- Companies
- Finishing trades
- London
- Rockbourne Construction Ltd
Rockbourne Construction Ltd
- Company number
- 12046470
- Incorporated
- 12 Jun 20197 years trading
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Other building completion and finishing
Rockbourne Construction Ltd is a 7-year-old private limited company registered in London, company number 12046470, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £5,308 on the year before, to £5,502.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £4,585 against £2,377 owed within a year: 1.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £5,502 | £73 | £4,585 | £2,377 | 1 |
| 30 Apr 2024 | £194 | £2,010 | £6,289 | £10K | 1 |
| 30 Apr 2023 | £0 | £0 | £0 | 0 | |
| 30 Jun 2022 | £16K | £20K | £7,509 | 1 | |
| 30 Jun 2021 | £30K | £33K | £6,914 | 2 | |
| 30 Jun 2020 | £16K | £17K | £6,790 | 1 |
Where Rockbourne Construction Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
Other trade companies in N1
- Tagwise LtdSpecialist contractors
- Sphere Aviation Solutions UK LtdMachinery repair and installation
- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
- Fleetstone Trading LtdMotor traders
- Kenneth Brady LtdElectricians
- UK Import Export LtdBuilders
- Magic Door Services LimitedMachinery repair and installation
Shared registered office
1,583 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 Rockbourne 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 31 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 12046470
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 June 2019 (7 years ago)
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 9 May 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Rocky's Construction Ltd2021
- Rodof Maintenance Ltd2019
- Rody Building & Decorating Ltd2006
- Rojline Ltd2025
- Roland Woodward Limited2005
- Roni Construction Ltd2023
- Roof 2 Roof Roofing Ltd2021
- Rose Interiors Ltd2023
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Rockbourne Construction Ltd's accounts due?
Rockbourne Construction Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Rockbourne Construction Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Rockbourne Construction Ltd still trading?
Rockbourne Construction Ltd 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 Rockbourne Construction Ltd do?
Rockbourne Construction Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Rockbourne Construction Ltd?
Rockbourne Construction Ltd was incorporated on 12 June 2019, 7 years ago.
What is the penalty if Rockbourne 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 Rockbourne Construction Ltd 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.