- Companies
- Finishing trades
- Simpson Brickwork Conservation Limited
Simpson Brickwork Conservation Limited
- Company number
- 04655409
- Incorporated
- 4 Feb 200323 years trading
- Registered office
- Wellesley House, Duke of Wellington Avenue, Royal Arsenal, London, SE18 6SS
- Nature of business
- Other building completion and finishing
Simpson Brickwork Conservation Limited is a 23-year-old private limited company registered in Royal Arsenal, company number 04655409, one of the UK's building finishing companies. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £21K (+7.4%) on the year before, to £310K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £360K against £96K owed within a year: 3.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £310K | £141K | £360K | £96K | 0 |
| 31 Mar 2024 | £289K | £156K | £322K | £68K | 5 |
| 31 Mar 2023 | £306K | £196K | £375K | £85K | 5 |
| 31 Mar 2022 | £350K | £257K | £494K | £169K | 2 |
| 31 Mar 2021 | £211K | £244K | £438K | £239K | 2 |
| 31 Mar 2020 | £144K | £324K | £186K | 2 | |
| 31 Mar 2019 | £55K | £181K | £131K | ||
| 31 Mar 2018 | £68K | £181K | £120K | ||
| 31 Mar 2017 | £73K | £142K | £77K | ||
| 31 Mar 2016 | £85K | £108K | £34K |
Where Simpson Brickwork Conservation Limited is registered
The registered office is in Royal Arsenal (SE18), in the Greenwich local authority area, London. Show SE18 6SS on a map.
Other trade companies in SE18
- Anandsingh LtdBuilders
- Hma Building Services LimitedFinishing trades
- JWJ Road Services LtdCleaning companies
- MK Construction Work LtdBuilders
- Armandopro LimitedBuilders
- Flynn Afghanistan Construction LtdBuilders
- Cleo Clean LtdCleaning companies
- Lutah Electrical LtdElectricians
Shared registered office
38 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 Simpson Brickwork Conservation Limited 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 04655409
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 February 2003 (23 years ago)
- Registered office
- Wellesley House, Duke of Wellington Avenue, Royal Arsenal, London, SE18 6SS
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 2 January 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies
Other active building finishing companies.
Frequently asked questions
When are Simpson Brickwork Conservation Limited's accounts due?
Simpson Brickwork Conservation Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Simpson Brickwork Conservation Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Simpson Brickwork Conservation Limited still trading?
Simpson Brickwork Conservation Limited 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 Simpson Brickwork Conservation Limited do?
Simpson Brickwork Conservation Limited is registered under Other building completion and finishing (SIC 43390).
How old is Simpson Brickwork Conservation Limited?
Simpson Brickwork Conservation Limited was incorporated on 4 February 2003, 23 years ago.
What is the penalty if Simpson Brickwork Conservation Limited 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 Simpson Brickwork Conservation Limited 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.