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- Rockmere Development Group Ltd
Company profile · Property developers
Rockmere Development Group Ltd
Rockmere Development Group Ltd is a 1-year-old private limited company registered in London, company number 16603179, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 24 April 2027, and its first CT600 is due at HMRC on 23 July 2027.
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 Rockmere Development Group Ltd is registered
The registered office is in London (W9), in the Westminster local authority area, London. Show W9 3PR on a map.
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What happens if Rockmere Development Group 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 24 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Apr 2027 to 24 May 2027 | £150 |
| 1 to 3 months late | 25 May 2027 to 24 Jul 2027 | £375 |
| 3 to 6 months late | 25 Jul 2027 to 24 Oct 2027 | £750 |
| More than 6 months late | From 25 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16603179
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 July 2025 (1 year ago)
- Registered office
- 5 Elgin Avenue, London, England, W9 3PR
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 9 February 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Rockstar Homes Ltd2024
- Rockstone Refurbishments Ltd2010
- Rocktower Homes Ltd2015
- Rockwell Capital Group Ltd2025
- Rockwell Hurlingham Limited2021
- Rockwell Project Management Limited2021
- Rockwell Properties Limited2015
- Rocky Industries Ltd2020
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Rockmere Development Group Ltd's accounts due?
Rockmere Development Group Ltd's next accounts are due at Companies House by 24 April 2027 (in 194 days), covering the period to 31 July 2026.
When is Rockmere Development Group 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 23 July 2026, due by 23 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Rockmere Development Group Ltd still trading?
Rockmere Development Group 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 Rockmere Development Group Ltd do?
Rockmere Development Group Ltd is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999); Other letting and operating of own or leased real estate (SIC 68209).
How old is Rockmere Development Group Ltd?
Rockmere Development Group Ltd was incorporated on 24 July 2025, 1 year ago.
What is the penalty if Rockmere Development Group 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 Rockmere Development Group 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.