- Companies
- Civil engineering
- Darlington
- Wharton Construction Limited
Wharton Construction Limited
- Company number
- 01943490
- Incorporated
- 2 Sep 198541 years trading
- Registered office
- Kellaw Road, Yarm Road Business Park, Darlington, Co Durham, DL1 4YA
- Nature of business
- Construction of other civil engineering projects n.e.c.
Wharton Construction Limited is a 41-year-old private limited company registered in Darlington, company number 01943490, one of 42 civil engineering contractors in Darlington. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 £620K (+43.8%) on the year before, to £2M.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £5.6M against £4M owed within a year: 1.4 times cover.
- 32 employees on average, down from 33 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £2M | £3.1M | £5.6M | £4M | 32 |
| 30 Sep 2024 | £1.4M | £1.4M | £3.7M | £2.7M | 33 |
| 30 Sep 2023 | £1M | £1.6M | £4.1M | £3.4M | 31 |
| 30 Sep 2022 | £603K | £1.6M | £3.9M | £3.6M | 31 |
| 30 Sep 2021 | £379K | £237K | £2.3M | £2M | 28 |
| 30 Sep 2020 | £266K | £130K | £1.1M | £920K | 33 |
| 30 Sep 2019 | £764K | £70K | £1.7M | £1.1M | 42 |
| 30 Sep 2018 | £820K | £434 | £1.7M | £1M | 47 |
Public contracts won
Wharton Construction Limited has 15 public sector contract awards on record; the ones with their own published value total £6.1M, from 2015 to 2026. Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 9 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Middlesbrough Council6 awards
- Stockton Borough Council6 awards
- North Yorkshire County Council1 award
- Hartlepool Borough Council1 award
- Darlington Borough Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Middlesbrough Council | R081 - Depot extension | £1.2M | 9 Jan 2026 |
| Stockton Borough Council | Yarm Town Hall Restoration, Alteration & Refurbishment | £579K | 3 Oct 2022 |
| Middlesbrough Council | Cannon Park Industrial Units 4 to 6 - recladding and associated works | £170K | 5 Jan 2022 |
| Middlesbrough Council | WMCC - Floors, Drainage and WC | £43K | 22 Nov 2021 |
| Middlesbrough Council | Phoenix Lodge - Car Park Improvements | £50K | 10 Nov 2021 |
| Stockton Borough Council | Contract for the extension and alterations at Myton Park Primary | £514K | 15 Dec 2020 |
| Middlesbrough Council | Park End Primary School | £220K | 1 May 2020 |
| North Yorkshire County Council | Additional Classroom Extension & Internal remodelling at Killinghall Primary School | £315K | 4 Mar 2020 |
| Middlesbrough Council | Dorman Museum Shop Fire Alarm | £79K | 16 Dec 2019 |
| Hartlepool Borough Council | Extension to the Main Hall at Clavering Primary School, Hartlepool | £129K | 25 Jun 2019 |
Showing the 10 most recent of 15.
Where Wharton Construction Limited is registered
The registered office is in Darlington (DL1), in the Darlington local authority area, North East. Show DL1 4YA on a map.
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Also registered at this address
1 other company uses the same registered office as Wharton Construction Limited.
- React (Northern) LimitedMachinery repair and installation
What happens if Wharton Construction 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 01943490
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 September 1985 (41 years ago)
- Registered office
- Kellaw Road, Yarm Road Business Park, Darlington, Co Durham, DL1 4YA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 21 October 2025
- Charges (mortgages)
- 0 outstanding of 3 registered
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.
- Zapbyte Ltd2025
- Ba Engineer Ltd2016
- BMD Civils Ltd2019
- Buzz Construction Services Ltd2026
- C. Robson Building Services Limited2003
- Dec Groundworks Ltd2012
- DS Suction Excavation Ltd2025
- Euro Surface Tech Ltd2011
All civil engineering contractors in Darlington · All trades in Darlington · Civil engineering across the UK
Frequently asked questions
When are Wharton Construction Limited's accounts due?
Wharton Construction Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Wharton Construction Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Wharton Construction Limited still trading?
Wharton Construction 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 Wharton Construction Limited do?
Wharton Construction Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Wharton Construction Limited?
Wharton Construction Limited was incorporated on 2 September 1985, 41 years ago.
Has Wharton Construction Limited won public sector contracts?
Yes. Wharton Construction Limited has 15 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £6.1M), most recently from Middlesbrough Council.
What is the penalty if Wharton Construction 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 Wharton Construction 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.