- Companies
- Property developers
- Ipswich
- Sustainomics Holdings Limited
Sustainomics Holdings Limited
- Company number
- 11261007
- Incorporated
- 19 Mar 20188 years trading
- Registered office
- 1 London Road, Ipswich, IP1 2HA
- Nature of business
- Development of building projects; Management consultancy activities other than financial management
Sustainomics Holdings Limited is a 8-year-old private limited company registered in Ipswich, company number 11261007, one of 286 property development companies in Ipswich. 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 up £295K (+96.1%) on the year before, to -£12K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £568K against £556K owed within a year: 1.0 times cover.
- 7 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£12K | £70K | £568K | £556K | 7 |
| 31 Mar 2024 | -£308K | £55K | £699K | £574K | 7 |
| 31 Mar 2023 | -£258K | £69K | £752K | £573K | 7 |
| 31 Mar 2022 | -£307K | £57K | £431K | £340K | 6 |
| 31 Mar 2021 | -£247K | £82K | £456K | £311K | 6 |
| 31 Mar 2020 | -£104K | £29K | £93K | £203K | 6 |
| 31 Mar 2019 | £4,204 | £97K | £126K | £127K |
Where Sustainomics Holdings Limited is registered
The registered office is in Ipswich (IP1), in the Ipswich local authority area, East of England. Show IP1 2HA on a map.
Other trade companies in IP1
- Youngs Cabling LtdInstallers
- Tendring Home Solutions LtdFinishing trades
- Ebiavi Painting and Decorating LtdPainters and decorators
- Pro Build Care LtdFinishing trades
- One Stop Construction LtdBuilders
- Ra & MJ Fellgett LtdMachinery repair and installation
- Ortan Ems (Engineering & Marine Services) LtdMachinery repair and installation
- Affordable Road Planings LimitedCivil engineering
Shared registered office
64 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 Sustainomics Holdings 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 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
- 11261007
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 March 2018 (8 years ago)
- Registered office
- 1 London Road, Ipswich, IP1 2HA
- Nature of business
- Development of building projects (SIC 41100)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 March 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Equassas Ltd (until 10 Apr 2023)
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 Ipswich
Other active property development companies registered in Ipswich.
- T&M Builders Suffolk Ltd2023
- Tamera Properties Limited2026
- Tammie Bloome Homes Ltd2017
- Tammie Holdings Ltd2017
- Tammie Homes Ltd2015
- Tates Properties Limited2025
- Taylor Properties (Wivenhoe) Limited1982
- Telegraph Hill Investments Ltd2022
All property development companies in Ipswich · All trades in Ipswich · Property developers across the UK
Frequently asked questions
When are Sustainomics Holdings Limited's accounts due?
Sustainomics Holdings Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Sustainomics Holdings Limited'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 Sustainomics Holdings Limited still trading?
Sustainomics Holdings 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 Sustainomics Holdings Limited do?
Sustainomics Holdings Limited is registered under Development of building projects (SIC 41100); Management consultancy activities other than financial management (SIC 70229).
How old is Sustainomics Holdings Limited?
Sustainomics Holdings Limited was incorporated on 19 March 2018, 8 years ago.
What is the penalty if Sustainomics Holdings 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 Sustainomics Holdings 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.