- Companies
- Builders
- Staines-upon-Thames
- Syntax Construction Ltd
Syntax Construction Ltd
- Company number
- 09842504
- Incorporated
- 26 Oct 201510 years trading
- Registered office
- 6 Poole Lane, Staines-upon-Thames, TW19 7DS
- Nature of business
- Construction of domestic buildings
Syntax Construction Ltd is a 10-year-old private limited company registered in Staines-upon-Thames, company number 09842504, one of 106 building contractors in Staines-upon-Thames. 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 up £59K (+163.2%) on the year before, to £23K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £20K against £14K owed within a year: 1.4 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £23K | £197 | £20K | £14K | 0 |
| 31 Mar 2024 | -£36K | £52 | £5,138 | £5,968 | 0 |
| 31 Mar 2023 | -£35K | £555 | £12K | £15K | 0 |
| 31 Mar 2022 | -£33K | £5,693 | £39K | £32K | 0 |
| 31 Mar 2021 | -£34K | £14K | £310K | £299K | 0 |
| 31 Mar 2020 | -£35K | £2,067 | £283K | £319K | 1 |
| 31 Mar 2019 | -£22K | £58 | £289K | £311K | |
| 31 Mar 2018 | £16K | £121 | £274K | £258K | |
| 31 Mar 2017 | £7,430 | £1,078 | £187K | £180K |
Where Syntax Construction Ltd is registered
The registered office is in Staines-upon-Thames (TW19), in the Spelthorne local authority area, South East. Show TW19 7DS on a map.
Other trade companies in TW19
- Falconnee Construction LtdFinishing trades
- Eight Seven Mechanical LtdPlumbers and heating engineers
- NK Crystal Cleaners LtdCleaning companies
- Kamczyja+ LtdLandscapers and gardeners
- Strong Grip Tyres LtdMechanics and garages
- Peev&Co Construction LtdFinishing trades
- Ridgeline Roofing and Home LtdRoofers
- Ridgeline Roofing and Home Improvements LtdRoofers
Also registered at this address
1 other company uses the same registered office as Syntax Construction Ltd.
- Woodthorpe Estate LimitedProperty developers
What happens if Syntax 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
- 09842504
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 October 2015 (10 years ago)
- Registered office
- 6 Poole Lane, Staines-upon-Thames, TW19 7DS
- 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 2025
- Last confirmation statement
- 26 October 2025
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 Staines-upon-Thames
Other active building contractors registered in Staines-upon-Thames.
- T Fielder Construction Ltd2023
- Thakral Services Ltd2025
- Tilesline Ltd2026
- TMT Renovations Ltd2018
- TPJ Construction Ltd2011
- True Top Roofing & Building Ltd2025
- Two Rivers Builders Ltd2024
- Unique Design & Construction Ltd2017
All building contractors in Staines-upon-Thames · All trades in Staines-upon-Thames · Builders across the UK
Frequently asked questions
When are Syntax Construction Ltd's accounts due?
Syntax Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Syntax 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 Syntax Construction Ltd still trading?
Syntax 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 Syntax Construction Ltd do?
Syntax Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Syntax Construction Ltd?
Syntax Construction Ltd was incorporated on 26 October 2015, 10 years ago.
What is the penalty if Syntax 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 Syntax 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.