- Companies
- Specialist contractors
- Ivybridge
- Diamond Drainage Limited
Diamond Drainage Limited
- Company number
- 17002161
- Incorporated
- 30 Jan 2026
- Registered office
- Unit 8 Bowker House, Lee Mill Bridge, Ivybridge, PL21 9EF
- Nature of business
- Other specialised construction activities n.e.c.
Diamond Drainage Limited is a newly incorporated private limited company registered in Ivybridge, company number 17002161, one of 16 specialist construction companies in Ivybridge. Its next accounts are due at Companies House on 30 October 2027, and its first CT600 is due at HMRC on 29 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Diamond Drainage Limited is registered
The registered office is in Ivybridge (PL21), in the South Hams local authority area, South West. Show PL21 9EF on a map.
Other trade companies in PL21
- MPS Property Developments SW LimitedMachinery repair and installation
- Vertex Climate LtdPlumbers and heating engineers
- Elmwood House Construction LtdBuilders
- HBF Power Solutions LtdCivil engineering
- MPGS Landscaping LimitedLandscapers and gardeners
- South Hams Bathroom Installations LimitedPlumbers and heating engineers
- Kearleys Plastering & Rendering LtdPlasterers
- Plymouth Catering Engineer LimitedMachinery repair and installation
Shared registered office
71 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 Diamond Drainage 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Oct 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 30 Jan 2028 | £375 |
| 3 to 6 months late | 31 Jan 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 17002161
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 January 2026
- Registered office
- Unit 8 Bowker House, Lee Mill Bridge, Ivybridge, PL21 9EF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 4 August 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Ivybridge
Other active specialist construction companies registered in Ivybridge.
- DJ Property Services SW Ltd2026
- DNR Fire Protection Ltd2025
- Drains & Tank Services Ltd2024
- Drains & Tank Solutions Southwest Ltd2023
- Eco NRG Ltd2009
- Emrock & Co. Ltd2001
- Exelets Ltd2021
- Liftsafe SW Ltd2026
All specialist construction companies in Ivybridge · All trades in Ivybridge · Specialist contractors across the UK
Frequently asked questions
When are Diamond Drainage Limited's accounts due?
Diamond Drainage Limited's next accounts are due at Companies House by 30 October 2027 (in 382 days), covering the period to 31 January 2027.
When is Diamond Drainage 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 29 January 2027, due by 29 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Diamond Drainage Limited still trading?
Diamond Drainage 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 Diamond Drainage Limited do?
Diamond Drainage Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Diamond Drainage Limited?
Diamond Drainage Limited was incorporated on 30 January 2026, less than a year ago.
What is the penalty if Diamond Drainage 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 Diamond Drainage 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.