- Companies
- Builders
- Downpatrick
- DPH Construction Ltd
DPH Construction Ltd
- Company number
- NI033416
- Incorporated
- 16 Dec 199728 years trading
- Registered office
- 109 Ballyculter Road, Strangford, Downpatrick, Co Down, BT30 7BB
- Nature of business
- Construction of domestic buildings
DPH Construction Ltd is a 28-year-old private limited company registered in Downpatrick, company number NI033416, one of 28 building contractors in Downpatrick. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
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 £259K (+28.3%) on the year before, to £1.2M.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £873K against £593K owed within a year: 1.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1.2M | £113K | £873K | £593K | 1 |
| 31 Mar 2024 | £913K | £164K | £505K | £473K | 1 |
| 31 Mar 2023 | £639K | £29K | £307K | £423K | 2 |
| 31 Mar 2022 | £506K | £53K | £256K | £457K | 2 |
| 31 Mar 2021 | £359K | £86K | £184K | £439K | 2 |
| 31 Mar 2020 | £382K | £107K | £305K | £509K | 1 |
| 31 Mar 2019 | £247K | £198K | £533K | 1 | |
| 31 Mar 2018 | £195K | £76K | £446K | ||
| 31 Mar 2017 | £167K | £55K | £440K | ||
| 31 Mar 2016 | £139K | £27K | £48K | £451K |
Public contracts won
DPH Construction Ltd has one public sector contract award on record; the ones with their own published value total £76K (2026). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Newry, Mourne and Down District Council (NMD) | CA18108 - Tender 40/2026 - SAUL Theme 1 - Upgrade Works to Clubhouse Facilities - PP1018 | £76K | 20 Aug 2026 |
Where DPH Construction Ltd is registered
The registered office is in Downpatrick (BT30), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT30 7BB on a map.
Other trade companies in BT30
- Ajc GRP LtdElectricians
- S J B Painting LtdPainters and decorators
- Corinas Cleaning LtdCleaning companies
- I P Recovery LimitedMechanics and garages
- Loughview Trading Co LimitedInstallers
- Titan Fabric and Surface LtdCleaning companies
- MCC&R LtdProperty developers
- Willow Cove Contracts LtdGroundworks and demolition
What happens if DPH Construction 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- NI033416
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 December 1997 (28 years ago)
- Registered office
- 109 Ballyculter Road, Strangford, Downpatrick, Co Down, BT30 7BB
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 23 November 2025
- Charges (mortgages)
- 2 outstanding of 4 registered
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 Downpatrick
Other active building contractors registered in Downpatrick.
- Edgewater Limited1999
- G Macauley Plastering Ltd2025
- Grant Bros Developments Ltd2014
- Hanna & Smyth Contracts Ltd2015
- Horizon Design & Build Ltd2026
- Intire Fitout Ltd2024
- Island Construction Ltd2026
- J P Contracts NI Limited2013
All building contractors in Downpatrick · All trades in Downpatrick · Builders across the UK
Frequently asked questions
When are DPH Construction Ltd's accounts due?
DPH Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is DPH Construction Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is DPH Construction Ltd still trading?
DPH Construction 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 DPH Construction Ltd do?
DPH Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is DPH Construction Ltd?
DPH Construction Ltd was incorporated on 16 December 1997, 28 years ago.
Has DPH Construction Ltd won public sector contracts?
Yes. DPH Construction Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £76K), most recently from Newry, Mourne and Down District Council (NMD).
What is the penalty if DPH Construction 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 DPH Construction 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.