- Companies
- Builders
- Northwood Hills
- Signature 1 Construction Ltd
Signature 1 Construction Ltd
- Company number
- 11765488
- Incorporated
- 14 Jan 20197 years trading
- Registered office
- Suite 1B1, Argyle House Northside, Joel Street, Northwood Hills, HA6 1NW
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Signature 1 Construction Ltd is a 7-year-old private limited company registered in Northwood Hills, company number 11765488, one of 11 building contractors in Northwood Hills. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £43K (-99.2%) on the year before, to £346.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- Current assets of £41K against £15K owed within a year: 2.7 times cover.
- 1 employee on average, down from 2 the year before.
- 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 Jan 2025 | £346 | £32K | £41K | £15K | 1 |
| 31 Jan 2024 | £43K | £85K | £109K | £37K | 2 |
| 31 Jan 2023 | £97K | £69K | £183K | £52K | 2 |
| 31 Jan 2022 | £2,055 | £76K | £76K | £36K | 2 |
| 31 Jan 2021 | £3,973 | £48K | £53K | £6,488 | 2 |
| 31 Jan 2020 | £18K | £59K | £66K | £49K |
Who runs and owns Signature 1 Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** S*** | Director | Oct 2020 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| C*** S*** | Director | Jan 2019 | May 2026 |
Person with significant control
Where Signature 1 Construction Ltd is registered
The registered office is in Northwood Hills (HA6), in the Hillingdon local authority area, London. Show HA6 1NW on a map.
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Shared registered office
30 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 Signature 1 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 11765488
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2019 (7 years ago)
- Registered office
- Suite 1B1, Argyle House Northside, Joel Street, Northwood Hills, HA6 1NW
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 January (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 28 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 Northwood Hills
Other active building contractors registered in Northwood Hills.
- Sound Construction Limited2019
- Against the Grain Construction Limited2024
- Alpha Projects Limited2025
- Apex Building Group Ltd2026
- C. Lew Hodgins & Sons Limited2013
- Creo Building Services Limited2010
- Greystoke Builders Limited2006
- Lionhead Construction Limited2005
All building contractors in Northwood Hills · All trades in Northwood Hills · Builders across the UK
Frequently asked questions
When are Signature 1 Construction Ltd's accounts due?
Signature 1 Construction Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Signature 1 Construction Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Signature 1 Construction Ltd still trading?
Signature 1 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 Signature 1 Construction Ltd do?
Signature 1 Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Signature 1 Construction Ltd?
Signature 1 Construction Ltd was incorporated on 14 January 2019, 7 years ago.
Who runs Signature 1 Construction Ltd?
Signature 1 Construction Ltd has 1 active director, the longest-serving appointed in Oct 2020. Their names and service addresses are on the Companies House register.
Who owns Signature 1 Construction Ltd?
One person or company has significant control of Signature 1 Construction Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Signature 1 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 Signature 1 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.