- Company number
- 12321937
- Incorporated
- 19 Nov 20196 years trading
- Registered office
- 3RD Floor Marlborough House, 298 Regents Park Road, London, N3 2SZ
- Nature of business
- Construction of domestic buildings
Y Construction Limited is a 6-year-old private limited company registered in London, company number 12321937, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 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 £5,869 (-3%) on the year before, to £189K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £3.1M against £2.9M owed within a year: 1.1 times cover.
- 28 employees on average, down from 31 the year before.
- Balance sheets on record for 5 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £189K | £13K | £3.1M | £2.9M | 28 |
| 31 Mar 2024 | £195K | £16K | £3.1M | £2.9M | 31 |
| 31 Mar 2023 | £155K | £18K | £2.7M | £2.5M | 34 |
| 31 Mar 2022 | £36K | £28K | £1.4M | £1.4M | 12 |
| 31 Dec 2020 | £75K | £50K | £818K | £694K | 3 |
Where Y Construction Limited is registered
The registered office is in London (N3), in the Barnet local authority area, London. Show N3 2SZ on a map.
Other trade companies in N3
- Key & Keep LtdCleaning companies
- GMS Residential LimitedPlumbers and heating engineers
- Gcap East LtdProperty developers
- Tatras Development LimitedProperty developers
- Chesterfield Corinne LtdProperty developers
- Pure Plumbing Pros LimitedPlumbers and heating engineers
- WS Cleaning Services LtdCleaning companies
- Landfall Projects LimitedProperty developers
Shared registered office
34 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Y 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 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 | 31 Mar 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 | 30 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
- 12321937
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 November 2019 (6 years ago)
- Registered office
- 3RD Floor Marlborough House, 298 Regents Park Road, London, N3 2SZ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 November 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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 London
Other active building contractors registered in London.
- Y N International Ltd2026
- Y Star Construction Ltd2023
- Y T J Construction Limited2026
- Y&S Labourer Ltd2020
- Y.H Property Development Ltd2023
- Yab Builders Ltd2019
- Yad Cleaning Services Ltd2025
- Yad Project Limited2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Y Construction Limited's accounts due?
Y Construction Limited's next accounts are due at Companies House by 30 December 2026 (in 79 days), covering the period to 30 March 2026.
When is Y Construction Limited's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is Y Construction Limited still trading?
Y 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 Y Construction Limited do?
Y Construction Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Y Construction Limited?
Y Construction Limited was incorporated on 19 November 2019, 6 years ago.
What is the penalty if Y 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 Y 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.