- Company number
- 12323663
- Incorporated
- 20 Nov 20196 years trading
- Registered office
- 16 Avenue Road, London, N14 4EH
- Nature of business
- Construction of commercial buildings
KM Construction Ltd is a 6-year-old private limited company registered in London, company number 12323663, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 unchanged on the year before, at £100.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- Current assets of £2,622 against £2,522 owed within a year: 1.0 times cover.
- 2 employees on average, down from 5 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £100 | £2,622 | £2,522 | 2 | |
| 30 Nov 2024 | £100 | £1,128 | £1,028 | 5 | |
| 30 Nov 2023 | £100 | £1,862 | £1,762 | 3 | |
| 30 Nov 2022 | £100 | £541 | £441 | 10 | |
| 30 Nov 2021 | £100 | £1,389 | £1,289 | 100 | |
| 30 Nov 2020 | £100 | £41K | £438 | 1 |
Public contracts won
KM Construction Ltd has 3 public sector contract awards on record; the ones with their own published value total £98K (2026). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Denbighshire County Council3 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Denbighshire County Council | Y Ffrith Highway Improvements, Rhyl | £37K | 17 Mar 2026 |
| Denbighshire County Council | Rhyl Road Rhuddlan – Public Realm Improvements | £29K | 17 Mar 2026 |
| Denbighshire County Council | Rhyl Prom Public Realm Improvements | £33K | 5 Jan 2026 |
Where KM Construction Ltd is registered
The registered office is in London (N14), in the Enfield local authority area, London. Show N14 4EH on a map.
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What happens if KM 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 12323663
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2019 (6 years ago)
- Registered office
- 16 Avenue Road, London, N14 4EH
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 19 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 London
Other active building contractors registered in London.
- KM Drylining Limited2025
- KM Interiors Ltd2025
- KM Property Maintenance Limited2018
- Kma Builders Ltd2022
- KMC Construction & Developments Ltd2025
- KMC Dry Liner Specialist Ltd2023
- KMG Services Ltd Ltd2026
- KMK Remedials Limited2024
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are KM Construction Ltd's accounts due?
KM Construction Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is KM Construction Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is KM Construction Ltd still trading?
KM 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 KM Construction Ltd do?
KM Construction Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is KM Construction Ltd?
KM Construction Ltd was incorporated on 20 November 2019, 6 years ago.
Has KM Construction Ltd won public sector contracts?
Yes. KM Construction Ltd has 3 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £98K), most recently from Denbighshire County Council.
What is the penalty if KM 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 KM Construction 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.