- Companies
- Property developers
- Sheffield
- C21 Consultancy Limited
C21 Consultancy Limited
- Company number
- 12221798
- Incorporated
- 23 Sep 20197 years trading
- Registered office
- 21 Fir Place, Killamarsh, Sheffield, S21 1GT
- Nature of business
- Development of building projects; Information technology consultancy activities; Management consultancy activities other than financial management; Other professional, scientific and technical activities n.e.c.
C21 Consultancy Limited is a 7-year-old private limited company registered in Sheffield, company number 12221798, one of 554 property development companies in Sheffield. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £56K on the year before, to £59K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2026 | £59K | £59K | £0 | 0 | |
| 30 Sep 2025 | £3,214 | £3,214 | £0 | 0 | |
| 30 Sep 2024 | £86K | £86K | £0 | 4 | |
| 30 Sep 2023 | £104K | £104K | £0 | 4 | |
| 30 Sep 2022 | £100K | £100K | £0 | 4 | |
| 30 Sep 2021 | £62K | £62K | £0 | 4 | |
| 30 Sep 2020 | £10K | £10K | £0 | 2 |
Where C21 Consultancy Limited is registered
The registered office is in Sheffield (S21), in the North East Derbyshire local authority area, East Midlands. Show S21 1GT on a map.
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What happens if C21 Consultancy 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 12221798
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2019 (7 years ago)
- Registered office
- 21 Fir Place, Killamarsh, Sheffield, S21 1GT
- Nature of business
- Development of building projects (SIC 41100)
Information technology consultancy activities (SIC 62020)
Management consultancy activities other than financial management (SIC 70229)
Other professional, scientific and technical activities n.e.c. (SIC 74909) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 22 September 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 Sheffield
Other active property development companies registered in Sheffield.
- Caliburn Developments Limited2017
- Calver Developments Limited2005
- Carlm Design Ltd.2008
- Carrington Road Limited2026
- Castle Contractors and Developments Limited2015
- Castlebrooke HS2 Developments Limited2019
- Castlewood Contracts Limited2010
- Catherall Construction Limited2025
All property development companies in Sheffield · All trades in Sheffield · Property developers across the UK
Frequently asked questions
When are C21 Consultancy Limited's accounts due?
C21 Consultancy Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is C21 Consultancy Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is C21 Consultancy Limited still trading?
C21 Consultancy 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 C21 Consultancy Limited do?
C21 Consultancy Limited is registered under Development of building projects (SIC 41100); Information technology consultancy activities (SIC 62020); Management consultancy activities other than financial management (SIC 70229); Other professional, scientific and technical activities n.e.c. (SIC 74909).
How old is C21 Consultancy Limited?
C21 Consultancy Limited was incorporated on 23 September 2019, 7 years ago.
What is the penalty if C21 Consultancy 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 C21 Consultancy 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.