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Harbour Construction Dorset Limited

ActiveTotal exemption (full) accountsInstallersWeymouth
Company number
04755639
Incorporated
7 May 200323 years trading
Registered office
Leanne House, 6 Avon Close, Weymouth, Dorset, DT4 9UX
Nature of business
Other construction installation
Accounts due in
169 days
31 Mar 2027
Net assets
£165K▼
-0.0% on the year before
Employees
1
Average during the year
Public contracts
1
Latest 2015
From the Companies House register, 1 Oct 2026

Harbour Construction Dorset Limited is a 23-year-old private limited company registered in Weymouth, company number 04755639, one of 24 installation companies (insulation, lifts, shutters and similar) in Weymouth. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.

Key dates

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

Accounts due
31 Mar 2027
in 169 days
For the period to 30 Jun 2026
CT600 due
30 Jun 2027
in 260 days
Period 1 Jul 2025 to 30 Jun 2026
Corporation tax payment
1 Apr 2027
in 170 days
9 months and 1 day after the period end
Confirmation statement
21 May 2027
in 220 days
Last made up to 7 May 2026

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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 down £1,091 (-0.7%) on the year before, to £165K.
  • Net assets rose in 3 of 9 year-on-year comparisons on record.
  • 1 employee on average during the year.
  • Balance sheets on record for 10 years, 2017 to 2026.

Net assets by year

Net assets at each year end, 2017 to 2026£0£100K£200K30 June 2017: net assets £221K£221K201730 June 2018: net assets £208K£208K201830 June 2019: net assets £169K£169K201930 June 2020: net assets £164K£164K202030 June 2021: net assets £166K£166K202130 June 2022: net assets £168K£168K202230 June 2023: net assets £166K£166K202330 June 2024: net assets £166K£166K202430 June 2025: net assets £166K£166K202530 June 2026: net assets £165K£165K2026
Net assets at each year end, 2017 to 2026£0£100K£200K30 June 2017: net assets £221K£221K'1730 June 2018: net assets £208K£208K'1830 June 2019: net assets £169K£169K'1930 June 2020: net assets £164K£164K'2030 June 2021: net assets £166K£166K'2130 June 2022: net assets £168K£168K'2230 June 2023: net assets £166K£166K'2330 June 2024: net assets £166K£166K'2430 June 2025: net assets £166K£166K'2530 June 2026: net assets £165K£165K'26
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Jun 2026£165K£4,1221
30 Jun 2025£166K£4,0701
30 Jun 2024£166K£4,3961
30 Jun 2023£166K£3,8611
30 Jun 2022£168K£2,3331
30 Jun 2021£166K£0£4,2341
30 Jun 2020£164K£205£269£5,7751
30 Jun 2019£169K£1,383£1,383£2,7902
30 Jun 2018£208K£5,343£5,887£2,3012
30 Jun 2017£221K£7,078£7,971£2,9682

Public contracts won

Harbour Construction Dorset Limited has one public sector contract award on record (2015). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.

BuyerContractValueAwarded
Dorset HealthCare University NHS Foundation TrustGB-Weymouth: Weymouth OPD Clinic Room Upgrade22 Dec 2015

Where Harbour Construction Dorset Limited is registered

Harbour Construction Dorset Limited's registered office on a map of the UK

The registered office is in Weymouth (DT4), in the Dorset local authority area, South West. Show DT4 9UX on a map.

Other trade companies in DT4

Also registered at this address

21 other companies use the same registered office as Harbour Construction Dorset Limited.

What happens if Harbour Construction Dorset 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 March 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Apr 2027 to 30 Apr 2027£150
1 to 3 months late1 May 2027 to 30 Jun 2027£375
3 to 6 months late1 Jul 2027 to 30 Sep 2027£750
More than 6 months lateFrom 1 Oct 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jul 2027£200
3 months late30 Sep 2027another £200
6 months late30 Dec 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Jun 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
04755639
Status
Active
Company type
Private limited company
Incorporated
7 May 2003 (23 years ago)
Registered office
Leanne House, 6 Avon Close, Weymouth, Dorset, DT4 9UX
Nature of business
Other construction installation (SIC 43290)
Year end
30 June (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 June 2025
Last confirmation statement
7 May 2026
Charges (mortgages)
0 outstanding of 3 registered

Filing notes for installation companies (insulation, lifts, shutters and similar)

Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.

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Other active installation companies (insulation, lifts, shutters and similar) registered in Weymouth.

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Frequently asked questions

When are Harbour Construction Dorset Limited's accounts due?

Harbour Construction Dorset Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.

When is Harbour Construction Dorset Limited's CT600 due?

The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.

Is Harbour Construction Dorset Limited still trading?

Harbour Construction Dorset 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 Harbour Construction Dorset Limited do?

Harbour Construction Dorset Limited is registered under Other construction installation (SIC 43290).

How old is Harbour Construction Dorset Limited?

Harbour Construction Dorset Limited was incorporated on 7 May 2003, 23 years ago.

Has Harbour Construction Dorset Limited won public sector contracts?

Yes. Harbour Construction Dorset Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Dorset HealthCare University NHS Foundation Trust.

What is the penalty if Harbour Construction Dorset 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 Harbour Construction Dorset 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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