- Companies
- Civil engineering
- Sutton
- A4 Design Structural Engineers Ltd
A4 Design Structural Engineers Ltd
- Company number
- 07176066
- Incorporated
- 3 Mar 201016 years trading
- Registered office
- 28 Burgess Road, Sutton, SM1 1RW
- Nature of business
- Construction of other civil engineering projects n.e.c.
A4 Design Structural Engineers Ltd is a 16-year-old private limited company registered in Sutton, company number 07176066, one of 33 civil engineering contractors in Sutton. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for A4 Design Structural Engineers LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £5,245 (+3.7%) on the year before, to £146K.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £188K against £42K owed within a year: 4.4 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 | £146K | £108K | £188K | £42K | 1 |
| 31 Mar 2024 | £141K | £70K | £186K | £46K | 1 |
| 31 Mar 2023 | £130K | £80K | £181K | £51K | 1 |
| 31 Mar 2022 | £93K | £76K | £136K | £43K | 2 |
| 31 Mar 2021 | £78K | £76K | £113K | £37K | 2 |
| 31 Mar 2020 | £78K | £69K | £125K | £47K | 2 |
| 31 Mar 2019 | £63K | £56K | £96K | £34K | |
| 31 Mar 2018 | £55K | £53K | £84K | £30K | |
| 31 Mar 2017 | £45K | ||||
| 31 Mar 2016 | £48K | £59K | £86K | £38K |
Where A4 Design Structural Engineers Ltd is registered
The registered office is in Sutton (SM1), in the Sutton local authority area, London. Show SM1 1RW on a map.
Other trade companies in SM1
- GML Landscaping & Tree Care LtdLandscapers and gardeners
- Alfa Sprint LtdMechanics and garages
- Roadside Help LtdMotor traders
- Pivotal Cleaning LtdCleaning companies
- Patchs Builder LimitedFinishing trades
- Leo Windows LimitedGlaziers
- MJG Motorworks LtdMechanics and garages
- Macgregor Landscapes and Gardens LtdLandscapers and gardeners
What happens if A4 Design 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 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
- 07176066
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 March 2010 (16 years ago)
- Registered office
- 28 Burgess Road, Sutton, SM1 1RW
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 March 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Sutton
Other active civil engineering contractors registered in Sutton.
- Alin Alpin Ltd2011
- Anuciya Constructions Ltd2016
- Bac Home Improvements Limited2017
- Bywater Rail Limited2010
- Chama (PVT) Ltd2013
- Cheyham Limited2014
- Dcabling Communications Ltd2011
- Energ-Eyes Limited2014
All civil engineering contractors in Sutton · All trades in Sutton · Civil engineering across the UK
Frequently asked questions
When are A4 Design Structural Engineers Ltd's accounts due?
A4 Design Structural Engineers Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is A4 Design Structural Engineers 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 A4 Design Structural Engineers Ltd still trading?
A4 Design 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 A4 Design Structural Engineers Ltd do?
A4 Design Structural Engineers Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is A4 Design Structural Engineers Ltd?
A4 Design Structural Engineers Ltd was incorporated on 3 March 2010, 16 years ago.
What is the penalty if A4 Design 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 A4 Design 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.