- Companies
- Property developers
- Leeds
- S9 Systems Limited
S9 Systems Limited
- Company number
- 11149411
- Incorporated
- 15 Jan 20188 years trading
- Registered office
- Units 1 & 2 Sandleas Way, Sandleas Way, Leeds, LS15 8AW
- Nature of business
- Development of building projects
S9 Systems Limited is a 8-year-old private limited company registered in Leeds, company number 11149411, one of 831 property development companies in Leeds. 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 £5,325 (-38.6%) on the year before, to £8,467.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £28K against £10K owed within a year: 2.7 times cover.
- 1 employee on average, up from 0 the year before.
- 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 Jan 2025 | £8,467 | £28K | £10K | 1 | |
| 31 Jan 2024 | £14K | £23K | £10K | 0 | |
| 31 Jan 2023 | £11K | £29K | £10K | 0 | |
| 31 Jan 2022 | £9,846 | £40K | £10K | 0 | |
| 31 Jan 2021 | £8,721 | £47K | £10K | 0 | |
| 31 Jan 2020 | £8,379 | £1,971 | £10K | 0 | |
| 31 Jan 2019 | £8,027 | £2,423 | £10K |
Where S9 Systems Limited is registered
The registered office is in Leeds (LS15), in the Leeds local authority area, Yorkshire and The Humber. Show LS15 8AW on a map.
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Also registered at this address
1 other company uses the same registered office as S9 Systems Limited.
- Selectany LimitedBuilders
What happens if S9 Systems 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 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
- 11149411
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2018 (8 years ago)
- Registered office
- Units 1 & 2 Sandleas Way, Sandleas Way, Leeds, LS15 8AW
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 14 January 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Leeds
Other active property development companies registered in Leeds.
- Sammon Building Contractors Ltd2013
- Sandby (York) Limited2011
- Sandby Limited2015
- Sarsfield Building Developments Limited2023
- Satish Kohli and Rekha Kohli T/A SK Investments Leeds Limited2020
- Savi Developments & Maintenance Limited2021
- Scandinavian Homes Limited2011
- Scarborough B3 Coast Limited2020
All property development companies in Leeds · All trades in Leeds · Property developers across the UK
Frequently asked questions
When are S9 Systems Limited's accounts due?
S9 Systems Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is S9 Systems Limited'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 S9 Systems Limited still trading?
S9 Systems 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 S9 Systems Limited do?
S9 Systems Limited is registered under Development of building projects (SIC 41100).
How old is S9 Systems Limited?
S9 Systems Limited was incorporated on 15 January 2018, 8 years ago.
What is the penalty if S9 Systems 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 S9 Systems 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.