- Company number
- 09397603
- Incorporated
- 20 Jan 201511 years trading
- Registered office
- Rosedean House, 4 Argyle Road, Barnet, EN5 4DX
- Nature of business
- Construction of domestic buildings
CSD Construction Ltd is a 11-year-old private limited company registered in Barnet, company number 09397603, one of 201 building contractors in Barnet. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 up £197 (+48.3%) on the year before, to £605.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £51K against £29K owed within a year: 1.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £605 | £51K | £51K | £29K | 2 |
| 31 Mar 2025 | £408 | £13K | £38K | £12K | 2 |
| 31 Mar 2024 | £371 | £32K | £44K | £12K | 2 |
| 31 Mar 2023 | £280 | £44K | £44K | £8,210 | 2 |
| 31 Mar 2022 | £1,658 | £42K | £49K | £7,669 | 1 |
| 31 Mar 2021 | £1,351 | £62K | £84K | £33K | 1 |
| 31 Mar 2020 | £945 | £22K | £22K | £22K | 1 |
| 31 Mar 2019 | £683 | £22K | £24K | £24K | |
| 31 Mar 2018 | £677 | £23K | £36K | £36K | |
| 31 Mar 2017 | £216 | £3,817 | £9,681 | £10K |
Where CSD Construction Ltd is registered
The registered office is in Barnet (EN5), in the Barnet local authority area, London. Show EN5 4DX on a map.
Other trade companies in EN5
- Paysa Gas LtdPlumbers and heating engineers
- Greatway Business LtdInstallers
- Je Mobile Tyres LtdMechanics and garages
- Barnet Air LtdPlumbers and heating engineers
- Hutch Electrical LtdElectricians
- Nexflow Mechanical LtdSpecialist contractors
- A J Plant LtdMotor traders
- Plumbing365 LtdPlumbers and heating engineers
Also registered at this address
14 other companies use the same registered office as CSD Construction Ltd.
- Amafhhmas LimitedMachinery repair and installation
- Audi Volks LimitedMechanics and garages
- Cherfan Motors LimitedMechanics and garages
- Diorama Design LtdSpecialist contractors
- E.C.Edwards LimitedProperty developers
- Excellent Cleaning Solutions LtdCleaning companies
- Gas Plumbing LtdPlumbers and heating engineers
- GDH Designs LimitedFinishing trades
- Hart Tree Surgeons LimitedLandscapers and gardeners
- Kingsx Motors LimitedMechanics and garages
- Mint Structures LtdProperty developers
- Perfect Moves LimitedGroundworks and demolition
- Prism Decor & Design LtdSpecialist contractors
- SP Heating & Gas Services LtdRepair services
What happens if CSD 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 09397603
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 January 2015 (11 years ago)
- Registered office
- Rosedean House, 4 Argyle Road, Barnet, EN5 4DX
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 22 May 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 Barnet
Other active building contractors registered in Barnet.
- Cubit Design & Building Ltd2017
- D&P Design Limited2017
- D.U&M Construct Ltd2024
- Dae99 Services Ltd2020
- Damien D Construction Ltd2025
- Danesbury Park Estates Ltd2022
- Daval Construction Limited2001
- Daydream Homes (Hampshire) Limited2022
All building contractors in Barnet · All trades in Barnet · Builders across the UK
Frequently asked questions
When are CSD Construction Ltd's accounts due?
CSD Construction Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is CSD Construction Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is CSD Construction Ltd still trading?
CSD 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 CSD Construction Ltd do?
CSD Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is CSD Construction Ltd?
CSD Construction Ltd was incorporated on 20 January 2015, 11 years ago.
What is the penalty if CSD 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 CSD 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.