- Company number
- 15312582
- Incorporated
- 28 Nov 20232 years trading
- Registered office
- 13 Tewkesbury Gardens, London, NW9 0QU
- Nature of business
- Construction of domestic buildings
Modern Groundwork Ltd is a 2-year-old private limited company registered in London, company number 15312582, one of 12,075 building contractors in London. Companies House shows its accounts as overdue: they were due on 31 August 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Modern Groundwork LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2024
From the balance sheet at 30 November 2024, as filed at Companies House.
Where Modern Groundwork Ltd is registered
The registered office is in London (NW9), in the Brent local authority area, London. Show NW9 0QU on a map.
Other trade companies in NW9
- KSR & Co. LtdBuilders
- S&M Excavator Hire LtdBuilders
- Autolink Cars LtdMotor traders
- P Auto Motor LtdMechanics and garages
- Euro Car Glass LtdMechanics and garages
- Waely Sons LtdPlumbers and heating engineers
- GM Scaffolding London LtdScaffolders
- Onewais Services LtdCleaning companies
What happens if Modern Groundwork Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2026 to 30 Sep 2026 | £150 |
| 1 to 3 months late | 1 Oct 2026 to 30 Nov 2026 | £375 |
| 3 to 6 months late | 1 Dec 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 30 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2027 | 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
- 15312582
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 November 2023 (2 years ago)
- Registered office
- 13 Tewkesbury Gardens, London, NW9 0QU
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 27 November 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 London
Other active building contractors registered in London.
- Modern Luxury Developments Ltd2023
- Modern Renovations Ltd2025
- Modern Tiles Revolution Ltd2024
- Modular Designs Limited2017
- Modular Express Group Ltd2018
- Modulex Modular Buildings UK Limited2018
- Moenergy Limited2023
- Moet Solutions Ltd2020
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Modern Groundwork Ltd's accounts due?
Modern Groundwork Ltd's accounts were due at Companies House on 31 August 2026 and the register shows them as overdue.
When is Modern Groundwork Ltd's CT600 due?
The CT600 for the period to 30 November 2025 is due at HMRC by 30 November 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2026.
Is Modern Groundwork Ltd still trading?
Modern Groundwork 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 Modern Groundwork Ltd do?
Modern Groundwork Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Modern Groundwork Ltd?
Modern Groundwork Ltd was incorporated on 28 November 2023, 2 years ago.
What is the penalty if Modern Groundwork 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 Modern Groundwork 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.