- Company number
- 10840650
- Incorporated
- 28 Jun 20179 years trading
- Registered office
- 70 D'arcy Gardens, Harrow, HA3 9JT
- Nature of business
- Construction of domestic buildings; Painting; Other building completion and finishing
Blue Sky Builders Ltd is a 9-year-old private limited company registered in Harrow, company number 10840650, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £495 (+7.4%) on the year before, to £7,172.
- Net assets rose in 7 of 7 year-on-year comparisons on record.
- Current assets of £32K against £5,116 owed within a year: 6.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £7,172 | £32K | £5,116 | 0 | |
| 30 Jun 2024 | £6,677 | £37K | £6,382 | 0 | |
| 30 Jun 2023 | £6,287 | £43K | £6,133 | 0 | |
| 30 Jun 2022 | £5,924 | £48K | £7,152 | 0 | |
| 30 Jun 2021 | £5,278 | £54K | £10K | 0 | |
| 30 Jun 2020 | £4,803 | £57K | £11K | 0 | |
| 30 Jun 2019 | £327 | £404 | £77 | 1 | |
| 30 Jun 2018 | £1 | £1 | £1 |
Where Blue Sky Builders Ltd is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 9JT on a map.
Other trade companies in HA3
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- Asr234 LimitedCivil engineering
- Shine Bright With NV LtdMechanics and garages
- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
- Add22 LtdCivil engineering
- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
Also registered at this address
2 other companies use the same registered office as Blue Sky Builders Ltd.
- Express Contractors LtdBuilders
- Zenit Edge LtdInstallers
What happens if Blue Sky Builders 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 10840650
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2017 (9 years ago)
- Registered office
- 70 D'arcy Gardens, Harrow, HA3 9JT
- Nature of business
- Construction of domestic buildings (SIC 41202)
Painting (SIC 43341)
Other building completion and finishing (SIC 43390) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 9 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 Harrow
Other active building contractors registered in Harrow.
- Bluejay Construction Limited2003
- BMB Ukr Construction Ltd2022
- BN4 Limited2025
- Bob Interiors Ltd2016
- Bob's Construction Ltd2018
- Bogdantiling Ltd2023
- Borderline Contract Services Ltd1998
- Bostan Drylining Ltd2025
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Blue Sky Builders Ltd's accounts due?
Blue Sky Builders Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Blue Sky Builders Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Blue Sky Builders Ltd still trading?
Blue Sky Builders 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 Blue Sky Builders Ltd do?
Blue Sky Builders Ltd is registered under Construction of domestic buildings (SIC 41202); Painting (SIC 43341); Other building completion and finishing (SIC 43390).
How old is Blue Sky Builders Ltd?
Blue Sky Builders Ltd was incorporated on 28 June 2017, 9 years ago.
What is the penalty if Blue Sky Builders 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 Blue Sky Builders 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.