- Company number
- NI640770
- Incorporated
- 12 Sep 201610 years trading
- Registered office
- 31C Dundrum Road, Newcastle, Co. Down, BT33 0BG
- Nature of business
- Construction of commercial buildings
Castle Contracts (Newcastle) Ltd is a 10-year-old private limited company registered in Newcastle, company number NI640770, one of 57 building contractors in Newcastle. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £33K (+6.5%) on the year before, to £548K.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £621K against £74K owed within a year: 8.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £548K | £621K | £74K | 1 | |
| 31 Mar 2025 | £515K | £694K | £182K | 1 | |
| 31 Mar 2024 | £392K | £896K | £42K | 1 | |
| 31 Mar 2023 | £361K | £891K | £65K | 1 | |
| 31 Mar 2022 | £201K | £1.2M | £137K | 1 | |
| 31 Mar 2021 | £115K | £1M | £73K | 1 | |
| 31 Mar 2020 | £88K | £687K | £24K | 1 | |
| 31 Mar 2019 | £76K | £170K | £94K | ||
| 31 Mar 2018 | £66K | £226K | £161K | ||
| 31 Mar 2017 | -£4,389 | £120K | £125K |
Where Castle Contracts (Newcastle) Ltd is registered
The registered office is in Newcastle (BT33), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT33 0BG on a map.
Other trade companies in BT33
- Tollymore Construction LtdBuilders
- East Coast Cooling LtdPlumbers and heating engineers
- Web Assets LtdCleaning companies
- Altnadue Mechanical Services LtdPlumbers and heating engineers
- Mourne Fire & Electrical LtdElectricians
- DMK Design and Build LtdBuilders
- Hawkins Electrical Contracts LtdElectricians
- C H P Mechanical (NI) LtdPlumbers and heating engineers
Also registered at this address
3 other companies use the same registered office as Castle Contracts (Newcastle) Ltd.
- Ardara LtdBuilders
- John Rodgers LimitedBuilders
- McConville and McSherry LimitedBuilders
What happens if Castle Contracts (Newcastle) 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 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
- NI640770
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 September 2016 (10 years ago)
- Registered office
- 31C Dundrum Road, Newcastle, Co. Down, BT33 0BG
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 11 September 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 Newcastle
Other active building contractors registered in Newcastle.
- Clift Developments Limited2018
- Crossburn Contracts Ltd2025
- DMK Design and Build Ltd2026
- Downey Construction Ltd2006
- Grice Brickwork Ltd2025
- Halfern Limited1999
- Hencie Homes Ltd2021
- Hornby Developments Limited2015
All building contractors in Newcastle · All trades in Newcastle · Builders across the UK
Frequently asked questions
When are Castle Contracts (Newcastle) Ltd's accounts due?
Castle Contracts (Newcastle) Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Castle Contracts (Newcastle) Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Castle Contracts (Newcastle) Ltd still trading?
Castle Contracts (Newcastle) 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 Castle Contracts (Newcastle) Ltd do?
Castle Contracts (Newcastle) Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Castle Contracts (Newcastle) Ltd?
Castle Contracts (Newcastle) Ltd was incorporated on 12 September 2016, 10 years ago.
What is the penalty if Castle Contracts (Newcastle) 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 Castle Contracts (Newcastle) 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.