- Companies
- Property developers
- Bradford
- Ai Complex Constructions Ltd
Ai Complex Constructions Ltd
- Company number
- 15557492
- Incorporated
- 12 Mar 20242 years trading
- Registered office
- Unit 3, 215 Lumb Lane, Bradford, BD8 7SG
- Nature of business
- Development of building projects; Other specialised construction activities n.e.c.; Other professional, scientific and technical activities n.e.c.
Ai Complex Constructions Ltd is a 2-year-old private limited company registered in Bradford, company number 15557492, one of 290 property development companies in Bradford. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Ai Complex Constructions LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Ai Complex Constructions Ltd is registered
The registered office is in Bradford (BD8), in the Bradford local authority area, Yorkshire and The Humber. Show BD8 7SG on a map.
Other trade companies in BD8
- Tru Auto Repairs LtdMechanics and garages
- Kammy Diagnostics LtdMotor traders
- Watt Wizards LtdElectricians
- Horizon Management Services LimitedFacilities management
- Worldtravel Bradford LtdMotor traders
- Gold Car Parts LtdMotor traders
- Reliable Car Solutions LtdMotor traders
- KC Prime Build LimitedFinishing trades
What happens if Ai Complex Constructions 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 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
- 15557492
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 March 2024 (2 years ago)
- Registered office
- Unit 3, 215 Lumb Lane, Bradford, BD8 7SG
- Nature of business
- Development of building projects (SIC 41100)
Other specialised construction activities n.e.c. (SIC 43999)
Other professional, scientific and technical activities n.e.c. (SIC 74909) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 11 March 2026
- Previous names
- Hill Side Security Systems Limited (until 27 May 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 Bradford
Other active property development companies registered in Bradford.
- Aj Kitchen and Bathrooms Ltd2025
- Alchami Real Estate Ltd2024
- Alpha Nova Security Ltd2025
- Altaf Ltd2024
- Annovan Developments Ltd2026
- Annovan Holdings Ltd2022
- Apex Builders & Landscaping Ltd2026
- As Developments Bradford Limited2018
All property development companies in Bradford · All trades in Bradford · Property developers across the UK
Frequently asked questions
When are Ai Complex Constructions Ltd's accounts due?
Ai Complex Constructions Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Ai Complex Constructions Ltd'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 Ai Complex Constructions Ltd still trading?
Ai Complex Constructions 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 Ai Complex Constructions Ltd do?
Ai Complex Constructions Ltd is registered under Development of building projects (SIC 41100); Other specialised construction activities n.e.c. (SIC 43999); Other professional, scientific and technical activities n.e.c. (SIC 74909).
How old is Ai Complex Constructions Ltd?
Ai Complex Constructions Ltd was incorporated on 12 March 2024, 2 years ago.
What is the penalty if Ai Complex Constructions 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 Ai Complex Constructions 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.