- Companies
- Builders
- Birmingham
- Simo-Con Ltd
Simo-Con Ltd
- Company number
- 15325997
- Incorporated
- 4 Dec 20232 years trading
- Registered office
- 50 Abbotsford Avenue, Birmingham, B43 6HD
- Nature of business
- Construction of commercial buildings; Site preparation; Other specialised construction activities n.e.c.
Simo-Con Ltd is a 2-year-old private limited company registered in Birmingham, company number 15325997, one of 1,142 building contractors in Birmingham. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £21K on the year before, to £21K.
- Current assets of £40K against £31K owed within a year: 1.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £21K | £40K | £31K | 0 | |
| 31 Dec 2024 | £100 | £100 |
Where Simo-Con Ltd is registered
The registered office is in Birmingham (B43), in the Sandwell local authority area, West Midlands. Show B43 6HD on a map.
Other trade companies in B43
- Colero LimitedPlasterers
- Rael Holding LimitedBuilders
- Zaimm LtdBuilders
- JDM Electrical Installations LtdMechanics and garages
- Renewagreen LtdElectricians
- Grewalgroup LtdProperty developers
- B&E Cleaning LtdCleaning companies
- Paulmanningproperty LtdProperty developers
What happens if Simo-Con 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 15325997
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 December 2023 (2 years ago)
- Registered office
- 50 Abbotsford Avenue, Birmingham, B43 6HD
- Nature of business
- Construction of commercial buildings (SIC 41201)
Site preparation (SIC 43120)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 19 January 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 Birmingham
Other active building contractors registered in Birmingham.
- Singh Chhina Limited2025
- SJ Thomas Construction Ltd2022
- SJ Trading Ltd2020
- SK Builders Birmingham Limited2026
- SK Movers and Builders Ltd.2024
- SK Sehajpal Constructions Ltd2026
- SKBL Ltd2025
- SKP Home Maintenance Ltd2026
All building contractors in Birmingham · All trades in Birmingham · Builders across the UK
Frequently asked questions
When are Simo-Con Ltd's accounts due?
Simo-Con Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Simo-Con Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Simo-Con Ltd still trading?
Simo-Con 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 Simo-Con Ltd do?
Simo-Con Ltd is registered under Construction of commercial buildings (SIC 41201); Site preparation (SIC 43120); Other specialised construction activities n.e.c. (SIC 43999).
How old is Simo-Con Ltd?
Simo-Con Ltd was incorporated on 4 December 2023, 2 years ago.
What is the penalty if Simo-Con 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 Simo-Con 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.