- Companies
- Civil engineering
- Harpenden
- Ozdemir Construction Ltd
Ozdemir Construction Ltd
- Company number
- 12471934
- Incorporated
- 19 Feb 20206 years trading
- Registered office
- C/O Fdca- Office 2 Bennet's House, 21 Leyton Road, Harpenden, Hertfordshire, AL5 2HU
- Nature of business
- Construction of other civil engineering projects n.e.c.; Engineering related scientific and technical consulting activities; Other engineering activities
Ozdemir Construction Ltd is a 6-year-old private limited company registered in Harpenden, company number 12471934, one of 15 civil engineering contractors in Harpenden. 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 £892 (-84.8%) on the year before, to £160.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £12K against £2,645 owed within a year: 4.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £160 | £4,169 | £12K | £2,645 | 1 |
| 31 Dec 2024 | £1,052 | £11K | £12K | £508 | 1 |
| 31 Dec 2023 | £643 | £7,219 | £17K | £4,078 | 2 |
| 31 Dec 2022 | £509 | £3,519 | £19K | £3,034 | 2 |
| 31 Dec 2021 | £474 | £16K | £22K | £2,165 | 2 |
| 31 Dec 2020 | £283 | £22K | £1,378 | 1 |
Where Ozdemir Construction Ltd is registered
The registered office is in Harpenden (AL5), in the St Albans local authority area, East of England. Show AL5 2HU on a map.
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- Rolfe Groundworks LtdGroundworks and demolition
- Rolls and Sons LtdProperty developers
- WM Holdings Group LtdProperty developers
- A Hussain Motor Group LtdMotor traders
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Also registered at this address
12 other companies use the same registered office as Ozdemir Construction Ltd.
- Amd Ceramics LimitedSpecialist contractors
- Atlas Yachting LimitedMachinery repair and installation
- DCS Smart Control Systems LimitedMachinery repair and installation
- Fineall Consulting LtdCivil engineering
- Flash Tiles LtdBuilders
- Goobe Construction Solutions LtdProperty developers
- Kanar Engineering LtdBuilders
- Khalkedon & Co. LtdSpecialist contractors
- Ozgur Car Body Repair LtdMotor traders
- Sarikaya Plumbing and Heating LtdPlumbers and heating engineers
- Sunrise Marine LtdMachinery repair and installation
- Tema Construction LtdProperty developers
What happens if Ozdemir 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 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
- 12471934
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 February 2020 (6 years ago)
- Registered office
- C/O Fdca- Office 2 Bennet's House, 21 Leyton Road, Harpenden, Hertfordshire, AL5 2HU
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Engineering related scientific and technical consulting activities (SIC 71122)
Other engineering activities (SIC 71129) - Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 11 February 2026
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 Harpenden
Other active civil engineering contractors registered in Harpenden.
- Real Mechanical Services Limited2018
- Red Parrott Limited2015
- SBP Management and Engineering Solutions Ltd.2016
- Wentbridge Group Limited1998
- Bound Engineering Limited2025
- C.S. Building & Design Limited1997
- Carlton Road Developments (Harpenden) Limited1966
- CSBD Holdings Ltd2022
All civil engineering contractors in Harpenden · All trades in Harpenden · Civil engineering across the UK
Frequently asked questions
When are Ozdemir Construction Ltd's accounts due?
Ozdemir Construction 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 Ozdemir Construction 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 Ozdemir Construction Ltd still trading?
Ozdemir Construction 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 Ozdemir Construction Ltd do?
Ozdemir Construction Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Engineering related scientific and technical consulting activities (SIC 71122); Other engineering activities (SIC 71129).
How old is Ozdemir Construction Ltd?
Ozdemir Construction Ltd was incorporated on 19 February 2020, 6 years ago.
What is the penalty if Ozdemir 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 Ozdemir Construction 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.