- Companies
- Civil engineering
- Gravesend
- Sian Formwork Limited
Sian Formwork Limited
- Company number
- 04759389
- Incorporated
- 9 May 200323 years trading
- Registered office
- Sian Formwork Limited Stonebridge Road, Northfleet, Gravesend, Kent, DA11 9BA
- Nature of business
- Construction of other civil engineering projects n.e.c.; Other specialised construction activities n.e.c.; Engineering related scientific and technical consulting activities; Other engineering activities
Sian Formwork Limited is a 23-year-old private limited company registered in Gravesend, company number 04759389, one of 86 civil engineering contractors in Gravesend. Its next accounts are due at Companies House on 29 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 down £567K (-13.3%) on the year before, to £3.7M.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £7.6M against £4.5M owed within a year: 1.7 times cover.
- 30 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | £3.7M | £1.9M | £7.6M | £4.5M | 30 |
| 31 Oct 2023 | £4.3M | £1.5M | £7.1M | £3.5M | 30 |
| 31 Oct 2022 | £3.5M | £2.8M | £8.1M | £3.3M | 30 |
| 31 Oct 2021 | £2M | £2.8M | £8.6M | £4.9M | 36 |
| 31 Oct 2020 | £2.3M | £2.5M | £8M | £4.3M | 11 |
| 31 Oct 2019 | £3.6M | £3.5M | £7M | £2.5M | 8 |
| 31 Oct 2018 | £3.4M | £3.1M | £6.2M | £1.9M | |
| 31 Oct 2017 | £3.2M | £3M | £5.6M | £1.4M | |
| 31 Oct 2016 | £2.9M | £2.1M | £3.3M | £655K | |
| 31 Oct 2015 | £2.7M | £970K | £3.2M | £770K |
Where Sian Formwork Limited is registered
The registered office is in Gravesend (DA11), in the Gravesham local authority area, South East. Show DA11 9BA on a map.
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What happens if Sian Formwork 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 29 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Oct 2026 to 29 Nov 2026 | £150 |
| 1 to 3 months late | 30 Nov 2026 to 29 Jan 2027 | £375 |
| 3 to 6 months late | 30 Jan 2027 to 29 Apr 2027 | £750 |
| More than 6 months late | From 30 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Jan 2027 | £200 |
| 3 months late | 29 Apr 2027 | another £200 |
| 6 months late | 29 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Jan 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
- 04759389
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 May 2003 (23 years ago)
- Registered office
- Sian Formwork Limited Stonebridge Road, Northfleet, Gravesend, Kent, DA11 9BA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Other specialised construction activities n.e.c. (SIC 43999)
Engineering related scientific and technical consulting activities (SIC 71122)
Other engineering activities (SIC 71129) - Year end
- 30 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 10 July 2026
- Charges (mortgages)
- 5 outstanding of 5 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Gravesend
Other active civil engineering contractors registered in Gravesend.
- Singlewell Contracting Ltd2023
- Streamline Construction Kent Limited2026
- T&E Electrical Distribution Ltd2025
- T&S Telecoms Limited2026
- T-Teemy Limited2019
- Taracal Limited2019
- Theobalds (Refurbishment) Limited2009
- Thushan Eng Ltd2019
All civil engineering contractors in Gravesend · All trades in Gravesend · Civil engineering across the UK
Frequently asked questions
When are Sian Formwork Limited's accounts due?
Sian Formwork Limited's next accounts are due at Companies House by 29 October 2026 (in 17 days), covering the period to 29 January 2026.
When is Sian Formwork Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 29 January 2026, due by 29 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sian Formwork Limited still trading?
Sian Formwork 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 Sian Formwork Limited do?
Sian Formwork Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Other specialised construction activities n.e.c. (SIC 43999); Engineering related scientific and technical consulting activities (SIC 71122); Other engineering activities (SIC 71129).
How old is Sian Formwork Limited?
Sian Formwork Limited was incorporated on 9 May 2003, 23 years ago.
What is the penalty if Sian Formwork 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 Sian Formwork 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.