- Companies
- Finishing trades
- London
- Mayfair Interiors Ltd
Mayfair Interiors Ltd
- Company number
- 09960762
- Incorporated
- 20 Jan 201610 years trading
- Registered office
- Level 1 Devonshire House, One Mayfair Place, London, W1J 8AJ
- Nature of business
- Other building completion and finishing
Mayfair Interiors Ltd is a 10-year-old private limited company registered in London, company number 09960762, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £12K (+601.3%) on the year before, to £15K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £57K against £42K owed within a year: 1.3 times cover.
- 4 employees on average, down from 6 the year before.
- Balance sheets on record for 7 years, 2017 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2023 | £15K | £32K | £57K | £42K | 4 |
| 31 Jan 2022 | £2,076 | £9,801 | 6 | ||
| 31 Jan 2021 | £32K | £219 | £32K | 2 | |
| 31 Jan 2020 | £1 | ||||
| 31 Jan 2019 | £1 | ||||
| 31 Jan 2018 | £1 | ||||
| 31 Jan 2017 | £1 |
Where Mayfair Interiors Ltd is registered
The registered office is in London (W1J), in the Westminster local authority area, London. Show W1J 8AJ on a map.
Other trade companies in W1J
- Eq Care Bradley Stoke LimitedProperty developers
- Mayfair Masonry LtdBuilders
- Eq Care Devizes LimitedProperty developers
- Eq Care Waterlooville LimitedProperty developers
- Domna Renewables LimitedInstallers
- Apex Build London LimitedBuilders
- Conquest Build UK LtdProperty developers
- UK Vehicle Imports LimitedMotor traders
Also registered at this address
3 other companies use the same registered office as Mayfair Interiors Ltd.
- Edmt Developments LtdFinishing trades
- Kirata LtdCleaning companies
- London Watertight Solutions LtdBuilders
What happens if Mayfair Interiors 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 09960762
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 January 2016 (10 years ago)
- Registered office
- Level 1 Devonshire House, One Mayfair Place, London, W1J 8AJ
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 17 July 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 London
Other active building finishing companies registered in London.
- Mayz Developments Ltd2026
- Mazj Services Limited2026
- MB Alkos Limited2021
- MB Building & Management Limited2016
- MB Refurb Projects Ltd2026
- Mba Projects Limited2011
- MBCB Ltd2025
- MBL Plus Ltd2026
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Mayfair Interiors Ltd's accounts due?
Mayfair Interiors Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Mayfair Interiors Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Mayfair Interiors Ltd still trading?
Mayfair Interiors 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 Mayfair Interiors Ltd do?
Mayfair Interiors Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Mayfair Interiors Ltd?
Mayfair Interiors Ltd was incorporated on 20 January 2016, 10 years ago.
What is the penalty if Mayfair Interiors 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 Mayfair Interiors 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.