- Companies
- Property developers
- Croydon
- Mast Interiors Limited
Mast Interiors Limited
- Company number
- 08509690
- Incorporated
- 30 Apr 201313 years trading
- Registered office
- Kings Parade, Lower Coombe Street, Croydon, Surrey, CR0 1AA
- Nature of business
- Development of building projects; Plastering; Other specialised construction activities n.e.c.
Mast Interiors Limited is a 13-year-old private limited company registered in Croydon, company number 08509690, one of 343 property development companies in Croydon. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 down £325K (-88.9%) on the year before, to -£690K.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £292K against £972K owed within a year: 0.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£690K | £3 | £292K | £972K | 0 |
| 30 Sep 2024 | -£365K | £3 | £1M | £1.4M | 8 |
| 31 Mar 2023 | £159K | £113K | £1.9M | £1.7M | 11 |
| 31 Mar 2022 | £443K | £2,983 | £1.6M | £1.2M | 11 |
| 31 Mar 2021 | £393K | £304K | £2M | £1.5M | 9 |
| 31 Mar 2020 | £536K | £306K | £2.2M | £1.6M | 12 |
| 31 Mar 2019 | £471K | £308K | £1.3M | £758K | |
| 31 Mar 2018 | £426K | £712K | £1.5M | £1M | |
| 31 Mar 2017 | £157K | ||||
| 31 Mar 2016 | £166K | £243K | £1.6M | £1.4M |
Public contracts won
Mast Interiors Limited has 2 public sector contract awards on record; the ones with their own published value total £228K, from 2018 to 2019. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Quadrant Construction Services Limited2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Quadrant Construction Services Limited | South Kilburn | £34K | 12 Apr 2019 |
| Quadrant Construction Services Limited | Wheatstone House | £194K | 4 Sep 2018 |
Where Mast Interiors Limited is registered
The registered office is in Croydon (CR0), in the Croydon local authority area, London. Show CR0 1AA on a map.
Other trade companies in CR0
- Linx Render LimitedBuilders
- Horus Properly Renovation LimitedBuilders
- Auto & Repairs London LtdMotor traders
- Diyour-Self LtdFloor and wall tilers
- Premier Kitchen Installations LimitedJoiners and carpenters
- VR1 Construct LtdBuilders
- Simply Exterior Solutions LimitedCleaning companies
- Kok Cons LtdBuilders
Also registered at this address
19 other companies use the same registered office as Mast Interiors Limited.
- 777 Demolition & Haulage Co. LimitedGroundworks and demolition
- Bonnici Brothers LimitedPainters and decorators
- Castle Hill Fire Doors LimitedInstallers
- Castle Hill Fire Protection LimitedInstallers
- E.C.S. (Air Conditioning) LimitedCivil engineering
- J Murphy & Sons of Shirley LtdFinishing trades
- J&K Partners LimitedMotor traders
- J. Browne Holdings LimitedProperty developers
- Littlebird Partnership LtdMotor traders
- Malden Renders and Finishes LimitedPlasterers
- Mayfair Housing & Commercial Investments Ltd.Property developers
- Norwood Compressors LimitedGroundworks and demolition
- Oakfirst LimitedProperty developers
- Pac Commercial Interiors LimitedPainters and decorators
- Phibbs LimitedBuilders
- Purple Construction LimitedCivil engineering
- Rural Eco LimitedProperty developers
- Traffi-Co LimitedCivil engineering
- Tristan Property (Sittingbourne) LtdProperty developers
What happens if Mast Interiors 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 08509690
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 April 2013 (13 years ago)
- Registered office
- Kings Parade, Lower Coombe Street, Croydon, Surrey, CR0 1AA
- Nature of business
- Development of building projects (SIC 41100)
Plastering (SIC 43310)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 30 April 2026
- Charges (mortgages)
- 1 outstanding of 2 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 Croydon
Other active property development companies registered in Croydon.
- Mayfair Housing & Commercial Investments Ltd.1949
- Mazzard (South West) Limited2004
- MB Hillingdon Limited2015
- MBM Bathrooms Ltd2020
- Meadway One Limited2011
- Megapro Building Services Ltd2016
- Mehan Properties Limited1961
- Melbourne Builders Limited2015
All property development companies in Croydon · All trades in Croydon · Property developers across the UK
Frequently asked questions
When are Mast Interiors Limited's accounts due?
Mast Interiors Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Mast Interiors Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Mast Interiors Limited still trading?
Mast Interiors 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 Mast Interiors Limited do?
Mast Interiors Limited is registered under Development of building projects (SIC 41100); Plastering (SIC 43310); Other specialised construction activities n.e.c. (SIC 43999).
How old is Mast Interiors Limited?
Mast Interiors Limited was incorporated on 30 April 2013, 13 years ago.
Has Mast Interiors Limited won public sector contracts?
Yes. Mast Interiors Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £228K), most recently from QUADRANT CONSTRUCTION SERVICES LIMITED.
What is the penalty if Mast Interiors 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 Mast Interiors 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.