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  4. ZMK Construction Ltd

ZMK Construction Ltd

ActiveMicro-entity accountsSpecialist contractorsBirmingham
Company number
13139043
Incorporated
18 Jan 20215 years trading
Registered office
100 Fairholme Road, Hodge Hill, Birmingham, B36 8HP
Nature of business
Other specialised construction activities n.e.c.
Accounts due in
384 days
31 Oct 2027
Net assets
£6,187▲
+10.6% on the year before
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

ZMK Construction Ltd is a 5-year-old private limited company registered in Birmingham, company number 13139043, one of 442 specialist construction companies in Birmingham. 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.

Accounts due
31 Oct 2027
in 384 days
For the period to 31 Jan 2027
CT600 due
31 Jan 2028
in 476 days
Period 1 Feb 2026 to 31 Jan 2027
Corporation tax payment
1 Nov 2027
in 385 days
9 months and 1 day after the period end
Confirmation statement
31 Jan 2027
in 111 days
Last made up to 17 Jan 2026

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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 £595 (+10.6%) on the year before, to £6,187.
  • Net assets rose in 5 of 5 year-on-year comparisons on record.
  • 1 employee on average during the year.
  • Balance sheets on record for 6 years, 2021 to 2026.

Net assets by year

Net assets at each year end, 2021 to 2026£0£2,500£5,00031 January 2021: net assets £0£0202131 January 2022: net assets £1,356£1,356202231 January 2023: net assets £1,813£1,813202331 January 2024: net assets £2,857£2,857202431 January 2025: net assets £5,592£5,592202531 January 2026: net assets £6,187£6,1872026
Net assets at each year end, 2021 to 2026£0£2,500£5,00031 January 2021: net assets £0£0202131 January 2022: net assets £1,356£1,356202231 January 2023: net assets £1,813£1,813202331 January 2024: net assets £2,857£2,857202431 January 2025: net assets £5,592£5,592202531 January 2026: net assets £6,187£6,1872026
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Jan 2026£6,187£11K£01
31 Jan 2025£5,592£3,537£6381
31 Jan 2024£2,857£4,158£1,3010
31 Jan 2023£1,813£357£1,967£1540
31 Jan 2022£1,356£1,957£6010
31 Jan 2021£0£0£00

Who runs and owns ZMK Construction Ltd

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

Officer

NameRoleAppointed
I*** M***DirectorJan 2021

Person with significant control

Individual · since Jan 2021
I*** M***
Owns 75% or more of the shares

Where ZMK Construction Ltd is registered

ZMK Construction Ltd's registered office on a map of the UK

The registered office is in Birmingham (B36), in the Birmingham local authority area, West Midlands. Show B36 8HP on a map.

Other trade companies in B36

What happens if ZMK Construction 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 October 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Nov 2027 to 30 Nov 2027£150
1 to 3 months late1 Dec 2027 to 31 Jan 2028£375
3 to 6 months late1 Feb 2028 to 30 Apr 2028£750
More than 6 months lateFrom 1 May 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Feb 2028£200
3 months late30 Apr 2028another £200
6 months late31 Jul 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jan 2029another 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
13139043
Status
Active
Company type
Private limited company
Incorporated
18 January 2021 (5 years ago)
Registered office
100 Fairholme Road, Hodge Hill, Birmingham, B36 8HP
Nature of business
Other specialised construction activities n.e.c. (SIC 43999)
Year end
31 January (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 January 2026
Last confirmation statement
17 January 2026

Filing notes for specialist construction companies

Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.

Similar companies in Birmingham

Other active specialist construction companies registered in Birmingham.

All specialist construction companies in Birmingham · All trades in Birmingham · Specialist contractors across the UK

Frequently asked questions

When are ZMK Construction Ltd's accounts due?

ZMK Construction Ltd's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.

When is ZMK Construction Ltd'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 ZMK Construction Ltd still trading?

ZMK Construction 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 ZMK Construction Ltd do?

ZMK Construction Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).

How old is ZMK Construction Ltd?

ZMK Construction Ltd was incorporated on 18 January 2021, 5 years ago.

Who runs ZMK Construction Ltd?

ZMK Construction Ltd has 1 active director, the longest-serving appointed in Jan 2021. Their names and service addresses are on the Companies House register.

Who owns ZMK Construction Ltd?

One person or company has significant control of ZMK Construction Ltd: an individual (owns 75% or more of the shares).

What is the penalty if ZMK Construction 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 ZMK Construction Ltd 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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