- Company number
- 16511102
- Incorporated
- 11 Jun 20251 year trading
- Registered office
- 63 Thorndike Avenue, Northolt, UB5 5LB
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Electrical installation; Plumbing, heat and air-conditioning installation
Allied Construction Limited is a 1-year-old private limited company registered in Northolt, company number 16511102, one of 172 building contractors in Northolt. Its next accounts are due at Companies House on 11 March 2027, and its first CT600 is due at HMRC on 10 June 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Allied Construction Limited is registered
The registered office is in Northolt (UB5), in the Ealing local authority area, London. Show UB5 5LB on a map.
Other trade companies in UB5
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- Harmony Buildworks LtdSpecialist contractors
- RBS Homes LtdFinishing trades
- Tda Construction LimitedBuilders
- Ivaan Roofing Solutions LtdRoofers
- Jacob Fleet Services LtdMotor traders
- Upliftcarsltd LtdMotor traders
- Caraze LtdMotor traders
What happens if Allied Construction 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 11 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Mar 2027 to 11 Apr 2027 | £150 |
| 1 to 3 months late | 12 Apr 2027 to 11 Jun 2027 | £375 |
| 3 to 6 months late | 12 Jun 2027 to 11 Sep 2027 | £750 |
| More than 6 months late | From 12 Sep 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
- 16511102
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 June 2025 (1 year ago)
- Registered office
- 63 Thorndike Avenue, Northolt, UB5 5LB
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 June 2026
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 Northolt
Other active building contractors registered in Northolt.
- Amma Civil & Structural Engineering PVT Limited2007
- Arkitekt Home Improvement Ltd2020
- Arta Atelier Ltd2024
- Artisan Constructors Limited2025
- Arttom Build Ltd2019
- Asm Builders Services Limited2021
- Aulakh Design and Build Limited2023
- Banatim Limited2021
All building contractors in Northolt · All trades in Northolt · Builders across the UK
Frequently asked questions
When are Allied Construction Limited's accounts due?
Allied Construction Limited's next accounts are due at Companies House by 11 March 2027 (in 150 days), covering the period to 30 June 2026.
When is Allied Construction Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 10 June 2026, due by 10 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Allied Construction Limited still trading?
Allied Construction 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 Allied Construction Limited do?
Allied Construction Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Allied Construction Limited?
Allied Construction Limited was incorporated on 11 June 2025, 1 year ago.
What is the penalty if Allied Construction 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 Allied Construction 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.