- Companies
- Civil engineering
- Southampton
- XK Structures Ltd
XK Structures Ltd
- Company number
- 13059060
- Incorporated
- 3 Dec 20205 years trading
- Registered office
- 269 Meggeson Avenue, Southampton, SO18 2HE
- Nature of business
- Construction of other civil engineering projects n.e.c.
XK Structures Ltd is a 5-year-old private limited company registered in Southampton, company number 13059060, one of 114 civil engineering contractors in Southampton. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 down £68K (-28.7%) on the year before, to £170K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £168K against £18K owed within a year: 9.4 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £170K | £165K | £168K | £18K | 3 |
| 31 Dec 2024 | £238K | £265K | £268K | £31K | 3 |
| 31 Dec 2023 | £237K | £304K | £305K | £68K | 3 |
| 31 Dec 2022 | £132K | £91K | £124K | £8,384 | 1 |
| 31 Dec 2021 | £37K | £37K | £198 | 1 |
Where XK Structures Ltd is registered
The registered office is in Southampton (SO18), in the Southampton local authority area, South East. Show SO18 2HE on a map.
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What happens if XK Structures 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13059060
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2020 (5 years ago)
- Registered office
- 269 Meggeson Avenue, Southampton, SO18 2HE
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 13 May 2026
- Previous names
- KD Darsi Ltd (until 4 Nov 2024)
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Southampton
Other active civil engineering contractors registered in Southampton.
- Zemytm Ltd2026
- 3 Counties Civil Engineering Limited2000
- A Builder (Netley) Limited2007
- Advanced Watering Systems Ltd2023
- Af Grounds & Fencing Ltd2025
- Aimac Construction Limited2025
- Altoria TM Services Ltd2026
- Aquila Project Services Ltd2024
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are XK Structures Ltd's accounts due?
XK Structures Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is XK Structures Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is XK Structures Ltd still trading?
XK Structures 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 XK Structures Ltd do?
XK Structures Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is XK Structures Ltd?
XK Structures Ltd was incorporated on 3 December 2020, 5 years ago.
What is the penalty if XK Structures 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 XK Structures 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.