- Company number
- 15759349
- Incorporated
- 4 Jun 20242 years trading
- Registered office
- 88 Talbot Road, Southsea, PO4 0HE
- Nature of business
- Construction of domestic buildings
Boon Construction Ltd is a 2-year-old private limited company registered in Southsea, company number 15759349, one of 53 building contractors in Southsea. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 30 June 2025, as filed at Companies House.
Where Boon Construction Ltd is registered
The registered office is in Southsea (PO4), in the Portsmouth local authority area, South East. Show PO4 0HE on a map.
Other trade companies in PO4
- Prestiige LtdMechanics and garages
- Portsea Homes LimitedProperty developers
- Elite Building Services (Portsmouth) LtdBuilders
- G Form Drylining LimitedPlasterers
- Solent Sales Haulage & Storage LtdMotor traders
- Koko Construction LtdBuilders
- Chase RCS LtdCivil engineering
- Proper Job Handyman LtdFinishing trades
What happens if Boon 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 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
- 15759349
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 June 2024 (2 years ago)
- Registered office
- 88 Talbot Road, Southsea, PO4 0HE
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 12 March 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Southsea
Other active building contractors registered in Southsea.
- Brialex Construction Ltd2016
- Castaway Carpentry Ltd2023
- Cdi Homes Limited2017
- Cmhireforce Ltd2022
- D L Home Improvements Ltd2025
- D Robinson Brickwork Ltd2025
- D W L Home Improvements Ltd2021
- Elbre Ltd2016
All building contractors in Southsea · All trades in Southsea · Builders across the UK
Frequently asked questions
When are Boon Construction Ltd's accounts due?
Boon Construction Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Boon Construction Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Boon Construction Ltd still trading?
Boon Construction 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 Boon Construction Ltd do?
Boon Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Boon Construction Ltd?
Boon Construction Ltd was incorporated on 4 June 2024, 2 years ago.
What is the penalty if Boon 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 Boon Construction 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.