- Companies
- Property developers
- Belfast
- Quantum Notes Ltd
Quantum Notes Ltd
- Company number
- NI727366
- Incorporated
- 12 Mar 20251 year trading
- Registered office
- 3RD Floor Arnott House, 12-16 Bridge Street, Belfast, BT1 1LU
- Nature of business
- Development of building projects; Buying and selling of own real estate; Other professional, scientific and technical activities n.e.c.; Performing arts
Quantum Notes Ltd is a 1-year-old private limited company registered in Belfast, company number NI727366, one of 402 property development companies in Belfast. Its next accounts are due at Companies House on 12 December 2026, and its first CT600 is due at HMRC on 11 March 2027.
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.
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Where Quantum Notes Ltd is registered
The registered office is in Belfast (BT1), in the Belfast local authority area, Northern Ireland. Show BT1 1LU on a map.
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Also registered at this address
1 other company uses the same registered office as Quantum Notes Ltd.
- Garren FM LtdFinishing trades
What happens if Quantum Notes 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 12 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 13 Dec 2026 to 12 Jan 2027 | £150 |
| 1 to 3 months late | 13 Jan 2027 to 12 Mar 2027 | £375 |
| 3 to 6 months late | 13 Mar 2027 to 12 Jun 2027 | £750 |
| More than 6 months late | From 13 Jun 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
- NI727366
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 March 2025 (1 year ago)
- Registered office
- 3RD Floor Arnott House, 12-16 Bridge Street, Belfast, BT1 1LU
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100)
Other professional, scientific and technical activities n.e.c. (SIC 74909)
Performing arts (SIC 90010) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 11 March 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.
- Quigg Developments Ltd2007
- Quinnstyle Ltd2016
- R.S. & J. Holdings Limited1965
- Raf Houses Limited2020
- Rampart Street Developments Ltd2025
- Raptor Group Holdings Ltd2016
- Rare Space Ltd2021
- Ravav Limited2017
All property development companies in Belfast · All trades in Belfast · Property developers across the UK
Frequently asked questions
When are Quantum Notes Ltd's accounts due?
Quantum Notes Ltd's next accounts are due at Companies House by 12 December 2026 (in 60 days), covering the period to 31 March 2026.
When is Quantum Notes 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 11 March 2026, due by 11 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Quantum Notes Ltd still trading?
Quantum Notes 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 Quantum Notes Ltd do?
Quantum Notes Ltd is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100); Other professional, scientific and technical activities n.e.c. (SIC 74909); Performing arts (SIC 90010).
How old is Quantum Notes Ltd?
Quantum Notes Ltd was incorporated on 12 March 2025, 1 year ago.
What is the penalty if Quantum Notes 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 Quantum Notes 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.