- Company number
- 11630111
- Incorporated
- 18 Oct 20187 years trading
- Registered office
- 75 Smeed Road, Fish Island, London, London, E3 2NE
- Nature of business
- Construction of commercial buildings
Donostia Interiors Ltd is a 7-year-old private limited company registered in London, company number 11630111, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £11K (+18.7%) on the year before, to £72K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £286K against £177K owed within a year: 1.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Oct 2025 | £72K | £146K | £286K | £177K | 0 |
| 31 Oct 2024 | £61K | £133K | £158K | £99K | 0 |
| 31 Oct 2023 | £28K | £5,206 | £229K | £201K | 1 |
| 31 Oct 2022 | £1,458 | £35K | £54K | £30K | 1 |
| 31 Oct 2021 | £1,013 | £41K | £45K | £11K | 0 |
| 31 Oct 2020 | -£1,188 | £45K | £45K | £4,229 | 0 |
| 31 Oct 2019 | -£418 | £81 | £5,191 | £5,609 | 0 |
Who runs and owns Donostia Interiors Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| M*** C*** | Director | Oct 2018 |
| A*** B*** | Director | Oct 2023 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| S*** K*** | Director | Oct 2018 | Nov 2020 |
People with significant control (2)
Charges (secured borrowing)
1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| Barclays Security Trustee Limited | Outstanding | Sep 2026 |
Where Donostia Interiors Ltd is registered
The registered office is in London (E3), in the Tower Hamlets local authority area, London. Show E3 2NE on a map.
Other trade companies in E3
- Spencer Solar Group LtdInstallers
- Mfa Cleaning Surfaces LtdCleaning companies
- Ha Plumbing LtdPlumbers and heating engineers
- East London Projects LtdFinishing trades
- Dockland Executive LtdMotor traders
- Roman London Refurbishment LtdSpecialist contractors
- Akin Traders LtdBuilders
- SHK08 LimitedCleaning companies
Also registered at this address
1 other company uses the same registered office as Donostia Interiors Ltd.
- Level 1 Construct LimitedBuilders
What happens if Donostia Interiors 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 11630111
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 October 2018 (7 years ago)
- Registered office
- 75 Smeed Road, Fish Island, London, London, E3 2NE
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 2 October 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Donostia Fire Protection Ltd (until 6 Oct 2023)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Dor Interiors Limited2013
- Dora Build Ltd2026
- Dora Newbuilds Limited2021
- Dordado Ltd2025
- Dorfil Ltd2020
- Dorian Stones Tiling & Interiors Ltd2024
- Dorin2022 Ltd2022
- Dorking Road Developments Limited2017
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Donostia Interiors Ltd's accounts due?
Donostia Interiors Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Donostia Interiors Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Donostia Interiors Ltd still trading?
Donostia Interiors Ltd 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 Donostia Interiors Ltd do?
Donostia Interiors Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Donostia Interiors Ltd?
Donostia Interiors Ltd was incorporated on 18 October 2018, 7 years ago.
Who runs Donostia Interiors Ltd?
Donostia Interiors Ltd has 2 active directors, the longest-serving appointed in Oct 2018. Their names and service addresses are on the Companies House register.
Who owns Donostia Interiors Ltd?
2 people or companies have significant control of Donostia Interiors Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Donostia Interiors 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 Donostia Interiors Ltd 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.