- Companies
- Finishing trades
- London
- McWilliams Construction Ltd
McWilliams Construction Ltd
- Company number
- 11438635
- Incorporated
- 28 Jun 20188 years trading
- Registered office
- 71-75 Shelton Street, London, Greater London, WC2H 9JQ
- Nature of business
- Other building completion and finishing
McWilliams Construction Ltd is a 8-year-old private limited company registered in London, company number 11438635, one of 3,947 building finishing companies in London. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for McWilliams Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £3,557 (+127.4%) on the year before, to £766.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £5,894 against £5,128 owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £766 | £384 | £5,894 | £5,128 | 0 |
| 31 Mar 2024 | -£2,791 | £112 | £1,946 | £4,737 | 0 |
| 31 Mar 2023 | £146 | £142 | £4 | 0 | |
| 31 Mar 2022 | £66 | £648 | £582 | 0 | |
| 31 Mar 2021 | -£3,568 | £1,317 | £4,885 | 0 | |
| 31 Mar 2020 | -£4,172 | £409 | £4,581 | 0 | |
| 31 Mar 2019 | -£3,610 | £105 | £3,715 |
Where McWilliams Construction Ltd is registered
The registered office is in London (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
Other trade companies in WC2H
- Superclean Agency LtdCleaning companies
- Sal Cleaning LtdCleaning companies
- Cityshine Facilities Services LtdCleaning companies
- Pureoceanscleaning LtdCleaning companies
- Muca Property Group LimitedProperty developers
- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 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 McWilliams 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
- 11438635
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2018 (8 years ago)
- Registered office
- 71-75 Shelton Street, London, Greater London, WC2H 9JQ
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 27 June 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- MDB Construction Ltd2017
- Mde Facades Ltd2017
- MDL London Ltd2026
- MDPB Carpentry Limited2015
- MDR Building Services Ltd2024
- MDS Construction Management Solution Limited2017
- Meadow Bespoke Limited2025
- Meehan Construction Limited2020
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are McWilliams Construction Ltd's accounts due?
McWilliams 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 McWilliams 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 McWilliams Construction Ltd still trading?
McWilliams 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 McWilliams Construction Ltd do?
McWilliams Construction Ltd is registered under Other building completion and finishing (SIC 43390).
How old is McWilliams Construction Ltd?
McWilliams Construction Ltd was incorporated on 28 June 2018, 8 years ago.
What is the penalty if McWilliams 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 McWilliams 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.