- Company number
- 11873923
- Incorporated
- 11 Mar 20197 years trading
- Registered office
- 1 Durdan Cottages, Denbigh Road, Southall, UB1 2RR
- Nature of business
- Construction of domestic buildings
Birk Construction Ltd is a 7-year-old private limited company registered in Southall, company number 11873923, one of 505 building contractors in Southall. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £2,697 (-62.3%) on the year before, to £1,633.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- Current assets of £38K against £39K owed within a year: 1.0 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 Mar 2025 | £1,633 | £38K | £39K | 1 | |
| 31 Mar 2024 | £4,330 | £34K | £39K | 1 | |
| 31 Mar 2023 | £10K | £102K | £44K | 1 | |
| 31 Mar 2022 | £11K | £102K | £45K | 1 | |
| 31 Mar 2021 | £12K | £120K | £0 | 1 | |
| 31 Mar 2020 | £11K | £220K | £164K | 1 |
Where Birk Construction Ltd is registered
The registered office is in Southall (UB1), in the Ealing local authority area, London. Show UB1 2RR on a map.
Other trade companies in UB1
- Kingsbury Roofing & Construction LtdRoofers
- T2Y LtdBuilders
- Driveworx LimitedMotor traders
- Raunak Design and Build LtdBuilders
- Phlo Plumbing & Heating LtdPlumbers and heating engineers
- Airpro Conditioning LimitedPlumbers and heating engineers
- Springfields Property LimitedProperty developers
- Sanndhu Construction UK LtdBuilders
Also registered at this address
1 other company uses the same registered office as Birk Construction Ltd.
- Sarwara Trucking LtdCivil engineering
What happens if Birk 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11873923
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2019 (7 years ago)
- Registered office
- 1 Durdan Cottages, Denbigh Road, Southall, UB1 2RR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 10 March 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 Southall
Other active building contractors registered in Southall.
- Bless Construction Ltd2021
- Blue Lion Construction Group Ltd2025
- Boca Developments Limited2016
- Brick & Beam Projects Limited2026
- Brightway Construction Ltd2025
- Britts UK Ltd2019
- BS Build & Services Limited2025
- BS Ghotra Builders Ltd2017
All building contractors in Southall · All trades in Southall · Builders across the UK
Frequently asked questions
When are Birk Construction Ltd's accounts due?
Birk Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Birk Construction Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Birk Construction Ltd still trading?
Birk 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 Birk Construction Ltd do?
Birk Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Birk Construction Ltd?
Birk Construction Ltd was incorporated on 11 March 2019, 7 years ago.
What is the penalty if Birk 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 Birk 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.