- Companies
- Civil engineering
- Darlington
- Thurlwell Engineering Ltd
Thurlwell Engineering Ltd
- Company number
- 16174885
- Incorporated
- 10 Jan 20251 year trading
- Registered office
- 67 Duke Street, Darlington, County Durham, DL3 7SD
- Nature of business
- Construction of other civil engineering projects n.e.c.
Thurlwell Engineering Ltd is a 1-year-old private limited company registered in Darlington, company number 16174885, one of 42 civil engineering contractors in Darlington. 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 Thurlwell Engineering Ltd is registered
The registered office is in Darlington (DL3), in the Darlington local authority area, North East. Show DL3 7SD on a map.
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Also registered at this address
6 other companies use the same registered office as Thurlwell Engineering Ltd.
- Aquashield (North East) LimitedGlaziers
- Gravity Demolition LtdGroundworks and demolition
- J & C Boardline LtdBuilders
- MSV Building Contractors LtdProperty developers
- Stablers Garage LimitedMechanics and garages
- Talon Electrical North East LimitedElectricians
What happens if Thurlwell Engineering 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 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
- 16174885
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 January 2025 (1 year ago)
- Registered office
- 67 Duke Street, Darlington, County Durham, DL3 7SD
- 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
- 9 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 Darlington
Other active civil engineering contractors registered in Darlington.
- Todds Highway Maintenance Limited1996
- W.F. Contractors Ltd2012
- Wharton Construction Limited1985
- Zapbyte Ltd2025
- Ba Engineer Ltd2016
- BMD Civils Ltd2019
- Buzz Construction Services Ltd2026
- C. Robson Building Services Limited2003
All civil engineering contractors in Darlington · All trades in Darlington · Civil engineering across the UK
Frequently asked questions
When are Thurlwell Engineering Ltd's accounts due?
Thurlwell Engineering Ltd's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is Thurlwell Engineering Ltd'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 Thurlwell Engineering Ltd still trading?
Thurlwell Engineering 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 Thurlwell Engineering Ltd do?
Thurlwell Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Thurlwell Engineering Ltd?
Thurlwell Engineering Ltd was incorporated on 10 January 2025, 1 year ago.
What is the penalty if Thurlwell Engineering 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 Thurlwell Engineering 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.