- Company number
- 16253113
- Incorporated
- 14 Feb 20251 year trading
- Registered office
- 505 Pinner Road, Harrow, Middlesex, HA2 6EH
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing; Management consultancy activities other than financial management
Artemis Projex Ltd is a 1-year-old private limited company registered in Harrow, company number 16253113, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 14 November 2026, and its first CT600 is due at HMRC on 13 February 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 Artemis Projex Ltd is registered
The registered office is in Harrow (HA2), in the Harrow local authority area, London. Show HA2 6EH on a map.
Other trade companies in HA2
- KJP Engineering LtdElectricians
- JNJ Engineering LimitedCivil engineering
- Notting Hill Sew LtdRepair services
- Grandwellautos LtdMotor traders
- Multisteel Powdercoating LtdPainters and decorators
- Neon Systems LtdElectricians
- Firstclass Facilities LtdCleaning companies
- PMD Construct LtdBuilders
Shared registered office
27 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Artemis Projex 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 14 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Nov 2026 to 14 Dec 2026 | £150 |
| 1 to 3 months late | 15 Dec 2026 to 14 Feb 2027 | £375 |
| 3 to 6 months late | 15 Feb 2027 to 14 May 2027 | £750 |
| More than 6 months late | From 15 May 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
- 16253113
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 February 2025 (1 year ago)
- Registered office
- 505 Pinner Road, Harrow, Middlesex, HA2 6EH
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 February 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 Harrow
Other active building contractors registered in Harrow.
- Artisan Court Ltd2017
- Asg Building Limited2022
- Ashlar Holdings Limited2021
- Ashlar Property Finance Limited2021
- Ashra Building Contractors Limited2021
- Asicon Ltd2026
- Aspire Homes London Limited2015
- Ata Decorating Ltd2022
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Artemis Projex Ltd's accounts due?
Artemis Projex Ltd's next accounts are due at Companies House by 14 November 2026 (in 32 days), covering the period to 31 March 2026.
When is Artemis Projex Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 February 2026, due by 13 February 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Artemis Projex Ltd still trading?
Artemis Projex 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 Artemis Projex Ltd do?
Artemis Projex Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390); Management consultancy activities other than financial management (SIC 70229).
How old is Artemis Projex Ltd?
Artemis Projex Ltd was incorporated on 14 February 2025, 1 year ago.
What is the penalty if Artemis Projex 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 Artemis Projex 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.