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- Harbourside Builders Limited
Company profile · Specialist contractors
Harbourside Builders Limited
Harbourside Builders Limited is a 19-year-old private limited company registered in Christchurch, company number 06125057, one of 27 specialist construction companies in Christchurch. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
Harbourside Builders Limited over the years
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 £7,535 (+33.7%) on the year before, to £30K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £139K against £108K owed within a year: 1.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £30K | £139K | £108K | 2 | |
| 31 Jul 2024 | £22K | £136K | £107K | 2 | |
| 31 Jul 2023 | £21K | £109K | £69K | 2 | |
| 31 Jul 2022 | £393 | £84K | £69K | -2 | |
| 31 Jul 2021 | £377 | £66K | £49K | -1 | |
| 31 Jul 2020 | £445 | £57K | £32K | -1 | |
| 31 Jul 2019 | £1,692 | £35K | £50K | -1 | |
| 31 Jul 2018 | £162 | £17K | £22K | ||
| 31 Jul 2017 | £3,627 | £25K | £32K | ||
| 31 Jul 2016 | -£957 | £12K | £29K |
Where Harbourside Builders Limited is registered
The registered office is in Christchurch (BH23), in the Bournemouth, Christchurch and Poole local authority area, South West. Show BH23 3JR on a map.
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What happens if Harbourside Builders 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 06125057
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 February 2007 (19 years ago)
- Registered office
- 2 Caroline Avenue, Christchurch, Dorset, BH23 3JR
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 4 October 2025
- Previous names
- Watermain Plumbing & Heating Limited (until 10 Dec 2012)
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Christchurch
Other active specialist construction companies registered in Christchurch.
- Instant Refrigeration Services Limited2013
- JDC Property Solutions Ltd2024
- LB Elevators Limited2005
- Love Your Home Installations Ltd2024
- Maap Consultants Ltd1994
- Orphir Limited2002
- Parkcrest Construction Limited1998
- Point Builders Limited2002
All specialist construction companies in Christchurch · All trades in Christchurch · Specialist contractors across the UK
Frequently asked questions
When are Harbourside Builders Limited's accounts due?
Harbourside Builders Limited's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Harbourside Builders Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Harbourside Builders Limited still trading?
Harbourside Builders 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 Harbourside Builders Limited do?
Harbourside Builders Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Harbourside Builders Limited?
Harbourside Builders Limited was incorporated on 23 February 2007, 19 years ago.
What is the penalty if Harbourside Builders 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 Harbourside Builders 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.