- Companies
- Property developers
- Belfast
- Onyx Development & Construction Ltd
Onyx Development & Construction Ltd
- Company number
- NI646050
- Incorporated
- 25 May 20179 years trading
- Registered office
- 10 Pilots View, Heron Road, Belfast, BT3 9LE
- Nature of business
- Development of building projects; Buying and selling of own real estate
Onyx Development & Construction Ltd is a 9-year-old private limited company registered in Belfast, company number NI646050, one of 402 property development companies in Belfast. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £8,463 (+23.2%) on the year before, to £45K.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £381K against £5,193 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £45K | £26K | £381K | £5,193 | 0 |
| 31 May 2024 | £36K | £47K | £380K | £7,845 | 0 |
| 31 May 2023 | £27K | £50K | £361K | £4,901 | 0 |
| 31 May 2022 | £17K | £66K | £355K | £11K | 0 |
| 31 May 2021 | £14K | £12K | £341K | £5,578 | 0 |
| 31 May 2020 | £4,066 | £172K | £2,151 | 0 | |
| 31 May 2019 | £14 | ||||
| 31 May 2018 | £14 |
Where Onyx Development & Construction Ltd is registered
The registered office is in Belfast (BT3), in the Belfast local authority area, Northern Ireland. Show BT3 9LE on a map.
Other trade companies in BT3
- Lagan Ground Engineering LimitedSpecialist contractors
- Glenavy Site LtdProperty developers
- Rosemount Homes (101) LimitedProperty developers
- Rosemount Homes (102) LimitedProperty developers
- Lagan Specialist International LimitedCivil engineering
- Lagan Agl LimitedElectricians
- Clyde Furnishing Belfast LtdJoiners and carpenters
- H&J Martin Fit Out LimitedProperty developers
Also registered at this address
11 other companies use the same registered office as Onyx Development & Construction Ltd.
- Am/PM Facility Services LtdCleaning companies
- Archer Automobiles LtdMotor traders
- Avoda Construction LtdBuilders
- Drumlin Developments LtdBuilders
- Long Meadow Developments LtdBuilders
- Prestige Building Contracts LtdBuilders
- Property Preservation & Building LtdProperty developers
- Rampart Street Developments LtdProperty developers
- Rubyann (Kircubbin) LtdBuilders
- Solar NRG LimitedPlumbers and heating engineers
- Tractor Spares (N.I.) LimitedMotor traders
What happens if Onyx Development & 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- NI646050
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 May 2017 (9 years ago)
- Registered office
- 10 Pilots View, Heron Road, Belfast, BT3 9LE
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 24 May 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Belfast
Other active property development companies registered in Belfast.
- Ormeau Parkview Ltd2026
- Ors Building Consultants Limited2026
- Osprey Pacific Quay Limited2019
- P.G.L Properties (N.I.) Ltd2020
- Pakar Limited2017
- Paxton Partners Limited2016
- Peaceline Properties Ltd2024
- PJL Ltd2026
All property development companies in Belfast · All trades in Belfast · Property developers across the UK
Frequently asked questions
When are Onyx Development & Construction Ltd's accounts due?
Onyx Development & Construction Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Onyx Development & Construction Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Onyx Development & Construction Ltd still trading?
Onyx Development & 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 Onyx Development & Construction Ltd do?
Onyx Development & Construction Ltd is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100).
How old is Onyx Development & Construction Ltd?
Onyx Development & Construction Ltd was incorporated on 25 May 2017, 9 years ago.
What is the penalty if Onyx Development & 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 Onyx Development & 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.