- Companies
- Civil engineering
- Stowmarket
- Def Construction Services Limited
Def Construction Services Limited
- Company number
- 16203810
- Incorporated
- 23 Jan 20251 year trading
- Registered office
- 74 Reeds Way, Stowupland, Stowmarket, Suffolk, IP14 4UP
- Nature of business
- Construction of other civil engineering projects n.e.c.
Def Construction Services Limited is a 1-year-old private limited company registered in Stowmarket, company number 16203810, one of 18 civil engineering contractors in Stowmarket. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 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 January 2026, as filed at Companies House.
Where Def Construction Services Limited is registered
The registered office is in Stowmarket (IP14), in the Mid Suffolk local authority area, East of England. Show IP14 4UP on a map.
Other trade companies in IP14
- Ipswich Flat Roofing Solutions LimitedRoofers
- Wilkinson Contracting LimitedBuilders
- LBK Asbestos Suffolk LtdCleaning companies
- Fault Protection LtdElectricians
- Dennis Automotive Group LtdMotor traders
- JRB Carpentry & Joinery LtdJoiners and carpenters
- Suffolk Car and Van LtdMotor traders
- Site Ready Services LimitedCleaning companies
What happens if Def Construction Services Limited 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16203810
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 January 2025 (1 year ago)
- Registered office
- 74 Reeds Way, Stowupland, Stowmarket, Suffolk, IP14 4UP
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 22 January 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 Stowmarket
Other active civil engineering contractors registered in Stowmarket.
- Grid Electrical Safety Ltd2019
- Groundscape Projects Ltd2022
- Kalo Civil Engineering Ltd2023
- Lewson Construction Limited2019
- Lmbee Limited2017
- Marine Team Ltd2022
- MJD Agri Services Ltd2024
- Moore Reinforced Concrete Limited2012
All civil engineering contractors in Stowmarket · All trades in Stowmarket · Civil engineering across the UK
Frequently asked questions
When are Def Construction Services Limited's accounts due?
Def Construction Services Limited's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is Def Construction Services Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Def Construction Services Limited still trading?
Def Construction Services Limited 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 Def Construction Services Limited do?
Def Construction Services Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Def Construction Services Limited?
Def Construction Services Limited was incorporated on 23 January 2025, 1 year ago.
What is the penalty if Def Construction Services 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 Def Construction Services Limited 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.