- Company number
- NI735936
- Incorporated
- 5 Dec 2025
- Registered office
- Office 1 Townsend Enterprise Park, 28 Townsend Street, Belfast, BT13 2ES
- Nature of business
- Construction of domestic buildings
Seapark Construction (2026) Ltd is a newly incorporated private limited company registered in Belfast, company number NI735936, one of 213 building contractors in Belfast. Its next accounts are due at Companies House on 5 September 2027, and its first CT600 is due at HMRC on 4 December 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 Seapark Construction (2026) Ltd is registered
The registered office is in Belfast (BT13), in the Belfast local authority area, Northern Ireland. Show BT13 2ES on a map.
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- Jamie.G LtdMachinery repair and installation
- DTM Precision LtdInstallers
- P & M Construction LtdBuilders
- Boiler Pro N.I. LtdPlumbers and heating engineers
- FMV Construction N.I. LtdSpecialist contractors
- Iba Cars LtdMotor traders
- Budget Contracts LtdGroundworks and demolition
Also registered at this address
9 other companies use the same registered office as Seapark Construction (2026) Ltd.
- A D Contracts (2026) LtdInstallers
- Aghalee Design Services LtdBuilders
- Alia Properties Belfast LtdProperty developers
- Autoglaze (2026) LtdMechanics and garages
- BSF (N.I.) LtdFinishing trades
- J L Armstrong & Sons LtdCivil engineering
- P & M Construction LtdBuilders
- PRL Northern Motors LtdMotor traders
- Trainor Electrical Contracts LtdElectricians
What happens if Seapark Construction (2026) 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 5 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Sep 2027 to 5 Oct 2027 | £150 |
| 1 to 3 months late | 6 Oct 2027 to 5 Dec 2027 | £375 |
| 3 to 6 months late | 6 Dec 2027 to 5 Mar 2028 | £750 |
| More than 6 months late | From 6 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- NI735936
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 December 2025
- Registered office
- Office 1 Townsend Enterprise Park, 28 Townsend Street, Belfast, BT13 2ES
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 December (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 Belfast
Other active building contractors registered in Belfast.
- SGB Contracts Ltd2004
- Shields Plant Hire Ltd2014
- Smarter Built Property Limited2013
- SMC Builders Ltd2002
- SMM Building Services Ltd2025
- Solv Group Ltd2000
- Solv Maintenance Limited2008
- ST Development & Rentals Ltd2016
All building contractors in Belfast · All trades in Belfast · Builders across the UK
Frequently asked questions
When are Seapark Construction (2026) Ltd's accounts due?
Seapark Construction (2026) Ltd's next accounts are due at Companies House by 5 September 2027 (in 327 days), covering the period to 31 December 2026.
When is Seapark Construction (2026) 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 4 December 2026, due by 4 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seapark Construction (2026) Ltd still trading?
Seapark Construction (2026) 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 Seapark Construction (2026) Ltd do?
Seapark Construction (2026) Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Seapark Construction (2026) Ltd?
Seapark Construction (2026) Ltd was incorporated on 5 December 2025, less than a year ago.
What is the penalty if Seapark Construction (2026) 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 Seapark Construction (2026) 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.