- Company number
- 15956982
- Incorporated
- 15 Sep 20242 years trading
- Registered office
- 65 Meadow Croft, Hatfield, AL10 0SG
- Nature of business
- Construction of domestic buildings
Diar Complete Construction Ltd is a 2-year-old private limited company registered in Hatfield, company number 15956982, one of 112 building contractors in Hatfield. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 September 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Diar Complete Construction Ltd is registered
The registered office is in Hatfield (AL10), in the Welwyn Hatfield local authority area, East of England. Show AL10 0SG on a map.
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What happens if Diar Complete Construction 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 15956982
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 September 2024 (2 years ago)
- Registered office
- 65 Meadow Croft, Hatfield, AL10 0SG
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 14 September 2025
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 Hatfield
Other active building contractors registered in Hatfield.
- Dida Decorators Limited2020
- DPL Building Ltd2026
- DRP Construction Ltd2026
- Dutt Designs Ltd2020
- Dynamo Brickwork Ltd2017
- East Herts Developments Limited2016
- Ecotek Building Limited2012
- Ecton Engineering Ltd2025
All building contractors in Hatfield · All trades in Hatfield · Builders across the UK
Frequently asked questions
When are Diar Complete Construction Ltd's accounts due?
Diar Complete Construction Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Diar Complete Construction Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Diar Complete Construction Ltd still trading?
Diar Complete Construction Ltd is listed as active on the Companies House register (checked 12 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 Diar Complete Construction Ltd do?
Diar Complete Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Diar Complete Construction Ltd?
Diar Complete Construction Ltd was incorporated on 15 September 2024, 2 years ago.
What is the penalty if Diar Complete Construction 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 Diar Complete Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.