P & T Diamond Ltd
- Company number
- NI067159
- Incorporated
- 16 Nov 200718 years trading
- Registered office
- 56 Deerpark Road, Bellaghy, BT45 8BS
- Nature of business
- Construction of commercial buildings
P & T Diamond Ltd is a 18-year-old private limited company, company number NI067159, one of the UK's building contractors. Its next accounts are due at Companies House on 30 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
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 £119K (+16.1%) on the year before, to £858K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £873K against £284K owed within a year: 3.1 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | £858K | £641K | £873K | £284K | 3 |
| 30 Nov 2023 | £739K | £791K | £977K | £506K | 3 |
| 30 Nov 2022 | £656K | £681K | £947K | £539K | 3 |
| 30 Nov 2021 | £530K | £519K | £746K | £502K | 3 |
| 30 Nov 2020 | £562K | £515K | £802K | £510K | 3 |
| 30 Nov 2019 | £530K | £408K | £727K | £402K | 1 |
| 30 Nov 2018 | £522K | £310K | £711K | £416K | 3 |
| 30 Nov 2017 | £524K | £410K | £589K | £248K | 3 |
| 30 Nov 2016 | £463K | £503K | £611K | £256K | |
| 30 Nov 2015 | £411K | £396K | £586K | £263K |
Where P & T Diamond Ltd is registered
The registered office is in the BT45 postcode district, in the Mid Ulster local authority area, Northern Ireland. Show BT45 8BS on a map.
Other trade companies in BT45
- Oakleaf Modular Solutions LimitedSpecialist contractors
- Decorfinishni LtdPainters and decorators
- Tonagh Construction Services LtdSpecialist contractors
- Es Brickwork LtdSpecialist contractors
- CSS Ireland LtdSpecialist contractors
- 825 Contracts LtdBuilders
- Vind Services LtdMachinery repair and installation
- Braidwater (Strategic Land) LimitedProperty developers
What happens if P & T Diamond 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- NI067159
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 November 2007 (18 years ago)
- Registered office
- 56 Deerpark Road, Bellaghy, BT45 8BS
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 10 November 2025
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
Other active building contractors.
Frequently asked questions
When are P & T Diamond Ltd's accounts due?
P & T Diamond Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is P & T Diamond 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 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is P & T Diamond Ltd still trading?
P & T Diamond 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 P & T Diamond Ltd do?
P & T Diamond Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is P & T Diamond Ltd?
P & T Diamond Ltd was incorporated on 16 November 2007, 18 years ago.
What is the penalty if P & T Diamond 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 P & T Diamond 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.