- Companies
- Builders
- Southampton
- Blue Sky Developing Limited
Blue Sky Developing Limited
- Company number
- 09518162
- Incorporated
- 31 Mar 201511 years trading
- Registered office
- Tagus House, 9 Ocean Way, Southampton, Hampshire, SO14 3TJ
- Nature of business
- Construction of domestic buildings
Blue Sky Developing Limited is a 11-year-old private limited company registered in Southampton, company number 09518162, one of 491 building contractors in Southampton. Companies House shows its accounts as overdue: they were due on 29 March 2026.
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 £117K (+161.6%) on the year before, to £189K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £753K against £585K owed within a year: 1.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2016 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 29 Mar 2024 | £189K | £4,891 | £753K | £585K | 2 |
| 29 Mar 2023 | £72K | £132K | £546K | £486K | 2 |
| 29 Sep 2021 | £2,869 | £3,639 | £178K | £189K | 0 |
| 29 Sep 2020 | £664 | £9,490 | £51K | £52K | 0 |
| 30 Sep 2019 | £2,394 | £100 | £156K | £156K | |
| 30 Sep 2018 | £1,100 | £3,898 | £116K | £117K | |
| 30 Sep 2017 | £1,744 | £13K | £111K | £111K | |
| 31 Mar 2016 | £100 | £100 |
Where Blue Sky Developing Limited is registered
The registered office is in Southampton (SO14), in the Southampton local authority area, South East. Show SO14 3TJ on a map.
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Shared registered office
83 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 Blue Sky Developing Limited files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Mar 2026 to 29 Apr 2026 | £150 |
| 1 to 3 months late | 30 Apr 2026 to 29 Jun 2026 | £375 |
| 3 to 6 months late | 30 Jun 2026 to 29 Sep 2026 | £750 |
| More than 6 months late | From 30 Sep 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Jun 2026 | £200 |
| 3 months late | 29 Sep 2026 | another £200 |
| 6 months late | 29 Dec 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Jun 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
- 09518162
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2015 (11 years ago)
- Registered office
- Tagus House, 9 Ocean Way, Southampton, Hampshire, SO14 3TJ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 29 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 March 2024
- Last confirmation statement
- 1 October 2026
- Previous names
- B Sky C Northwest Limited (until 20 Apr 2021)
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 Southampton
Other active building contractors registered in Southampton.
- BMS Building Solutions Southern Limited2021
- Boorley Carpentry & Building Ltd2019
- Botley Brickwork Ltd2024
- Bradley A Young Construction Ltd2019
- Brambleton Construction Ltd2025
- Brambleton Homes (Nately Scures) Ltd2025
- Brickland Building Developments Ltd2004
- Brooks Construction Solutions Ltd2023
All building contractors in Southampton · All trades in Southampton · Builders across the UK
Frequently asked questions
When are Blue Sky Developing Limited's accounts due?
Blue Sky Developing Limited's accounts were due at Companies House on 29 March 2026 and the register shows them as overdue.
When is Blue Sky Developing Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 March 2025, due by 29 March 2026, and one for the period to 29 June 2025, due by 29 June 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Blue Sky Developing Limited still trading?
Blue Sky Developing Limited 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 Blue Sky Developing Limited do?
Blue Sky Developing Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Blue Sky Developing Limited?
Blue Sky Developing Limited was incorporated on 31 March 2015, 11 years ago.
What is the penalty if Blue Sky Developing Limited 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 Blue Sky Developing Limited 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.