
Going-concern uncertainty disclosed
Net assets
3-year trend · vs Industrials median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 | 2025-12-31 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £71,412,000 | £93,430,000 | £77,699,000 | -16.8% | |
| Operating profit | £3,765,000 | £7,517,000 | -£127,000 | -101.7% | |
| Profit before tax | £10,839,000 | £7,524,000 | -£606,000 | -108.1% | |
| Net profit | £10,745,000 | £6,953,000 | -£444,000 | -106.4% | |
| Cash | £1,318,000 | £1,056,000 | £1,070,000 | +1.3% | |
| Total assets less current liabilities | £1,193,000 | £1,135,000 | £691,000 | -39.1% | |
| Net assets | £1,182,000 | £1,135,000 | £691,000 | -39.1% | |
| Equity | £1,182,000 | £1,135,000 | £691,000 | -39.1% | |
| Average employees | 0 | 0 | 0 | — | |
| Wages | — | — | — | — | |
| Directors' remuneration | £0 | £0 | — | — | |
| Directors' pension contributions | £0 | £0 | — | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show —. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 | 2025-12-31 |
|---|---|---|---|---|
| Operating margin | 5.3% | 8.0% | -0.2% | |
| Net margin | 15.0% | 7.4% | -0.6% | |
| Return on capital employed | 315.6% | 662.3% | -18.4% | |
| Gearing (liabilities / total assets) | 97.6% | 97.9% | 98.5% | |
| Current ratio | 0.73x | 0.71x | 0.61x | |
| Interest cover | 34.86x | — | — |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 1 time since incorporation
- BY DEVELOPMENT LIMITED 2009-06-18 → present
- BY DEVELOPMENT (DAGENHAM LIBRARY) LTD 2008-04-17 → 2009-06-18
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Ernst & Young LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Material uncertainty disclosed
“The Company has a net current liabilities position as at 31 December 2025 and is dependent on the support of its parent undertaking Bouygues (U.K.) Limited ("Bouygues UK"), which has provided written confirmation of financial support for the period up to 31 July 2027.”
Group structure
- BY DEVELOPMENT LIMITED · parent
- Hallmark - BY Development Limited 100%
- BYD CR Holdco Ltd 100%
- Hallsville Quarter 4 Limited 100%
- Hallsville Quarter (Phase 2) Residents Company Ltd 100%
- Hallsville Management Company Ltd 80%
- Essex 3 Limited 100%
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 20 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| SHEARS, Charissa Jane | Secretary | 2024-08-01 | — | — |
| BERNARD, Philippe Laurent | Director | 2025-02-01 | Oct 1969 | French |
| CALAIS, Julien Didier | Director | 2025-07-01 | Jul 1978 | French |
| CAMPBELL, Oliver David Andres | Director | 2024-11-07 | Jan 1977 | British |
Show 20 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| CHILD, Amanda | Secretary | 2016-04-18 | 2024-07-31 |
| CLAYTON, Brian | Secretary | 2013-08-20 | 2016-04-18 |
| PIERCE, David William | Secretary | 2008-04-17 | 2013-08-20 |
| ABSON, Paul | Director | 2013-01-18 | 2016-07-31 |
| BOUTROLLE, Axel Francois Cornelis | Director | 2018-09-03 | 2023-01-31 |
| BRADLEY, Robert Keith | Director | 2020-08-31 | 2023-10-01 |
| CHRISTOLOMME, Lionel Marie Michel | Director | 2008-04-17 | 2018-07-18 |
| CRILLON, Olivier | Director | 2015-07-24 | 2018-07-18 |
| DE SEVERAC, Thierry | Director | 2008-04-17 | 2009-12-16 |
| GUERIN, Nicolas Alexandre Pierre | Director | 2012-09-10 | 2020-08-27 |
| HYDE, Stephen Anthony | Director | 2013-01-18 | 2014-08-26 |
| JOUY, Philippe Daniel, Jacques | Director | 2010-02-15 | 2015-07-24 |
| MIDENA, Jean-Luc | Director | 2018-08-28 | 2023-10-03 |
| PRONGUÉ, Phillippa Jane Wilton | Director | 2022-06-01 | 2024-11-07 |
| ROUX, Thibaut Maxime | Director | 2023-10-02 | 2025-08-01 |
| SLAMA-ROYER, Stephane | Director | 2009-02-23 | 2012-09-24 |
| SOULIER, Olivier | Director | 2018-09-03 | 2019-11-03 |
| SOW, Madani | Director | 2009-12-08 | 2016-01-26 |
| TATTON, Craig Nicholas | Director | 2014-08-26 | 2017-06-29 |
| VIALA, Fabienne Paule | Director | 2016-05-02 | 2025-02-01 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Bouygues (U.K.) Ltd | Corporate entity | Shares 75–100%, Voting 75–100% | 2016-04-06 | Active |
Filing timeline
Last 20 of 125 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-08-19 | AA | accounts | Accounts with accounts type full | |
| 2026-04-17 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-09-15 | AA | accounts | Accounts with accounts type full | |
| 2025-09-04 | CH01 | officers | Change person director company with change date | |
| 2025-08-04 | TM01 | officers | Termination director company with name termination date | |
| 2025-07-03 | AP01 | officers | Appoint person director company with name date | |
| 2025-04-17 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-02-04 | AP01 | officers | Appoint person director company with name date | |
| 2025-02-04 | TM01 | officers | Termination director company with name termination date | |
| 2024-11-08 | AP01 | officers | Appoint person director company with name date | |
| 2024-11-08 | TM01 | officers | Termination director company with name termination date | |
| 2024-08-02 | AP03 | officers | Appoint person secretary company with name date | |
| 2024-08-02 | TM02 | officers | Termination secretary company with name termination date | |
| 2024-07-26 | AA | accounts | Accounts with accounts type full | |
| 2024-05-15 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2024-05-15 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2024-04-15 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-04-15 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-10-06 | TM01 | officers | Termination director company with name termination date | |
| 2023-10-06 | AP01 | officers | Appoint person director company with name date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 4
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.