- Companies
- Electricians
- London
- Brown and Blue Limited
Brown and Blue Limited
- Company number
- 06329311
- Incorporated
- 31 Jul 200719 years trading
- Registered office
- 123 Bittacy Rise, London, NW7 2HJ
- Nature of business
- Electrical installation
Brown and Blue Limited is a 19-year-old private limited company registered in London, company number 06329311, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Brown and Blue Limited is registered
The registered office is in London (NW7), in the Barnet local authority area, London. Show NW7 2HJ on a map.
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What happens if Brown and Blue Limited 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 06329311
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 July 2007 (19 years ago)
- Registered office
- 123 Bittacy Rise, London, NW7 2HJ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 30 July 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in London
Other active electrical contractors registered in London.
- Brzezina Solutions Limited2014
- BS Ag Limited2015
- BSB Electrical Services Limited1997
- Bse Contractors Limited2024
- BSF Building Services Ltd2026
- BSG Energy Group Ltd2026
- BSM Engineering Limited2013
- BSP Contracting Limited2008
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Brown and Blue Limited's accounts due?
Brown and Blue Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Brown and Blue Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Brown and Blue Limited still trading?
Brown and Blue Limited 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 Brown and Blue Limited do?
Brown and Blue Limited is registered under Electrical installation (SIC 43210).
How old is Brown and Blue Limited?
Brown and Blue Limited was incorporated on 31 July 2007, 19 years ago.
What is the penalty if Brown and Blue 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 Brown and Blue Limited 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.