- Companies
- Property developers
- Isleworth
- Calton Development Limited
Calton Development Limited
- Company number
- 12685605
- Incorporated
- 20 Jun 20206 years trading
- Registered office
- A M S South Street House, 51 South Street, Isleworth, TW7 7AA
- Nature of business
- Development of building projects
Calton Development Limited is a 6-year-old private limited company registered in Isleworth, company number 12685605, one of 72 property development companies in Isleworth. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £3,224 (+236.2%) on the year before, to £4,589.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £29K against £24K owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £4,589 | £29K | £24K | 1 | |
| 30 Jun 2024 | £1,365 | £37K | £35K | 1 | |
| 30 Jun 2023 | £3,503 | £32K | £28K | 1 | |
| 30 Jun 2022 | £1,621 | £29K | £26K | 1 | |
| 30 Jun 2021 | -£12K | £16K | £22K | 1 |
Where Calton Development Limited is registered
The registered office is in Isleworth (TW7), in the Hounslow local authority area, London. Show TW7 7AA on a map.
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Also registered at this address
23 other companies use the same registered office as Calton Development Limited.
- A.Bayes Services Ltd.Scaffolders
- Bellpark Developments LimitedProperty developers
- Buch Construction LimitedSpecialist contractors
- Cda 1 LimitedSpecialist contractors
- City Electrical LimitedElectricians
- Creative Developments Properties LimitedProperty developers
- CSM Design LtdProperty developers
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- Elysian One LimitedProperty developers
- Elysian the Drive LimitedProperty developers
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- Stop Digging Warwickshire LimitedGroundworks and demolition
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What happens if Calton Development 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12685605
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2020 (6 years ago)
- Registered office
- A M S South Street House, 51 South Street, Isleworth, TW7 7AA
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 5 March 2026
- Previous names
- Calton Developement Limited (until 24 Jun 2020)
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 Isleworth
Other active property development companies registered in Isleworth.
- Castleford Lumley Development Limited2024
- Citadel Building Company Ltd2012
- Claughton Estates Limited2022
- Creative Developments Properties Limited2022
- Cromwell RD Ltd2026
- Crown Street Development Limited2020
- CSM Design Ltd2022
- Dion Homes Ltd2019
All property development companies in Isleworth · All trades in Isleworth · Property developers across the UK
Frequently asked questions
When are Calton Development Limited's accounts due?
Calton Development Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Calton Development Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Calton Development Limited still trading?
Calton Development 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 Calton Development Limited do?
Calton Development Limited is registered under Development of building projects (SIC 41100).
How old is Calton Development Limited?
Calton Development Limited was incorporated on 20 June 2020, 6 years ago.
What is the penalty if Calton Development 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 Calton Development 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.