- Company number
- 14321331
- Incorporated
- 27 Aug 20224 years trading
- Registered office
- Apex House 2ND Floor, Grand Arcade, London, N12 0EH
- Nature of business
- Construction of domestic buildings
MT Design & Build Ltd is a 4-year-old private limited company registered in London, company number 14321331, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £64K (+50.7%) on the year before, to £190K.
- Current assets of £172K against £17K owed within a year: 9.8 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £190K | £140K | £172K | £17K | 2 |
| 31 Aug 2024 | £126K | £98K | £200K | £74K | 1 |
| 31 Aug 2023 | £87K | £70K | £134K | £48K | 1 |
Where MT Design & Build Ltd is registered
The registered office is in London (N12), in the Barnet local authority area, London. Show N12 0EH on a map.
Other trade companies in N12
- Sullivan Property and Maintenance LtdFacilities management
- Mael Property Services LtdFinishing trades
- Horizon Constructors LtdProperty developers
- Alfawine Group LimitedFinishing trades
- Sam Motors Group LimitedMotor traders
- Heating on Demand LtdPlumbers and heating engineers
- Premium Electrical LtdElectricians
- Amaiya Sparks LtdCleaning companies
Shared registered office
27 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if MT Design & Build 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 14321331
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 August 2022 (4 years ago)
- Registered office
- Apex House 2ND Floor, Grand Arcade, London, N12 0EH
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 26 August 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 London
Other active building contractors registered in London.
- MT Elevators Ltd2020
- MT Global Investment Limited2025
- MT UK Construction and Management Limited2025
- MTC Builders Ltd2024
- MTG Interiors Limited2013
- MTH Build and Maintenance Ltd2022
- Mti Renovation Limited2023
- MTM Building Ltd2023
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are MT Design & Build Ltd's accounts due?
MT Design & Build Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is MT Design & Build Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is MT Design & Build Ltd still trading?
MT Design & Build Ltd is listed as active on the Companies House register (checked 13 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 MT Design & Build Ltd do?
MT Design & Build Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is MT Design & Build Ltd?
MT Design & Build Ltd was incorporated on 27 August 2022, 4 years ago.
What is the penalty if MT Design & Build 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 MT Design & Build Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.