- Company number
- 16517006
- Incorporated
- 13 Jun 20251 year trading
- Registered office
- 2ND Floor, Hygeia House, 66 College Road, Harrow, Middlesex, HA1 1BE
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing
Harpenden Modular Construction Ltd is a 1-year-old private limited company registered in Harrow, company number 16517006, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 13 March 2027, and its first CT600 is due at HMRC on 12 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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Who runs and owns Harpenden Modular Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| J*** I*** | Director | Jun 2025 | Aug 2026 |
Person with significant control
Where Harpenden Modular Construction Ltd is registered
The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 1BE on a map.
Other trade companies in HA1
- Cabos Electrical LimitedElectricians
- Mia Maria Services LtdCleaning companies
- Ac Operations LtdScaffolders
- Verde Masters LtdLandscapers and gardeners
- Omega Works Group LtdLandscapers and gardeners
- Call 'Em LimitedPlumbers and heating engineers
- Swan Roofing Services LimitedRoofers
- DRV Property Solutions LtdPainters and decorators
Shared registered office
26 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 Harpenden Modular Construction 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 13 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Mar 2027 to 13 Apr 2027 | £150 |
| 1 to 3 months late | 14 Apr 2027 to 13 Jun 2027 | £375 |
| 3 to 6 months late | 14 Jun 2027 to 13 Sep 2027 | £750 |
| More than 6 months late | From 14 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
- 16517006
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 June 2025 (1 year ago)
- Registered office
- 2ND Floor, Hygeia House, 66 College Road, Harrow, Middlesex, HA1 1BE
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Harrow Service Limited2016
- Hasti Contractors Ltd2023
- Hatfield Interiors Limited2019
- Hazz Builders Ltd2024
- Hemraaj Constructions Ltd2024
- Herish Maintenance Limited2025
- Hestia Homes London Limited2022
- Hexagon Framework Ltd2025
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Harpenden Modular Construction Ltd's accounts due?
Harpenden Modular Construction Ltd's next accounts are due at Companies House by 13 March 2027 (in 151 days), covering the period to 30 June 2026.
When is Harpenden Modular Construction 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 12 June 2026, due by 12 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 Harpenden Modular Construction Ltd still trading?
Harpenden Modular Construction Ltd is listed as active on the Companies House register (checked 12 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 Harpenden Modular Construction Ltd do?
Harpenden Modular Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Harpenden Modular Construction Ltd?
Harpenden Modular Construction Ltd was incorporated on 13 June 2025, 1 year ago.
Who owns Harpenden Modular Construction Ltd?
One person or company has significant control of Harpenden Modular Construction Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Harpenden Modular Construction 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 Harpenden Modular Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.