- Companies
- Property developers
- Synhern CSM Limited
Synhern CSM Limited
- Company number
- 10782441
- Incorporated
- 22 May 20179 years trading
- Registered office
- No.5, Edgecumbe Avenue, Mill Hill, London, NW9 4AT
- Nature of business
- Development of building projects; Non-specialised wholesale trade; Management consultancy activities other than financial management; Quantity surveying activities
Synhern CSM Limited is a 9-year-old private limited company registered in Mill Hill, company number 10782441, one of the UK's property development companies. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £40K on the year before, to £42K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £42K | £41K | £0 | 2 | |
| 31 May 2024 | £1,934 | £4,498 | £0 | 2 | |
| 30 May 2023 | -£14K | £11K | £16K | £21K | 2 |
| 31 May 2022 | £29K | £50K | £59K | £17K | 2 |
| 31 May 2021 | £57K | £102K | £112K | £39K | 2 |
| 31 May 2020 | £13K | £24K | £36K | £25K | 2 |
| 31 May 2019 | -£1,264 | £9,102 | £18K | £19K | |
| 31 May 2018 | £1 |
Where Synhern CSM Limited is registered
The registered office is in Mill Hill (NW9), in the Barnet local authority area, London. Show NW9 4AT on a map.
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What happens if Synhern CSM 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 10782441
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 May 2017 (9 years ago)
- Registered office
- No.5, Edgecumbe Avenue, Mill Hill, London, NW9 4AT
- Nature of business
- Development of building projects (SIC 41100)
Non-specialised wholesale trade (SIC 46900)
Management consultancy activities other than financial management (SIC 70229)
Quantity surveying activities (SIC 74902) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 5 May 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
Other active property development companies.
Frequently asked questions
When are Synhern CSM Limited's accounts due?
Synhern CSM Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Synhern CSM Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Synhern CSM Limited still trading?
Synhern CSM 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 Synhern CSM Limited do?
Synhern CSM Limited is registered under Development of building projects (SIC 41100); Non-specialised wholesale trade (SIC 46900); Management consultancy activities other than financial management (SIC 70229); Quantity surveying activities (SIC 74902).
How old is Synhern CSM Limited?
Synhern CSM Limited was incorporated on 22 May 2017, 9 years ago.
What is the penalty if Synhern CSM 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 Synhern CSM 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.