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  4. B.T. O'Sullivan Construction Solutions Limited

B.T. O'Sullivan Construction Solutions Limited

ActiveUnaudited abridged accountsCivil engineeringWigan
Company number
08739226
Incorporated
18 Oct 201312 years trading
Registered office
Crows Nest Business Park Ashton Road, Billinge, Wigan, WN5 7XX
Nature of business
Construction of other civil engineering projects n.e.c.; Engineering related scientific and technical consulting activities
Accounts due in
352 days
30 Sep 2027
Net assets
£1.3M▲
+47.5% on the year before
Cash at bank
£1.1M▲
At 31 Dec 2025
Employees
3
Average during the year
From the Companies House register, 1 Oct 2026

B.T. O'Sullivan Construction Solutions Limited is a 12-year-old private limited company registered in Wigan, company number 08739226, one of 85 civil engineering contractors in Wigan. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Sep 2027
in 352 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 444 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 353 days
9 months and 1 day after the period end
Confirmation statement
1 Nov 2026
in 19 days
Last made up to 18 Oct 2025

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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 £423K (+47.5%) on the year before, to £1.3M.
  • Net assets rose in 9 of 9 year-on-year comparisons on record.
  • Current assets of £1.8M against £568K owed within a year: 3.2 times cover.
  • 3 employees on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K£1M31 December 2016: net assets £31K£31K201631 December 2017: net assets £147K£147K201731 December 2018: net assets £240K£240K201831 December 2019: net assets £277K£277K201931 December 2020: net assets £360K£360K202031 December 2021: net assets £468K£468K202131 December 2022: net assets £683K£683K202231 December 2023: net assets £798K£798K202331 December 2024: net assets £891K£891K202431 December 2025: net assets £1.3M£1.3M2025
Net assets at each year end, 2016 to 2025£0£500K£1M31 December 2016: net assets £31K£31K'1631 December 2017: net assets £147K£147K'1731 December 2018: net assets £240K£240K'1831 December 2019: net assets £277K£277K'1931 December 2020: net assets £360K£360K'2031 December 2021: net assets £468K£468K'2131 December 2022: net assets £683K£683K'2231 December 2023: net assets £798K£798K'2331 December 2024: net assets £891K£891K'2431 December 2025: net assets £1.3M£1.3M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£1.3M£1.1M£1.8M£568K3
31 Dec 2024£891K£348K£1.1M£248K3
31 Dec 2023£798K£611K£1.1M£408K3
31 Dec 2022£683K£290K£895K£302K2
31 Dec 2021£468K£314K£709K£278K2
31 Dec 2020£360K£250K£851K£542K2
31 Dec 2019£277K£170K£400K£199K3
31 Dec 2018£240K£85K£413K£243K3
31 Dec 2017£147K£162K£286K£163K3
31 Dec 2016£31K£30K£64K£35K2

Who runs and owns B.T. O'Sullivan Construction Solutions Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
S*** O***DirectorDec 2017
J*** O***DirectorDec 2018
1 former officer
NameRoleAppointedLeft
B*** O***DirectorOct 2013Oct 2019

Person with significant control

Individual · since Oct 2019
J*** O***
Owns 75% or more of the shares
Holds 75% or more of the votes

Where B.T. O'Sullivan Construction Solutions Limited is registered

B.T. O'Sullivan Construction Solutions Limited's registered office on a map of the UK

The registered office is in Wigan (WN5), in the Wigan local authority area, North West. Show WN5 7XX on a map.

Other trade companies in WN5

Also registered at this address

6 other companies use the same registered office as B.T. O'Sullivan Construction Solutions Limited.

What happens if B.T. O'Sullivan Construction Solutions 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 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 2028another 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
08739226
Status
Active
Company type
Private limited company
Incorporated
18 October 2013 (12 years ago)
Registered office
Crows Nest Business Park Ashton Road, Billinge, Wigan, WN5 7XX
Nature of business
Construction of other civil engineering projects n.e.c. (SIC 42990)
Engineering related scientific and technical consulting activities (SIC 71122)
Year end
31 December (accounting reference date)
Accounts type
Unaudited abridged
Last accounts made up to
31 December 2025
Last confirmation statement
18 October 2025
Previous names
B.T. Osullivan Construction Services Limited (until 21 Oct 2013)

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 Wigan

Other active civil engineering contractors registered in Wigan.

All civil engineering contractors in Wigan · All trades in Wigan · Civil engineering across the UK

Frequently asked questions

When are B.T. O'Sullivan Construction Solutions Limited's accounts due?

B.T. O'Sullivan Construction Solutions Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.

When is B.T. O'Sullivan Construction Solutions Limited's CT600 due?

The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.

Is B.T. O'Sullivan Construction Solutions Limited still trading?

B.T. O'Sullivan Construction Solutions 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 B.T. O'Sullivan Construction Solutions Limited do?

B.T. O'Sullivan Construction Solutions Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Engineering related scientific and technical consulting activities (SIC 71122).

How old is B.T. O'Sullivan Construction Solutions Limited?

B.T. O'Sullivan Construction Solutions Limited was incorporated on 18 October 2013, 12 years ago.

Who runs B.T. O'Sullivan Construction Solutions Limited?

B.T. O'Sullivan Construction Solutions Limited has 2 active directors, the longest-serving appointed in Dec 2017. Their names and service addresses are on the Companies House register.

Who owns B.T. O'Sullivan Construction Solutions Limited?

One person or company has significant control of B.T. O'Sullivan Construction Solutions Limited: an individual (owns 75% or more of the shares).

What is the penalty if B.T. O'Sullivan Construction Solutions 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 B.T. O'Sullivan Construction Solutions Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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