- Companies
- Finishing trades
- Portsmouth
- Northport Construction Services Limited
Northport Construction Services Limited
- Company number
- 05596097
- Incorporated
- 18 Oct 200520 years trading
- Registered office
- 12 Acorn Business Park, Northarbour Road, Portsmouth, Hampshire, PO6 3TH
- Nature of business
- Other building completion and finishing
Northport Construction Services Limited is a 20-year-old private limited company registered in Portsmouth, company number 05596097, one of 137 building finishing companies in Portsmouth. 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.
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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 £96K (-97.5%) on the year before, to £2,489.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £861K against £890K owed within a year: 1.0 times cover.
- 8 employees on average, up from 7 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £2,489 | £199K | £861K | £890K | 8 |
| 30 Jun 2024 | £98K | £175K | £620K | £557K | 7 |
| 30 Jun 2023 | £38K | £242K | £553K | £556K | 6 |
| 30 Jun 2022 | £296K | £486K | £692K | £431K | 6 |
| 30 Jun 2021 | £519K | £430K | £1.4M | £885K | 6 |
| 30 Jun 2020 | £400K | £942K | £1.4M | £1M | 7 |
| 30 Jun 2019 | £434K | £766K | £1.3M | £904K | 8 |
| 30 Jun 2018 | £454K | £588K | £1.1M | £744K | 7 |
| 30 Jun 2017 | £739K | £757K | £974K | £303K | 6 |
| 30 Jun 2016 | £568K | £464K | £747K | £218K |
Public contracts won
Northport Construction Services Limited has 12 public sector contract awards on record; the ones with their own published value total £97K, from 2024 to 2026. Source: Contracts Finder and Find a Tender award notices. For 2 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. 11 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Hampshire County Council11 awards
- Hampshire County Council1 award
Showing the 10 most recent of 12.
Where Northport Construction Services Limited is registered
The registered office is in Portsmouth (PO6), in the Portsmouth local authority area, South East. Show PO6 3TH on a map.
Other trade companies in PO6
- Bellagio Partners LtdBuilders
- Cpenw LtdMachinery repair and installation
- Marla Brickwork & Construction LtdProperty developers
- Miracles in Metal LtdMechanics and garages
- FH Fire & Electrical LtdElectricians
- Thomcore LimitedSpecialist contractors
- JMS Southern LtdElectricians
- The Motum Group LtdSpecialist contractors
Also registered at this address
19 other companies use the same registered office as Northport Construction Services Limited.
- Alleron Developments LimitedProperty developers
- Automatic Door Installations LimitedInstallers
- Bound by Resin LimitedFinishing trades
- Crossway Plumbing & Heating LimitedPlumbers and heating engineers
- D M Building & Restoration LtdSpecialist contractors
- DMBR Maintenance LtdFinishing trades
- Ej's Motor Services LimitedMechanics and garages
- Environmental Projects Southern LimitedPlumbers and heating engineers
- Fine Finish Construction LimitedPlasterers
- Forman Stacy Properties LimitedProperty developers
- Ignite Mechanical Services LtdPlumbers and heating engineers
- Javelin Controls LimitedElectricians
- MG&T (Hampshire) LimitedMotor traders
- R & S Property Developments LimitedProperty developers
- R&S Roofing & Cladding (South) LimitedRoofers
- Somrow Construction LimitedBuilders
- T S E Carpentry & Construction LimitedJoiners and carpenters
- V-Race LimitedPlumbers and heating engineers
- Vision Signs & Displays LimitedBuilders
What happens if Northport Construction Services 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 05596097
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 October 2005 (20 years ago)
- Registered office
- 12 Acorn Business Park, Northarbour Road, Portsmouth, Hampshire, PO6 3TH
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 29 June 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Portsmouth
Other active building finishing companies registered in Portsmouth.
- Norton Construction Southern Limited2007
- Office Builders Limited2021
- P Smith Tiling Services Limited2015
- Paruk Building Services Ltd2023
- Paul`S Property Services Limited2009
- Perma-Fix Limited2012
- Pinnacle Building Limited2020
- Portsmouth Building Repairs Ltd2019
All building finishing companies in Portsmouth · All trades in Portsmouth · Finishing trades across the UK
Frequently asked questions
When are Northport Construction Services Limited's accounts due?
Northport Construction Services 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 Northport Construction Services 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 Northport Construction Services Limited still trading?
Northport Construction Services 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 Northport Construction Services Limited do?
Northport Construction Services Limited is registered under Other building completion and finishing (SIC 43390).
How old is Northport Construction Services Limited?
Northport Construction Services Limited was incorporated on 18 October 2005, 20 years ago.
Has Northport Construction Services Limited won public sector contracts?
Yes. Northport Construction Services Limited has 12 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £97K), most recently from Hampshire County Council.
What is the penalty if Northport Construction Services 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 Northport Construction Services 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.