- Companies
- Property developers
- Sheffield
- Sky-House Co. (Copper ST) Ltd
Sky-House Co. (Copper ST) Ltd
- Company number
- 15144915
- Incorporated
- 18 Sep 20233 years trading
- Registered office
- Hope Works 25, Mowbray Street, Sheffield, S3 8EL
- Nature of business
- Development of building projects; Construction of domestic buildings
Sky-House Co. (Copper ST) Ltd is a 3-year-old private limited company registered in Sheffield, company number 15144915, one of 554 property development companies in Sheffield. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 unchanged on the year before, at £100.
- Current assets of £26K against £26K owed within a year: 1.0 times cover.
- 2 employees on average during the year.
- 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 Mar 2025 | £100 | £26K | £26K | 2 | |
| 31 Mar 2024 | £100 | £0 |
Where Sky-House Co. (Copper ST) Ltd is registered
The registered office is in Sheffield (S3), in the Sheffield local authority area, Yorkshire and The Humber. Show S3 8EL on a map.
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Also registered at this address
5 other companies use the same registered office as Sky-House Co. (Copper ST) Ltd.
- Crossbow Investments LimitedBuilders
- Krynkl LimitedBuilders
- Sky-House Co. (Oughtibridge Mill) LimitedBuilders
- Sky-House Co. LimitedBuilders
- Sky-House Construct LimitedProperty developers
What happens if Sky-House Co. (Copper ST) 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 15144915
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 September 2023 (3 years ago)
- Registered office
- Hope Works 25, Mowbray Street, Sheffield, S3 8EL
- Nature of business
- Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 17 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.
- Sky-House Co. (Fox Valley) Limited2004
- Sky-House Co. (Sylvester Gardens) Limited2025
- Sky-House Construct Limited2015
- Slater Woodhouse Developments Limited2024
- Smart Estate Services Ltd2025
- Southernwood Dore Limited2017
- Spatha Properties Limited2006
- SRSR Enterprise Ltd2014
All property development companies in Sheffield · All trades in Sheffield · Property developers across the UK
Frequently asked questions
When are Sky-House Co. (Copper ST) Ltd's accounts due?
Sky-House Co. (Copper ST) Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Sky-House Co. (Copper ST) Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Sky-House Co. (Copper ST) Ltd still trading?
Sky-House Co. (Copper ST) Ltd is listed as active on the Companies House register (checked 13 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 Sky-House Co. (Copper ST) Ltd do?
Sky-House Co. (Copper ST) Ltd is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202).
How old is Sky-House Co. (Copper ST) Ltd?
Sky-House Co. (Copper ST) Ltd was incorporated on 18 September 2023, 3 years ago.
What is the penalty if Sky-House Co. (Copper ST) 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 Sky-House Co. (Copper ST) Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.