- Companies
- Property developers
- Horsham
- Koian (Mayfair) Limited
Koian (Mayfair) Limited
- Company number
- 08556648
- Incorporated
- 5 Jun 201313 years trading
- Registered office
- Second Floor Ridgeland House, 15 Carfax, Horsham, West Sussex, RH12 1ER
- Nature of business
- Development of building projects
Koian (Mayfair) Limited is a 13-year-old private limited company registered in Horsham, company number 08556648, one of 146 property development companies in Horsham. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 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 down £170K (-12.9%) on the year before, to -£1.5M.
- Net assets rose in 0 of 6 year-on-year comparisons on record.
- Current assets of £89K against £1.6M owed within a year: 0.1 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 |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£1.5M | £82K | £89K | £1.6M | 0 |
| 31 Dec 2023 | -£1.3M | £5,755 | £2.3M | £3.6M | 0 |
| 31 Dec 2022 | -£735K | £96K | £2.8M | £1.9M | 0 |
| 31 Dec 2021 | -£652K | £64K | £2.8M | £3.5M | 0 |
| 31 Dec 2020 | -£610K | £60K | £2.8M | £3.4M | 0 |
| 31 Dec 2019 | -£383K | £61K | £3M | £1.4M | |
| 31 Dec 2018 | -£340K | £62K | £3M | £1.3M |
Where Koian (Mayfair) Limited is registered
The registered office is in Horsham (RH12), in the Horsham local authority area, South East. Show RH12 1ER on a map.
Other trade companies in RH12
- Ravenscroft Design LtdBuilders
- Greenblade Group LtdLandscapers and gardeners
- Carter Cook Construction LimitedProperty developers
- RN Property Solution LtdFinishing trades
- Bell & Son Construction LtdProperty developers
- Ihk Automotive LtdMechanics and garages
- Bubberts Cleaning Partnership LtdCleaning companies
- TD Garden Maintenance LtdLandscapers and gardeners
Also registered at this address
21 other companies use the same registered office as Koian (Mayfair) Limited.
- Blackhouse Farm Maintenance LtdFacilities management
- Bravura Contractors LimitedElectricians
- C R Chapman Building Services LtdFinishing trades
- Cook Consulting and Technical LtdBuilders
- Cragg Hall Securities LtdProperty developers
- J.A .Q Heating LimitedPlumbers and heating engineers
- J.D. Richmond & Son LimitedBuilders
- JMS Janitorial Supplies LimitedCleaning companies
- Long Mynd Developments (Surrey) LimitedBuilders
- Maidenbower Sheetmetal LimitedInstallers
- Odr Property LimitedProperty developers
- Stoneharbour Developments LtdProperty developers
- Stoneharbour Propco 1 LtdProperty developers
- Stoneharbour Propco 2 LtdProperty developers
- Stoneharbour Propco 3 LtdProperty developers
- The Billington Partnership LimitedInstallers
- Toren Properties LimitedProperty developers
- Viable Power LtdElectricians
- Village Carpets LimitedFloor and wall tilers
- Winch & Boag Developments LimitedProperty developers
- Yeates Electrical LimitedElectricians
What happens if Koian (Mayfair) Limited 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
- 08556648
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 June 2013 (13 years ago)
- Registered office
- Second Floor Ridgeland House, 15 Carfax, Horsham, West Sussex, RH12 1ER
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 5 June 2026
- Charges (mortgages)
- 1 outstanding of 4 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 Horsham
Other active property development companies registered in Horsham.
- KPM Investment Holdings Ltd2016
- Kurt Building Ltd2019
- Lansdowne Extra Care Ltd2025
- Leighton & Co Services Limited2022
- LTL Investments Ltd2025
- Lxi Developments Ltd2023
- Marlon Haus Ltd2024
- Martlet Developments Ltd2019
All property development companies in Horsham · All trades in Horsham · Property developers across the UK
Frequently asked questions
When are Koian (Mayfair) Limited's accounts due?
Koian (Mayfair) Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Koian (Mayfair) Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Koian (Mayfair) Limited still trading?
Koian (Mayfair) Limited 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 Koian (Mayfair) Limited do?
Koian (Mayfair) Limited is registered under Development of building projects (SIC 41100).
How old is Koian (Mayfair) Limited?
Koian (Mayfair) Limited was incorporated on 5 June 2013, 13 years ago.
What is the penalty if Koian (Mayfair) Limited 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 Koian (Mayfair) Limited 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.