- Company number
- 16168059
- Incorporated
- 7 Jan 20251 year trading
- Registered office
- 17 Barons Court Road, London, W14 9DP
- Nature of business
- Construction of domestic buildings; Other construction installation; Joinery installation
Denn Builders Ltd is a 1-year-old private limited company registered in London, company number 16168059, one of 12,075 building contractors in London. Companies House shows its accounts as overdue: they were due on 7 October 2026.
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 Denn Builders Ltd is registered
The registered office is in London (W14), in the Hammersmith and Fulham local authority area, London. Show W14 9DP on a map.
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Also registered at this address
20 other companies use the same registered office as Denn Builders Ltd.
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What happens if Denn Builders Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Oct 2026 to 7 Nov 2026 | £150 |
| 1 to 3 months late | 8 Nov 2026 to 7 Jan 2027 | £375 |
| 3 to 6 months late | 8 Jan 2027 to 7 Apr 2027 | £750 |
| More than 6 months late | From 8 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 16168059
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 January 2025 (1 year ago)
- Registered office
- 17 Barons Court Road, London, W14 9DP
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290)
Joinery installation (SIC 43320) - Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 6 January 2026
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 London
Other active building contractors registered in London.
- Dennis Rose Ltd2026
- Denspeed Ltd2022
- Dental Design and Build Limited2026
- Denvav Limited2026
- Denzil & Co Limited2021
- Deons Construction Ltd2025
- Depa Property Services Ltd2024
- Deqory Ltd2020
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Denn Builders Ltd's accounts due?
Denn Builders Ltd's accounts were due at Companies House on 7 October 2026 and the register shows them as overdue.
When is Denn Builders Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 6 January 2026, due by 6 January 2027, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Denn Builders Ltd still trading?
Denn Builders 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 Denn Builders Ltd do?
Denn Builders Ltd is registered under Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290); Joinery installation (SIC 43320).
How old is Denn Builders Ltd?
Denn Builders Ltd was incorporated on 7 January 2025, 1 year ago.
What is the penalty if Denn Builders 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 Denn Builders 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.