- Company number
- 05314368
- Incorporated
- 16 Dec 200421 years trading
- Registered office
- 70 Bounces Road, London, N9 8JS
- Nature of business
- Construction of domestic buildings
DSM Brickwork Ltd is a 21-year-old private limited company registered in London, company number 05314368, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 19 June 2027, and the CT600 for the period to 19 September 2026 is due at HMRC on 19 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £4,964 (+17.6%) on the year before, to -£23K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £6,958 against £34K owed within a year: 0.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 20 Sep 2025 | -£23K | £1,818 | £6,958 | £34K | 0 |
| 20 Sep 2024 | -£28K | £607 | £5,417 | £39K | 0 |
| 20 Sep 2023 | -£3,860 | £359 | £8,259 | £18K | 0 |
| 20 Sep 2022 | -£9,980 | £2,835 | £8,315 | £17K | 0 |
| 20 Sep 2021 | -£15K | £853 | £22K | £20K | 0 |
| 30 Sep 2020 | £3,893 | £22K | £29K | £16K | 0 |
| 21 Sep 2020 | £3,893 | £22K | £29K | £16K | 0 |
| 30 Sep 2019 | -£57 | £3,719 | £6,825 | £9,278 | |
| 30 Sep 2018 | £792 | £535 | £3,241 | £8,923 | |
| 30 Sep 2017 | £425 | £2,822 | £5,689 | £11K |
Who runs and owns DSM Brickwork Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| D*** M*** | Director | Dec 2004 |
| J*** M*** | Secretary | Dec 2004 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| Duport Secretary Limited | Corporate Nominee Secretary | Dec 2004 | Dec 2004 |
| Duport Director Limited | Nominee director (company) | Dec 2004 | Dec 2004 |
Person with significant control
Charges (secured borrowing)
1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| National Westminster Bank PLC | Outstanding | Jan 2006 |
Where DSM Brickwork Ltd is registered
The registered office is in London (N9), in the Enfield local authority area, London. Show N9 8JS on a map.
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- Enfield Mobile Diagnostics LtdMechanics and garages
- Charlie Valentin LtdCleaning companies
Shared registered office
98 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if DSM Brickwork Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 19 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Jun 2027 to 19 Jul 2027 | £150 |
| 1 to 3 months late | 20 Jul 2027 to 19 Sep 2027 | £375 |
| 3 to 6 months late | 20 Sep 2027 to 19 Dec 2027 | £750 |
| More than 6 months late | From 20 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 20 Sep 2027 | £200 |
| 3 months late | 19 Dec 2027 | another £200 |
| 6 months late | 19 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 19 Sep 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 05314368
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 December 2004 (21 years ago)
- Registered office
- 70 Bounces Road, London, N9 8JS
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 19 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 20 September 2025
- Last confirmation statement
- 16 December 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- DSN Construction Ltd2013
- Dsrepairs London Ltd2023
- DSSP Vicol Ltd2017
- DSSS12 Limited2020
- DT Quality Construction Ltd2016
- DTD Building Ltd2020
- DTG Inc Limited2011
- DTM Interiors Ltd2008
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are DSM Brickwork Ltd's accounts due?
DSM Brickwork Ltd's next accounts are due at Companies House by 19 June 2027 (in 250 days), covering the period to 19 September 2026.
When is DSM Brickwork Ltd's CT600 due?
The CT600 for the period to 19 September 2026 is due at HMRC by 19 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 20 June 2027.
Is DSM Brickwork Ltd still trading?
DSM Brickwork Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does DSM Brickwork Ltd do?
DSM Brickwork Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is DSM Brickwork Ltd?
DSM Brickwork Ltd was incorporated on 16 December 2004, 21 years ago.
Who runs DSM Brickwork Ltd?
DSM Brickwork Ltd has 1 active director, the longest-serving appointed in Dec 2004. Their names and service addresses are on the Companies House register.
Who owns DSM Brickwork Ltd?
One person or company has significant control of DSM Brickwork Ltd: an individual (owns 75% or more of the shares).
What is the penalty if DSM Brickwork Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View DSM Brickwork Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.