- Companies
- Finishing trades
- Southampton
- Konstruktion Ltd
Konstruktion Ltd
- Company number
- 17039711
- Incorporated
- 18 Feb 2026
- Registered office
- 6 New Road, Southampton, SO14 0AA
- Nature of business
- Other building completion and finishing
Konstruktion Ltd is a newly incorporated private limited company registered in Southampton, company number 17039711, one of 181 building finishing companies in Southampton. Its next accounts are due at Companies House on 18 November 2027, and its first CT600 is due at HMRC on 17 February 2028.
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 Konstruktion Ltd is registered
The registered office is in Southampton (SO14), in the Southampton local authority area, South East. Show SO14 0AA on a map.
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What happens if Konstruktion 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 18 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Nov 2027 to 18 Dec 2027 | £150 |
| 1 to 3 months late | 19 Dec 2027 to 18 Feb 2028 | £375 |
| 3 to 6 months late | 19 Feb 2028 to 18 May 2028 | £750 |
| More than 6 months late | From 19 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 17039711
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 February 2026
- Registered office
- 6 New Road, Southampton, SO14 0AA
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Southampton
Other active building finishing companies registered in Southampton.
- L Smith Brickwork and Construction Ltd2023
- Lainston Limited2006
- Linkert Homes Limited2021
- Litexpo Ltd2014
- Loftfoam Ltd2021
- LZ Carpentry Ltd2018
- M&L Decorators Ltd2020
- M&W Building Services Limited2013
All building finishing companies in Southampton · All trades in Southampton · Finishing trades across the UK
Frequently asked questions
When are Konstruktion Ltd's accounts due?
Konstruktion Ltd's next accounts are due at Companies House by 18 November 2027 (in 401 days), covering the period to 28 February 2027.
When is Konstruktion 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 17 February 2027, due by 17 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Konstruktion Ltd still trading?
Konstruktion 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 Konstruktion Ltd do?
Konstruktion Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Konstruktion Ltd?
Konstruktion Ltd was incorporated on 18 February 2026, less than a year ago.
What is the penalty if Konstruktion 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 Konstruktion 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.