- Companies
- Property developers
- London
- Quintain Alto Developments Limited
Quintain Alto Developments Limited
- Company number
- 09546041
- Incorporated
- 16 Apr 201511 years trading
- Registered office
- 180 Great Portland Street, London, W1W 5QZ
- Nature of business
- Development of building projects; Buying and selling of own real estate
Quintain Alto Developments Limited is a 11-year-old private limited company registered in London, company number 09546041, one of 14,100 property development companies in London. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Quintain Alto Developments Limited is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5QZ on a map.
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Also registered at this address
3 other companies use the same registered office as Quintain Alto Developments Limited.
- Disknote LimitedProperty developers
- Flatplate LimitedProperty developers
- Wembley W06A Commercial Investments LimitedProperty developers
What happens if Quintain Alto Developments Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 09546041
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 April 2015 (11 years ago)
- Registered office
- 180 Great Portland Street, London, W1W 5QZ
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 16 April 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
- Previous names
- Quintain Keystone Alto Developments Limited (until 23 Feb 2017)
Quintain JV Alto Developments Limited (until 27 Apr 2015)
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 London
Other active property development companies registered in London.
- Quintessential Evolution Limited2017
- Quoin Construct Limited2021
- Quora Property Group Ltd2022
- Quottify Ltd2014
- Quys Ltd2026
- QV Construction Limited2012
- R & A Solutions Limited1997
- R & D Developments (Kent) Limited2007
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Quintain Alto Developments Limited's accounts due?
Quintain Alto Developments Limited's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Quintain Alto Developments Limited's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Quintain Alto Developments Limited still trading?
Quintain Alto Developments Limited is listed as active on the Companies House register (checked 12 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 Quintain Alto Developments Limited do?
Quintain Alto Developments Limited is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100).
How old is Quintain Alto Developments Limited?
Quintain Alto Developments Limited was incorporated on 16 April 2015, 11 years ago.
What is the penalty if Quintain Alto Developments Limited 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 Quintain Alto Developments Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.