Company profile · Builders
Dion Developments Ltd
Dion Developments Ltd is a 8-year-old private limited company registered in Isleworth, company number 11360038, one of 132 building contractors in Isleworth. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Dion Developments Ltd over the years
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 down £9,894 (-1.7%) on the year before, to £566K.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £840K against £255K owed within a year: 3.3 times cover.
- 10 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 May 2025 | £566K | £21 | £840K | £255K | 10 |
| 31 May 2024 | £576K | £9,904 | £822K | £200K | 10 |
| 31 May 2023 | £683K | £14K | £1M | £305K | 10 |
| 31 May 2022 | £575K | £170K | £903K | £287K | 10 |
| 31 May 2021 | £714K | £17K | £1.2M | £426K | 8 |
| 31 May 2020 | £372K | £20K | £747K | £375K | 2 |
| 31 May 2019 | £49K | £470K | £133K |
Where Dion Developments Ltd is registered
The registered office is in Isleworth (TW7), in the Hounslow local authority area, London. Show TW7 5HJ on a map.
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- KS Garage Isleworth LtdMotor traders
- C Wiseman Services LtdCleaning companies
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Also registered at this address
4 other companies use the same registered office as Dion Developments Ltd.
- Cromwell RD LtdProperty developers
- Dion Homes LtdProperty developers
- Dion Management LtdProperty developers
- Eden Side LtdProperty developers
What happens if Dion Developments 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11360038
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 May 2018 (8 years ago)
- Registered office
- 62 Roxborough Avenue, Isleworth, TW7 5HJ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 22 April 2026
- Previous names
- Isleworthbuilders Ltd (until 4 Apr 2022)
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 Isleworth
Other active building contractors registered in Isleworth.
- Dream Home Decorators Limited2024
- Dream Homes West London Ltd2019
- E & S Building Construction Ltd2018
- Easyfixes Maintenance Ltd2022
- Extent Construction Ltd2023
- Family and Friends (Investments) Ltd2025
- First Floor Construction Ltd2022
- Fringe Buildings Construction Private Ltd2023
All building contractors in Isleworth · All trades in Isleworth · Builders across the UK
Frequently asked questions
When are Dion Developments Ltd's accounts due?
Dion Developments Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Dion Developments Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Dion Developments Ltd still trading?
Dion Developments 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 Dion Developments Ltd do?
Dion Developments Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Dion Developments Ltd?
Dion Developments Ltd was incorporated on 14 May 2018, 8 years ago.
What is the penalty if Dion Developments 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 Dion Developments 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.