- Companies
- Property developers
- Swindon
- Six K Construction. Ltd
Six K Construction. Ltd
- Company number
- 16421151
- Incorporated
- 30 Apr 20251 year trading
- Registered office
- Woodland Chambers - Corporate Services 79 Woodland View, North Wroughton, Swindon, Wiltshire, SN4 9AA
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Other construction installation
Six K Construction. Ltd is a 1-year-old private limited company registered in Swindon, company number 16421151, one of 223 property development companies in Swindon. Its next accounts are due at Companies House on 31 January 2027, and its first CT600 is due at HMRC on 29 April 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Six K Construction. Ltd is registered
The registered office is in Swindon (SN4), in the Swindon local authority area, South West. Show SN4 9AA on a map.
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Also registered at this address
2 other companies use the same registered office as Six K Construction. Ltd.
- A & D Scaffolding Associates LtdScaffolders
- Ma UK Logistics LtdMechanics and garages
What happens if Six K 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16421151
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 April 2025 (1 year ago)
- Registered office
- Woodland Chambers - Corporate Services 79 Woodland View, North Wroughton, Swindon, Wiltshire, SN4 9AA
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 18 August 2025
- Previous names
- Six 7 Construction Ltd (until 7 May 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 Swindon
Other active property development companies registered in Swindon.
- Skylark Estates Ltd.2016
- Sovereign Consulting Ltd2025
- Sovereign Structures Ltd2019
- Squire Property Limited2021
- Start Right Construction Limited2022
- Stefi Development Ltd2026
- Stokes Developments Ltd2026
- Stonecrest Property Development Ltd2025
All property development companies in Swindon · All trades in Swindon · Property developers across the UK
Frequently asked questions
When are Six K Construction. Ltd's accounts due?
Six K Construction. Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Six K Construction. Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 April 2026, due by 29 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Six K Construction. Ltd still trading?
Six K Construction. Ltd is listed as active on the Companies House register (checked 13 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 Six K Construction. Ltd do?
Six K Construction. Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Six K Construction. Ltd?
Six K Construction. Ltd was incorporated on 30 April 2025, 1 year ago.
What is the penalty if Six K 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 Six K Construction. Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.