- Companies
- Property developers
- London
- K1 Constructions Ltd
K1 Constructions Ltd
- Company number
- 15959350
- Incorporated
- 16 Sep 20242 years trading
- Registered office
- 183 Ground Floor Flat, Goldhawk Road, London, W12 8EP
- Nature of business
- Development of building projects; Construction of domestic buildings
K1 Constructions Ltd is a 2-year-old private limited company registered in London, company number 15959350, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 September 2025, as filed at Companies House.
Where K1 Constructions Ltd is registered
The registered office is in London (W12), in the Hammersmith and Fulham local authority area, London. Show W12 8EP on a map.
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What happens if K1 Constructions 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 15959350
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 September 2024 (2 years ago)
- Registered office
- 183 Ground Floor Flat, Goldhawk Road, London, W12 8EP
- Nature of business
- Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 15 September 2025
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- K1NG Consulting Ltd2019
- K2 Serac Ltd2025
- Ka Design Development Ltd2026
- Kaamil Services Ltd2024
- Kaan Property Ltd2020
- Kabaku General Services Ltd2017
- Kabland Investment Management Ltd2019
- Kafek Construction Ltd2026
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are K1 Constructions Ltd's accounts due?
K1 Constructions Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is K1 Constructions Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is K1 Constructions Ltd still trading?
K1 Constructions Ltd is listed as active on the Companies House register (checked 12 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 K1 Constructions Ltd do?
K1 Constructions Ltd is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202).
How old is K1 Constructions Ltd?
K1 Constructions Ltd was incorporated on 16 September 2024, 2 years ago.
What is the penalty if K1 Constructions 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 K1 Constructions Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.