- Company number
- 15834545
- Incorporated
- 12 Jul 20242 years trading
- Registered office
- 15A Oldfield Road, London, NW10 9UD
- Nature of business
- Construction of domestic buildings; Electrical installation; Painting; Roofing activities
Happy House Project Ltd is a 2-year-old private limited company registered in London, company number 15834545, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
Where Happy House Project Ltd is registered
The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 9UD on a map.
Other trade companies in NW10
- Smart Roof Group LtdRoofers
- Mah Maintenance London LimitedFinishing trades
- 46 Electrical LtdElectricians
- Ahf Construction LtdBuilders
- Hook and Hoist LtdMachinery repair and installation
- Wrights Building Services LtdFinishing trades
- Abx Autos LtdMotor traders
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What happens if Happy House Project 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 15834545
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 July 2024 (2 years ago)
- Registered office
- 15A Oldfield Road, London, NW10 9UD
- Nature of business
- Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Painting (SIC 43341)
Roofing activities (SIC 43910) - Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 11 July 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 London
Other active building contractors registered in London.
- Haque Property & Construction Ltd2025
- Harbour Refurbishment Ltd2021
- Harbour Roofing and Reclamation Ltd2026
- Hard Hat Builders Limited2020
- Hardhat Ltd2026
- Harding & Son Construction Ltd2025
- Hardman Contractors Ltd2026
- Hardworkers Ltd2019
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Happy House Project Ltd's accounts due?
Happy House Project Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Happy House Project Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Happy House Project Ltd still trading?
Happy House Project 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 Happy House Project Ltd do?
Happy House Project Ltd is registered under Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Painting (SIC 43341); Roofing activities (SIC 43910).
How old is Happy House Project Ltd?
Happy House Project Ltd was incorporated on 12 July 2024, 2 years ago.
What is the penalty if Happy House Project 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 Happy House Project 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.