- Companies
- Machinery repair and installation
- Sheffield
- Sheffield Transmission Developments Limited
Sheffield Transmission Developments Limited
- Company number
- 07170312
- Incorporated
- 25 Feb 201016 years trading
- Registered office
- Highfield Lane, Sheffield, South Yorkshire, S13 9NA
- Nature of business
- Repair of machinery
Sheffield Transmission Developments Limited is a 16-year-old private limited company registered in Sheffield, company number 07170312, one of 205 machinery repair and installation companies in Sheffield. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £156K (-10%) on the year before, to £1.4M.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £2.3M against £935K owed within a year: 2.4 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £1.4M | £569K | £2.3M | £935K | 0 |
| 30 Apr 2024 | £1.6M | £750K | £2.2M | £768K | 15 |
| 30 Apr 2023 | £1.2M | £272K | £2.2M | £769K | 14 |
| 30 Apr 2022 | £806K | £137K | £1.7M | £617K | 15 |
| 30 Apr 2021 | £990K | £304K | £1.6M | £699K | 15 |
Where Sheffield Transmission Developments Limited is registered
The registered office is in Sheffield (S13), in the Sheffield local authority area, Yorkshire and The Humber. Show S13 9NA on a map.
Other trade companies in S13
- Tansley Support Services LimitedRoofers
- PX Centre LtdMotor traders
- Eco-Gen Electrical Group LtdElectricians
- Detailed Cleaning Services LtdCleaning companies
- JC Cooling Solutions LtdPlumbers and heating engineers
- Powertherm Industrial Access LimitedInstallers
- Steel City Vehicle Solutions LtdMotor traders
- S.L.G Construction LimitedCivil engineering
What happens if Sheffield Transmission Developments 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 07170312
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 February 2010 (16 years ago)
- Registered office
- Highfield Lane, Sheffield, South Yorkshire, S13 9NA
- Nature of business
- Repair of machinery (SIC 33120)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 24 November 2025
- Charges (mortgages)
- 0 outstanding of 2 registered
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Sheffield
Other active machinery repair and installation companies registered in Sheffield.
- Shefftech Ltd2022
- SHH Autos Ltd2024
- South Yorkshire Welding Supplies Limited2012
- Specialist Engineering (Yorkshire) Limited2023
- SR Electrical (Yorkshire) Limited2017
- SRS Stairlift Repair Services Ltd2019
- Standby Energy Services Limited2015
- Stannington Plumbing Installation Limited2003
All machinery repair and installation companies in Sheffield · All trades in Sheffield · Machinery repair and installation across the UK
Frequently asked questions
When are Sheffield Transmission Developments Limited's accounts due?
Sheffield Transmission Developments Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Sheffield Transmission Developments Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Sheffield Transmission Developments Limited still trading?
Sheffield Transmission Developments 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 Sheffield Transmission Developments Limited do?
Sheffield Transmission Developments Limited is registered under Repair of machinery (SIC 33120).
How old is Sheffield Transmission Developments Limited?
Sheffield Transmission Developments Limited was incorporated on 25 February 2010, 16 years ago.
What is the penalty if Sheffield Transmission Developments 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 Sheffield Transmission Developments 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.