- Companies
- Property developers
- Isleworth
- Citadel Building Company Ltd
Citadel Building Company Ltd
- Company number
- 08239607
- Incorporated
- 4 Oct 201214 years trading
- Registered office
- 29 Pevensey Close, Isleworth, Middlesex, TW7 4QS
- Nature of business
- Development of building projects; Electrical installation; Joinery installation; Other building completion and finishing
Citadel Building Company Ltd is a 14-year-old private limited company registered in Isleworth, company number 08239607, one of 72 property development companies in Isleworth. 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 down £17K (-37.9%) on the year before, to £27K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £19K against £12K owed within a year: 1.6 times cover.
- 2 employees on average during the year.
- 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 Oct 2025 | £27K | £19K | £12K | 2 | |
| 31 Oct 2024 | £44K | £63K | £39K | 2 | |
| 31 Oct 2023 | £52K | £159K | £110K | 2 | |
| 31 Oct 2022 | £59K | £176K | £121K | 2 | |
| 31 Oct 2021 | £37K | £107K | £75K | 3 | |
| 31 Oct 2020 | £55K | £157K | £108K | 3 | |
| 31 Oct 2019 | £27K | £130K | £110K | 3 | |
| 31 Oct 2018 | £16K | £82K | £75K | ||
| 31 Oct 2017 | £16K | £170K | £166K | ||
| 31 Oct 2016 | £10K | £114K | £105K | £111K |
Where Citadel Building Company Ltd is registered
The registered office is in Isleworth (TW7), in the Hounslow local authority area, London. Show TW7 4QS on a map.
Other trade companies in TW7
- Pracom LtdMachinery repair and installation
- V&R Construction Group LtdBuilders
- Gio Construction LimitedBuilders
- S & H Bodywork LtdMechanics and garages
- KS Garage Isleworth LtdMotor traders
- C Wiseman Services LtdCleaning companies
- Avenida Developments LtdProperty developers
- Courtesy Cars Group UK LtdMotor traders
What happens if Citadel Building Company 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
- 08239607
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 October 2012 (14 years ago)
- Registered office
- 29 Pevensey Close, Isleworth, Middlesex, TW7 4QS
- Nature of business
- Development of building projects (SIC 41100)
Electrical installation (SIC 43210)
Joinery installation (SIC 43320)
Other building completion and finishing (SIC 43390) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 4 October 2025
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.
- Claughton Estates Limited2022
- Creative Developments Properties Limited2022
- Cromwell RD Ltd2026
- Crown Street Development Limited2020
- CSM Design Ltd2022
- Dion Homes Ltd2019
- Dion Management Ltd2019
- Easyways Removals Ltd2023
All property development companies in Isleworth · All trades in Isleworth · Property developers across the UK
Frequently asked questions
When are Citadel Building Company Ltd's accounts due?
Citadel Building Company 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 Citadel Building Company 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 Citadel Building Company Ltd still trading?
Citadel Building Company 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 Citadel Building Company Ltd do?
Citadel Building Company Ltd is registered under Development of building projects (SIC 41100); Electrical installation (SIC 43210); Joinery installation (SIC 43320); Other building completion and finishing (SIC 43390).
How old is Citadel Building Company Ltd?
Citadel Building Company Ltd was incorporated on 4 October 2012, 14 years ago.
What is the penalty if Citadel Building Company 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 Citadel Building Company 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.