- Companies
- Property developers
- Stanmore
- Mount One Ltd
Mount One Ltd
- Company number
- 13637294
- Incorporated
- 22 Sep 20215 years trading
- Registered office
- 5A Parr Road, Stanmore, HA7 1NP
- Nature of business
- Development of building projects; Buying and selling of own real estate; Other letting and operating of own or leased real estate; Management of real estate on a fee or contract basis
Mount One Ltd is a 5-year-old private limited company registered in Stanmore, company number 13637294, one of 204 property development companies in Stanmore. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £3,881 (+14%) on the year before, to -£24K.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £395 against £1,601 owed within a year: 0.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£24K | £395 | £1,601 | 0 | |
| 31 Mar 2024 | -£28K | £15 | £15 | £800 | 0 |
| 31 Mar 2023 | -£31K | £578 | £579 | £91K | 0 |
| 30 Sep 2022 | £1 | £1 | 0 |
Where Mount One Ltd is registered
The registered office is in Stanmore (HA7), in the Harrow local authority area, London. Show HA7 1NP on a map.
Other trade companies in HA7
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- Air and Waves LtdPlumbers and heating engineers
- R & R Building Services LtdFinishing trades
- Berculean BBV Ltd LtdBuilders
- Velorent LtdMotor traders
- Autex LtdMechanics and garages
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Also registered at this address
14 other companies use the same registered office as Mount One Ltd.
- A&T Rendering LimitedPlasterers
- Arbi Properties LimitedProperty developers
- Cut and Hedges Gardening Solutions LimitedLandscapers and gardeners
- Embassy Cars LtdMechanics and garages
- Galaiya Properties LimitedProperty developers
- Groveland Property LimitedProperty developers
- Jeet Building Services LimitedProperty developers
- Modern Engineers LimitedMechanics and garages
- PDG Investments LtdSpecialist contractors
- Rana LimitedSpecialist contractors
- Strictly Trade LimitedMotor traders
- Topps Maintenance Services LimitedBuilders
- Universal Investments & Developments LimitedProperty developers
- Willow Construction LimitedBuilders
What happens if Mount One 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13637294
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 September 2021 (5 years ago)
- Registered office
- 5A Parr Road, Stanmore, HA7 1NP
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209)
Management of real estate on a fee or contract basis (SIC 68320) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 21 September 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Stanmore
Other active property development companies registered in Stanmore.
- Muscat Developments Ltd2018
- Musgrave House Hujjat Limited2025
- Nacropolis (BH) Ltd2022
- Nacropolis (Brick Kiln) Ltd2022
- Nacropolis (Langley) Ltd2016
- Nacropolis Developments Limited2006
- Nirvana Ventures Group Limited2024
- O R Developments Ltd2024
All property development companies in Stanmore · All trades in Stanmore · Property developers across the UK
Frequently asked questions
When are Mount One Ltd's accounts due?
Mount One Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Mount One Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Mount One Ltd still trading?
Mount One Ltd is listed as active on the Companies House register (checked 12 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 Mount One Ltd do?
Mount One Ltd is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209); Management of real estate on a fee or contract basis (SIC 68320).
How old is Mount One Ltd?
Mount One Ltd was incorporated on 22 September 2021, 5 years ago.
What is the penalty if Mount One 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 Mount One Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.