- Company number
- 11053193
- Incorporated
- 8 Nov 20178 years trading
- Registered office
- Rear of 17 Plantagenet Road, Barnet, Hertfordshire, EN5 5JG
- Nature of business
- Construction of domestic buildings; Electrical installation; Plumbing, heat and air-conditioning installation
Cubit Design & Building Ltd is a 8-year-old private limited company registered in Barnet, company number 11053193, one of 201 building contractors in Barnet. Its next accounts are due at Companies House on 30 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
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 £6,597 (+31.6%) on the year before, to -£14K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £33K against £60K owed within a year: 0.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2024 | -£14K | £33K | £60K | 0 | |
| 30 Nov 2023 | -£21K | £73K | £98K | 2 | |
| 30 Nov 2022 | -£36K | £20K | £61K | 2 | |
| 30 Nov 2021 | £504 | £50K | £57K | 2 | |
| 30 Nov 2020 | -£29K | £13K | £52K | 2 | |
| 30 Nov 2019 | £7,005 | £18K | £11K | 2 | |
| 30 Nov 2018 | -£25K | £7,524 | £33K | 2 |
Public contracts won
Cubit Design & Building Ltd has one public sector contract award on record; the ones with their own published value total £157K (2023). Source: Contracts Finder and Find a Tender award notices.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| London Borough of Bromley | Heating, Gas Appliances & Installations - Gas central heating installation (20% VAT) | £157K | 21 Mar 2023 |
Where Cubit Design & Building Ltd is registered
The registered office is in Barnet (EN5), in the Barnet local authority area, London. Show EN5 5JG on a map.
Other trade companies in EN5
- Paysa Gas LtdPlumbers and heating engineers
- Greatway Business LtdInstallers
- Je Mobile Tyres LtdMechanics and garages
- Barnet Air LtdPlumbers and heating engineers
- Hutch Electrical LtdElectricians
- Nexflow Mechanical LtdSpecialist contractors
- A J Plant LtdMotor traders
- Plumbing365 LtdPlumbers and heating engineers
Also registered at this address
18 other companies use the same registered office as Cubit Design & Building Ltd.
- 786 Motor Traders LimitedMotor traders
- A and U Capital LtdMotor traders
- A&B Brickwork LtdSpecialist contractors
- Adrian and Sons Group LimitedBuilders
- Automotive Gurus LimitedMotor traders
- Az Home Constructions LtdBuilders
- Farlan Automotive LimitedMotor traders
- Gurukrupa Builders & Decorators LtdBuilders
- KV Design and Build LimitedBuilders
- MLS Auto Dealership LimitedMotor traders
- Penthou53 LtdPlumbers and heating engineers
- Progressive Plastering LimitedBuilders
- Rems Holding LtdBuilders
- SD6 Performance LtdMechanics and garages
- Sweet News LimitedProperty developers
- Universe Project Management LimitedBuilders
- Winchmore Hill Services LtdMechanics and garages
- Wrenche'd Customs LtdMechanics and garages
What happens if Cubit Design & Building 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 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 11053193
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 November 2017 (8 years ago)
- Registered office
- Rear of 17 Plantagenet Road, Barnet, Hertfordshire, EN5 5JG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 20 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Barnet
Other active building contractors registered in Barnet.
- D&P Design Limited2017
- D.U&M Construct Ltd2024
- Dae99 Services Ltd2020
- Damien D Construction Ltd2025
- Danesbury Park Estates Ltd2022
- Daval Construction Limited2001
- Daydream Homes (Hampshire) Limited2022
- DBMP Ltd2013
All building contractors in Barnet · All trades in Barnet · Builders across the UK
Frequently asked questions
When are Cubit Design & Building Ltd's accounts due?
Cubit Design & Building Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Cubit Design & Building Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Cubit Design & Building Ltd still trading?
Cubit Design & Building 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 Cubit Design & Building Ltd do?
Cubit Design & Building Ltd is registered under Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Cubit Design & Building Ltd?
Cubit Design & Building Ltd was incorporated on 8 November 2017, 8 years ago.
Has Cubit Design & Building Ltd won public sector contracts?
Yes. Cubit Design & Building Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £157K), most recently from London Borough of Bromley.
What is the penalty if Cubit Design & Building 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 Cubit Design & Building 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.