- Companies
- Specialist contractors
- Southsea
- Underground Power Cables Ltd
Underground Power Cables Ltd
- Company number
- 16025586
- Incorporated
- 17 Oct 20241 year trading
- Registered office
- Unit F1, Northumberland Road, Southsea, PO5 1DS
- Nature of business
- Other specialised construction activities n.e.c.
Underground Power Cables Ltd is a 1-year-old private limited company registered in Southsea, company number 16025586, one of 38 specialist construction companies in Southsea. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 October 2025, as filed at Companies House.
Where Underground Power Cables Ltd is registered
The registered office is in Southsea (PO5), in the Portsmouth local authority area, South East. Show PO5 1DS on a map.
Other trade companies in PO5
- Fixnova LtdRepair services
- Luxury Resin Floors and Media Walls LtdBuilders
- Pretty Unique Cleaning Services LtdCleaning companies
- Bay Bricks LtdProperty developers
- Blydan Holdings LimitedProperty developers
- Inside Out Developments Southampton LtdBuilders
- Hampshire Car Hire LtdMechanics and garages
- Baynes Wipers LtdMachinery repair and installation
Also registered at this address
23 other companies use the same registered office as Underground Power Cables Ltd.
- All Seasons Southern LtdGlaziers
- Aperture Windows & Doors LtdGlaziers
- At Building Construction LtdBuilders
- Bakes Construction LtdBuilders
- D L Home Improvements LtdBuilders
- D Robinson Brickwork LtdBuilders
- D W L Home Improvements LtdBuilders
- Hampshire Plastering & Spray Rendering LimitedPlasterers
- Hillrise Property Partners LtdBuilders
- Inside Out Developments Southampton LtdBuilders
- Joam Construction Services LtdSpecialist contractors
- John McGhee Brickwork LtdFinishing trades
- L W Roofing (South) LtdRoofers
- Line Crew Construction LtdCivil engineering
- M Floyd Electrical LtdElectricians
- Oliver Engineering & Calibrations LimitedBuilders
- Paul Moreton Building Services LtdBuilders
- PSW Builders LtdBuilders
- R & H Carpentry LtdSpecialist contractors
- Rainscreen Systems LtdFinishing trades
- Robert Tutt & Sons LtdBuilders
- Rooftops Carpentry LtdJoiners and carpenters
- S Bowers Construction LtdFinishing trades
What happens if Underground Power Cables 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16025586
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2024 (1 year ago)
- Registered office
- Unit F1, Northumberland Road, Southsea, PO5 1DS
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 16 October 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Southsea
Other active specialist construction companies registered in Southsea.
- Vyomir Limited2021
- Westcote Heritage Ltd2020
- White Property Maintenance Limited2012
- Whyteleafe Paving Company Ltd2002
- Wise Works Limited2026
- Wright Retail Services Ltd2015
- Alltypefixing.Av Ltd2014
- CM Brickwork Ltd2026
All specialist construction companies in Southsea · All trades in Southsea · Specialist contractors across the UK
Frequently asked questions
When are Underground Power Cables Ltd's accounts due?
Underground Power Cables Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Underground Power Cables Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Underground Power Cables Ltd still trading?
Underground Power Cables 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 Underground Power Cables Ltd do?
Underground Power Cables Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Underground Power Cables Ltd?
Underground Power Cables Ltd was incorporated on 17 October 2024, 1 year ago.
What is the penalty if Underground Power Cables 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 Underground Power Cables 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.