- Companies
- Property developers
- Southsea
- Rockbow Ltd
Rockbow Ltd
- Company number
- 10606755
- Incorporated
- 7 Feb 20179 years trading
- Registered office
- 20 Cadnam Road, Southsea, PO4 9JT
- Nature of business
- Development of building projects; Other building completion and finishing
Rockbow Ltd is a 9-year-old private limited company registered in Southsea, company number 10606755, one of 39 property development companies in Southsea. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
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 Rockbow 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.
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 £14K (+328.1%) on the year before, to £19K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £16K against £17K owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £19K | £16K | £17K | 1 | |
| 31 May 2024 | £4,404 | £1,286 | £5,690 | 1 | |
| 31 May 2023 | £13K | £13K | 1 | ||
| 31 May 2022 | £12K | £12K | 1 | ||
| 31 May 2021 | £26K | £0 | £26K | 1 | |
| 31 May 2020 | £32K | £47K | £15K | 1 | |
| 28 Feb 2019 | £4,571 | £8,554 | £3,983 | ||
| 28 Feb 2018 | £1 | £1 |
Where Rockbow Ltd is registered
The registered office is in Southsea (PO4), in the Portsmouth local authority area, South East. Show PO4 9JT on a map.
Other trade companies in PO4
- Prestiige LtdMechanics and garages
- Portsea Homes LimitedProperty developers
- Elite Building Services (Portsmouth) LtdBuilders
- G Form Drylining LimitedPlasterers
- Solent Sales Haulage & Storage LtdMotor traders
- Koko Construction LtdBuilders
- Chase RCS LtdCivil engineering
- Proper Job Handyman LtdFinishing trades
What happens if Rockbow 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10606755
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2017 (9 years ago)
- Registered office
- 20 Cadnam Road, Southsea, PO4 9JT
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 28 November 2025
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 Southsea
Other active property development companies registered in Southsea.
- Serene Property Ltd2017
- South Parade Pier Ltd2014
- STML Electrical Services Limited2023
- TW Assets Ltd2009
- 3S and D Limited2003
- Ab Business Systems Limited2012
- Accurate Construction Limited2017
- Alington Estates Limited1955
All property development companies in Southsea · All trades in Southsea · Property developers across the UK
Frequently asked questions
When are Rockbow Ltd's accounts due?
Rockbow Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Rockbow Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Rockbow Ltd still trading?
Rockbow 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 Rockbow Ltd do?
Rockbow Ltd is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390).
How old is Rockbow Ltd?
Rockbow Ltd was incorporated on 7 February 2017, 9 years ago.
What is the penalty if Rockbow 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 Rockbow 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.