- Companies
- Builders
- Peterborough
- Eastern Substructures Ltd
Eastern Substructures Ltd
- Company number
- 16354528
- Incorporated
- 31 Mar 20251 year trading
- Registered office
- 22 Jubilee Drive, Market Deeping, Peterborough, PE6 8FR
- Nature of business
- Construction of domestic buildings
Eastern Substructures Ltd is a 1-year-old private limited company registered in Peterborough, company number 16354528, one of 296 building contractors in Peterborough. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where Eastern Substructures Ltd is registered
The registered office is in Peterborough (PE6), in the South Kesteven local authority area, East Midlands. Show PE6 8FR on a map.
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What happens if Eastern Substructures 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16354528
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2025 (1 year ago)
- Registered office
- 22 Jubilee Drive, Market Deeping, Peterborough, PE6 8FR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 30 March 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Peterborough
Other active building contractors registered in Peterborough.
- Eastgate Property Solutions Limited2025
- Eastlands Limited2016
- Eduards Construction Ltd2019
- Edy & Matt Consulting Ltd2017
- Eezi Corporation Ltd2026
- Elite Brick & Stonework Limited2024
- Elton Homes Limited1999
- Euro Kitchens & Bathrooms Limited2015
All building contractors in Peterborough · All trades in Peterborough · Builders across the UK
Frequently asked questions
When are Eastern Substructures Ltd's accounts due?
Eastern Substructures Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Eastern Substructures Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Eastern Substructures Ltd still trading?
Eastern Substructures 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 Eastern Substructures Ltd do?
Eastern Substructures Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Eastern Substructures Ltd?
Eastern Substructures Ltd was incorporated on 31 March 2025, 1 year ago.
What is the penalty if Eastern Substructures 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 Eastern Substructures 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.