- Companies
- Groundworks and demolition
- Castlewellan
- Jam Civils & Utilities Ltd
Jam Civils & Utilities Ltd
- Company number
- NI739025
- Incorporated
- 20 Mar 2026
- Registered office
- 16 Upper Square, Castlewellan, BT31 9DD
- Nature of business
- Site preparation
Jam Civils & Utilities Ltd is a newly incorporated private limited company registered in Castlewellan, company number NI739025, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 20 December 2027, and its first CT600 is due at HMRC on 19 March 2028.
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.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Jam Civils & Utilities LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Jam Civils & Utilities Ltd is registered
The registered office is in Castlewellan (BT31), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT31 9DD on a map.
Other trade companies in BT31
- Ogm26 LtdGroundworks and demolition
- Treadline Tyre & Auto Services LtdMechanics and garages
- CB Fire Compliance LimitedSpecialist contractors
- Cea Joinery LtdJoiners and carpenters
- NI.CBR LtdMechanics and garages
- S.D.E Electrical Systems LtdElectricians
- B McVeigh Mechanical LtdPlumbers and heating engineers
- Dundrinne Developments LimitedProperty developers
Also registered at this address
18 other companies use the same registered office as Jam Civils & Utilities Ltd.
- Agd Plumbing & Heating LtdPlumbers and heating engineers
- B R Building & Joinery LimitedFinishing trades
- Cea Joinery LtdJoiners and carpenters
- Cisco Plumbing & Heating LtdPlumbers and heating engineers
- Clonkeel Joinery LtdProperty developers
- CMC Surfacing & Groundwork LtdBuilders
- Construction Sealants (Ireland) LtdSpecialist contractors
- Echo Direct Construction LtdBuilders
- Kelly New Homes LimitedBuilders
- KP Civil LtdGroundworks and demolition
- Mark Gallagher Building LtdBuilders
- Matthews Electrical Services (N.I.) LimitedElectricians
- MJD Building LtdBuilders
- Morgan Plumbing Services LtdPlumbers and heating engineers
- PDM Plumbing Services LtdPlumbers and heating engineers
- RW Carpentry & Construction LtdJoiners and carpenters
- S.D.E Electrical Systems LtdElectricians
- Seac Electrical LtdElectricians
What happens if Jam Civils & Utilities 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 20 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Dec 2027 to 20 Jan 2028 | £150 |
| 1 to 3 months late | 21 Jan 2028 to 20 Mar 2028 | £375 |
| 3 to 6 months late | 21 Mar 2028 to 20 Jun 2028 | £750 |
| More than 6 months late | From 21 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- NI739025
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 March 2026
- Registered office
- 16 Upper Square, Castlewellan, BT31 9DD
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Castlewellan
Other active groundworks and demolition companies registered in Castlewellan.
- KP Civil Ltd2019
- Ogm26 Ltd2026
- Herron Contracts Limited2018
All groundworks and demolition companies in Castlewellan · All trades in Castlewellan · Groundworks and demolition across the UK
Frequently asked questions
When are Jam Civils & Utilities Ltd's accounts due?
Jam Civils & Utilities Ltd's next accounts are due at Companies House by 20 December 2027 (in 433 days), covering the period to 31 March 2027.
When is Jam Civils & Utilities 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 19 March 2027, due by 19 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Jam Civils & Utilities Ltd still trading?
Jam Civils & Utilities 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 Jam Civils & Utilities Ltd do?
Jam Civils & Utilities Ltd is registered under Site preparation (SIC 43120).
How old is Jam Civils & Utilities Ltd?
Jam Civils & Utilities Ltd was incorporated on 20 March 2026, less than a year ago.
What is the penalty if Jam Civils & Utilities 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 Jam Civils & Utilities 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.