- Company number
- 15120820
- Incorporated
- 6 Sep 20233 years trading
- Registered office
- Flat 2 Aberscombe House 10 Garrard Way, Wheathampstead, St Albans, AL4 8PE
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Csaki Construction Limited is a 3-year-old private limited company registered in St Albans, company number 15120820, one of 119 building contractors in St Albans. 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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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 £20K (-77.4%) on the year before, to £5,767.
- Current assets of £29K against £33K owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £5,767 | £5,748 | £29K | £33K | 1 |
| 30 Sep 2024 | £25K | £18K | £6,796 | 1 |
Who runs and owns Csaki Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** C*** | Director | Sep 2023 |
Person with significant control
Where Csaki Construction Limited is registered
The registered office is in St Albans (AL4), in the St Albans local authority area, East of England. Show AL4 8PE on a map.
Other trade companies in AL4
- Savanto LimitedMotor traders
- Smart Finishes LtdPlasterers
- Htandg (Community Services) LtdLandscapers and gardeners
- Block Fire LtdElectricians
- Legacy Outdoor Living LtdLandscapers and gardeners
- Tahir Waqas Construction UK LtdBuilders
- BT Bim LimitedSpecialist contractors
- J&K Property (Herts) LtdInstallers
What happens if Csaki Construction Limited 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
- 15120820
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 September 2023 (3 years ago)
- Registered office
- Flat 2 Aberscombe House 10 Garrard Way, Wheathampstead, St Albans, AL4 8PE
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 5 September 2026
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 St Albans
Other active building contractors registered in St Albans.
- Dani Building Contractors Limited2018
- DB Building Services Ltd2021
- Deamer Limited2013
- Delta Builders Ltd2025
- DK Home Refurbishment Limited2019
- DK Quality Construction Ltd2026
- Dowling Development & Construction Limited2005
- Dumbarton Edwards Contracts Limited2023
All building contractors in St Albans · All trades in St Albans · Builders across the UK
Frequently asked questions
When are Csaki Construction Limited's accounts due?
Csaki Construction Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Csaki Construction Limited'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 Csaki Construction Limited still trading?
Csaki Construction Limited 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 Csaki Construction Limited do?
Csaki Construction Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Csaki Construction Limited?
Csaki Construction Limited was incorporated on 6 September 2023, 3 years ago.
Who runs Csaki Construction Limited?
Csaki Construction Limited has 1 active director, the longest-serving appointed in Sep 2023. Their names and service addresses are on the Companies House register.
Who owns Csaki Construction Limited?
One person or company has significant control of Csaki Construction Limited: an individual (owns 75% or more of the shares).
What is the penalty if Csaki Construction Limited 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 Csaki Construction Limited 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.