- Companies
- Groundworks and demolition
- Ipswich
- S Diaper Contracts Limited
S Diaper Contracts Limited
- Company number
- 05643666
- Incorporated
- 2 Dec 200520 years trading
- Registered office
- Fitzroy House, Crown Street, Ipswich, Suffolk, IP1 3LG
- Nature of business
- Site preparation
S Diaper Contracts Limited is a 20-year-old private limited company registered in Ipswich, company number 05643666, one of 16 groundworks and demolition companies in Ipswich. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £805 (+2.1%) on the year before, to £39K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £17K against £18K owed within a year: 0.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £39K | £17K | £18K | 0 | |
| 31 Dec 2024 | £38K | £14K | £20K | 2 | |
| 31 Dec 2023 | £44K | £11K | £23K | 2 | |
| 31 Dec 2022 | £48K | £40K | £38K | 2 | |
| 31 Dec 2021 | £64K | £37K | £30K | 2 | |
| 31 Dec 2020 | £53K | £45K | £68K | £31K | 2 |
| 31 Dec 2019 | £44K | £11K | £25K | £23K | |
| 31 Dec 2018 | £32K | £9,365 | £22K | £28K | |
| 31 Dec 2017 | £26K |
Who runs and owns S Diaper Contracts Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (3)
| Name | Role | Appointed |
|---|---|---|
| J*** D*** | Director | Dec 2005 |
| S*** D*** | Director | Dec 2005 |
| J*** D*** | Secretary | Dec 2005 |
People with significant control (2)
Where S Diaper Contracts Limited is registered
The registered office is in Ipswich (IP1), in the Ipswich local authority area, East of England. Show IP1 3LG on a map.
Other trade companies in IP1
- Youngs Cabling LtdInstallers
- Tendring Home Solutions LtdFinishing trades
- Ebiavi Painting and Decorating LtdPainters and decorators
- Pro Build Care LtdFinishing trades
- One Stop Construction LtdBuilders
- Ra & MJ Fellgett LtdMachinery repair and installation
- Ortan Ems (Engineering & Marine Services) LtdMachinery repair and installation
- Affordable Road Planings LimitedCivil engineering
Shared registered office
37 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 S Diaper Contracts 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05643666
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 December 2005 (20 years ago)
- Registered office
- Fitzroy House, Crown Street, Ipswich, Suffolk, IP1 3LG
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 2 December 2025
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Ipswich
Other active groundworks and demolition companies registered in Ipswich.
- Suffolk Asbestos Solutions Limited2022
- Tyler Mullett TM Ltd2025
- Ukdk Clearances Ltd2026
- Universal Engineers1313 Limited2023
- C Grimsey Highways Ltd2024
- Central Diamond Services Ltd2006
- D&D Driver Ltd2026
- Dolsi TM Ltd2024
All groundworks and demolition companies in Ipswich · All trades in Ipswich · Groundworks and demolition across the UK
Frequently asked questions
When are S Diaper Contracts Limited's accounts due?
S Diaper Contracts Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is S Diaper Contracts Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is S Diaper Contracts Limited still trading?
S Diaper Contracts 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 S Diaper Contracts Limited do?
S Diaper Contracts Limited is registered under Site preparation (SIC 43120).
How old is S Diaper Contracts Limited?
S Diaper Contracts Limited was incorporated on 2 December 2005, 20 years ago.
Who runs S Diaper Contracts Limited?
S Diaper Contracts Limited has 2 active directors, the longest-serving appointed in Dec 2005. Their names and service addresses are on the Companies House register.
Who owns S Diaper Contracts Limited?
2 people or companies have significant control of S Diaper Contracts Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if S Diaper Contracts 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 S Diaper Contracts 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.