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  4. Greenarch Energy Limited

Greenarch Energy Limited

ActiveTotal exemption (full) accountsCivil engineeringLondon
Company number
15683187
Incorporated
26 Apr 20242 years trading
Registered office
Pavilion Club, 27 Bush Lane, London, EC4R 0AA
Nature of business
Construction of utility projects for electricity and telecommunications; Electrical installation
Accounts due in
110 days
31 Jan 2027
Net assets
-£526K
At 30 Apr 2025
Cash at bank
£4,559
At 30 Apr 2025
Employees
2
Average during the year
From the Companies House register, 1 Oct 2026

Greenarch Energy Limited is a 2-year-old private limited company registered in London, company number 15683187, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Jan 2027
in 110 days
For the period to 30 Apr 2026
CT600 due
30 Apr 2027
in 199 days
Period 1 May 2025 to 30 Apr 2026
Corporation tax payment
1 Feb 2027
in 111 days
9 months and 1 day after the period end
Confirmation statement
13 May 2027
in 212 days
Last made up to 29 Apr 2026

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Financial snapshot, 2025

From the balance sheet at 30 April 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.

Net assets
-£526K
Cash at bank
£4,559
Current assets
£16K
Owed within a year
£542K
Creditors due within one year
Employees
2
Average during the year, including directors

Who runs and owns Greenarch Energy Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
R*** M***DirectorApr 2024
K*** C***DirectorMay 2026
2 former officers
NameRoleAppointedLeft
Z*** G***DirectorApr 2024Jul 2024
Y*** M***DirectorApr 2024Jul 2024

Person with significant control

Company · since Apr 2026
Greenarch Holding Limited
Owns 75% or more of the shares
Holds 75% or more of the votes
Can appoint and remove directors

Where Greenarch Energy Limited is registered

Greenarch Energy Limited's registered office on a map of the UK

The registered office is in London (EC4R), in the City of London local authority area, England. Show EC4R 0AA on a map.

Other trade companies in EC4R

What happens if Greenarch Energy 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 January 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Feb 2027 to 28 Feb 2027£150
1 to 3 months late1 Mar 2027 to 30 Apr 2027£375
3 to 6 months late1 May 2027 to 31 Jul 2027£750
More than 6 months lateFrom 1 Aug 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 May 2027£200
3 months late30 Jul 2027another £200
6 months late30 Oct 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Apr 2028another 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
15683187
Status
Active
Company type
Private limited company
Incorporated
26 April 2024 (2 years ago)
Registered office
Pavilion Club, 27 Bush Lane, London, EC4R 0AA
Nature of business
Construction of utility projects for electricity and telecommunications (SIC 42220)
Electrical installation (SIC 43210)
Year end
30 April (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 April 2025
Last confirmation statement
29 April 2026

Filing notes for civil engineering contractors

Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.

Similar companies in London

Other active civil engineering contractors registered in London.

All civil engineering contractors in London · All trades in London · Civil engineering across the UK

Frequently asked questions

When are Greenarch Energy Limited's accounts due?

Greenarch Energy Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.

When is Greenarch Energy Limited's CT600 due?

The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.

Is Greenarch Energy Limited still trading?

Greenarch Energy 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 Greenarch Energy Limited do?

Greenarch Energy Limited is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); Electrical installation (SIC 43210).

How old is Greenarch Energy Limited?

Greenarch Energy Limited was incorporated on 26 April 2024, 2 years ago.

Who runs Greenarch Energy Limited?

Greenarch Energy Limited has 2 active directors, the longest-serving appointed in Apr 2024. Their names and service addresses are on the Companies House register.

Who owns Greenarch Energy Limited?

One person or company has significant control of Greenarch Energy Limited: Greenarch Holding Limited (owns 75% or more of the shares).

What is the penalty if Greenarch Energy 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 Greenarch Energy Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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