- Companies
- Specialist contractors
- Plymouth
- Buildx (SW) Ltd
Buildx (SW) Ltd
- Company number
- 12970752
- Incorporated
- 23 Oct 20205 years trading
- Registered office
- Unit 93 Christian Mill Business Park, Tamerton Foliot Road, Plymouth, Devon, PL6 5DS
- Nature of business
- Other specialised construction activities n.e.c.
Buildx (SW) Ltd is a 5-year-old private limited company registered in Plymouth, company number 12970752, one of 113 specialist construction companies in Plymouth. 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.
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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 £43K (+5.2%) on the year before, to £872K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £2M against £1.1M owed within a year: 1.8 times cover.
- 11 employees on average, down from 12 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £872K | £1M | £2M | £1.1M | 11 |
| 31 Oct 2024 | £829K | £941K | £1.8M | £951K | 12 |
| 31 Oct 2023 | £467K | £280K | £1.1M | £650K | 9 |
| 31 Oct 2022 | £91K | £80K | £374K | £171K | 11 |
| 31 Oct 2021 | £62K | £75K | £241K | £64K | 4 |
Public contracts won
Buildx (SW) Ltd has 6 public sector contract awards on record; the ones with their own published value total £14M, from 2021 to 2025. 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. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Plymouth Community Homes3 awards
- Devon County Council1 award
- LiveWest Homes Limited1 award
- Corserv Limited1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Plymouth Community Homes | Pembroke Street Refurbishment Project | £5.4M | 21 Aug 2025 |
| Plymouth Community Homes | Pembroke Street Refurbishment Project | £6.4M | 21 Aug 2025 |
| Plymouth Community Homes | 10-15 How Street, 10-15 Looe Street and 115-131 Vauxhall Street | £1.5M | 7 Aug 2025 |
| Devon County Council | CP2549-24: Devon and Somerset Standing List of Approved Contractors (SLoAC) 2025 | Ceiling, not shown | 4 Apr 2025 |
| LiveWest Homes Limited | Render Repairs and Associated Works Address: Bray Rise and Hope Corner, Redruth, TR16 6AW | £166K | 14 Apr 2023 |
| Corserv Limited | 6 Boscarne Crescent Major Refurbishment-Adaption | £39K | 9 Nov 2021 |
Where Buildx (SW) Ltd is registered
The registered office is in Plymouth (PL6), in the Plymouth local authority area, South West. Show PL6 5DS on a map.
Other trade companies in PL6
- Transit Garage SW LimitedMechanics and garages
- Drilling Consultants LimitedCivil engineering
- A-Frame Scaffolding LimitedScaffolders
- SW Plantroom Partners LtdPlumbers and heating engineers
- Trueline (SW) LtdJoiners and carpenters
- Prime Plumbing & Heating SW LtdPlumbers and heating engineers
- New Cut Carpentry LimitedJoiners and carpenters
- Sos 360 LtdBuilders
What happens if Buildx (SW) Ltd 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 12970752
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 October 2020 (5 years ago)
- Registered office
- Unit 93 Christian Mill Business Park, Tamerton Foliot Road, Plymouth, Devon, PL6 5DS
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 22 October 2025
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 Plymouth
Other active specialist construction companies registered in Plymouth.
- C P Naval Ltd2026
- CJM Install Ltd2018
- Compass Marine Decking Ltd2007
- Complete Works Plymouth Ltd2016
- Connections Carpentry & Construction Ltd2021
- Core Compliance Ltd2024
- Cranheath Transport Limited1986
- D W Brickworks Limited2015
All specialist construction companies in Plymouth · All trades in Plymouth · Specialist contractors across the UK
Frequently asked questions
When are Buildx (SW) Ltd's accounts due?
Buildx (SW) Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Buildx (SW) Ltd'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 Buildx (SW) Ltd still trading?
Buildx (SW) Ltd 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 Buildx (SW) Ltd do?
Buildx (SW) Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Buildx (SW) Ltd?
Buildx (SW) Ltd was incorporated on 23 October 2020, 5 years ago.
Has Buildx (SW) Ltd won public sector contracts?
Yes. Buildx (SW) Ltd has 6 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £14M), most recently from Plymouth Community Homes.
What is the penalty if Buildx (SW) Ltd 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 Buildx (SW) Ltd 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.