- Companies
- Property developers
- London
- Ag Structural Engineers Ltd
Ag Structural Engineers Ltd
- Company number
- 17160417
- Incorporated
- 15 Apr 2026
- Registered office
- 351A Hornsey Road, London, N19 4HF
- Nature of business
- Development of building projects; Construction of domestic buildings; Engineering related scientific and technical consulting activities; Other engineering activities
Ag Structural Engineers Ltd is a newly incorporated private limited company registered in London, company number 17160417, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 15 January 2028, and its first CT600 is due at HMRC on 14 April 2028.
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 Ag Structural Engineers Ltd is registered
The registered office is in London (N19), in the Islington local authority area, London. Show N19 4HF on a map.
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What happens if Ag Structural Engineers 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 15 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 16 Jan 2028 to 15 Feb 2028 | £150 |
| 1 to 3 months late | 16 Feb 2028 to 15 Apr 2028 | £375 |
| 3 to 6 months late | 16 Apr 2028 to 15 Jul 2028 | £750 |
| More than 6 months late | From 16 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 2029 | 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
- 17160417
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 April 2026
- Registered office
- 351A Hornsey Road, London, N19 4HF
- Nature of business
- Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202)
Engineering related scientific and technical consulting activities (SIC 71122)
Other engineering activities (SIC 71129) - Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Aga Interiors Ltd2024
- Aga Investment Properties Ltd2018
- Agb Building Limited2012
- Agb Concept Limited2026
- Agd General Services Ltd2014
- Agehall Limited1990
- Agemain Limited1993
- Agentis UK Limited2022
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Ag Structural Engineers Ltd's accounts due?
Ag Structural Engineers Ltd's next accounts are due at Companies House by 15 January 2028 (in 460 days), covering the period to 30 April 2027.
When is Ag Structural Engineers 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 14 April 2027, due by 14 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ag Structural Engineers Ltd still trading?
Ag Structural Engineers 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 Ag Structural Engineers Ltd do?
Ag Structural Engineers Ltd is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202); Engineering related scientific and technical consulting activities (SIC 71122); Other engineering activities (SIC 71129).
How old is Ag Structural Engineers Ltd?
Ag Structural Engineers Ltd was incorporated on 15 April 2026, less than a year ago.
What is the penalty if Ag Structural Engineers 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 Ag Structural Engineers 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.