- Companies
- Property developers
- London
- Rubystone Investments Limited
Rubystone Investments Limited
- Company number
- 02677821
- Incorporated
- 15 Jan 199234 years trading
- Registered office
- 73 Cornhill, London, EC3V 3QQ
- Nature of business
- Development of building projects
Rubystone Investments Limited is a 34-year-old private limited company registered in London, company number 02677821, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 25 December 2026, and the CT600 for the period to 25 March 2026 is due at HMRC on 25 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 up £322K (+5.2%) on the year before, to £6.5M.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £3.4M against £2.9M owed within a year: 1.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £6.5M | £303K | £3.4M | £2.9M | 0 |
| 31 Mar 2024 | £6.2M | £238K | £3.1M | £2.9M | 0 |
| 31 Mar 2023 | £6.1M | £319K | £2.8M | £2.9M | 0 |
| 31 Mar 2022 | £5.8M | £347K | £2.4M | £2.9M | 0 |
| 31 Mar 2021 | £5.5M | £285K | £2.1M | £2.9M | 0 |
| 31 Mar 2020 | £5.3M | £295K | £1.9M | £2.9M | 0 |
| 31 Mar 2019 | £4.9M | £245K | £1.5M | £2.9M | |
| 31 Mar 2018 | £4.5M | £312K | £1.1M | £2.9M | |
| 31 Mar 2017 | £4M | £233K | £749K | £2.9M | |
| 31 Mar 2016 | £3.8M | £64K | £321K | £2.9M |
Where Rubystone Investments Limited is registered
The registered office is in London (EC3V), in the City of London local authority area, London. Show EC3V 3QQ on a map.
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Shared registered office
117 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Rubystone Investments 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 25 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Dec 2026 to 25 Jan 2027 | £150 |
| 1 to 3 months late | 26 Jan 2027 to 25 Mar 2027 | £375 |
| 3 to 6 months late | 26 Mar 2027 to 25 Jun 2027 | £750 |
| More than 6 months late | From 26 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 26 Mar 2027 | £200 |
| 3 months late | 25 Jun 2027 | another £200 |
| 6 months late | 25 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 25 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
- 02677821
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 1992 (34 years ago)
- Registered office
- 73 Cornhill, London, EC3V 3QQ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 25 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 15 January 2026
- Charges (mortgages)
- 1 outstanding of 3 registered
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 London
Other active property development companies registered in London.
- Rudeb Ltd2020
- Rukkstar Properties Ltd2026
- Rulpro Limited2021
- Runa Construction Ltd2025
- Rundell Land Ltd2019
- Runestone Masonry & Construction Ltd2026
- Running Yield Limited2001
- Rural Homes Limited2010
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Rubystone Investments Limited's accounts due?
Rubystone Investments Limited's next accounts are due at Companies House by 25 December 2026 (in 74 days), covering the period to 25 March 2026.
When is Rubystone Investments Limited's CT600 due?
The CT600 for the period to 25 March 2026 is due at HMRC by 25 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 26 December 2026.
Is Rubystone Investments Limited still trading?
Rubystone Investments 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 Rubystone Investments Limited do?
Rubystone Investments Limited is registered under Development of building projects (SIC 41100).
How old is Rubystone Investments Limited?
Rubystone Investments Limited was incorporated on 15 January 1992, 34 years ago.
What is the penalty if Rubystone Investments 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 Rubystone Investments 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.