- Company number
- 12294463
- Incorporated
- 1 Nov 20196 years trading
- Registered office
- 28 Grand Union House, The Ridgeway, Iver, SL0 9BU
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other specialised construction activities n.e.c.; Activities of construction holding companies
Trademark Development Ltd is a 6-year-old private limited company registered in Iver, company number 12294463, one of 40 building contractors in Iver. Companies House shows its accounts as overdue: they were due on 28 August 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 up £57K (+71.8%) on the year before, to £136K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £123K against £251K owed within a year: 0.5 times cover.
- 28 employees on average, down from 35 the year before.
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Nov 2024 | £136K | £123K | £251K | 28 | |
| 28 Nov 2023 | £79K | £149K | £216K | 35 | |
| 28 Nov 2022 | £20K | £97K | £97K | 38 | |
| 28 Nov 2021 | £89K | £147K | £25K | 61 | |
| 29 Nov 2020 | £125K | £290K | £404K | £248K | 41 |
Where Trademark Development Ltd is registered
The registered office is in Iver (SL0), in the Buckinghamshire local authority area, South East. Show SL0 9BU on a map.
Other trade companies in SL0
- G Turna Construction LimitedBuilders
- PSG Engineering Services LtdCivil engineering
- Drive on Demand LtdMotor traders
- Slick Autos LimitedMechanics and garages
- Aa Salvage Services LtdMotor traders
- Pana Construction LtdProperty developers
- Waste Rescue LimitedMechanics and garages
- Raja Builder Property Services LtdProperty developers
Also registered at this address
3 other companies use the same registered office as Trademark Development Ltd.
- BM Constructors LtdBuilders
- Built by Gale LtdBuilders
- Horizon Crafters LtdBuilders
What happens if Trademark Development Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Aug 2026 to 28 Sep 2026 | £150 |
| 1 to 3 months late | 29 Sep 2026 to 28 Nov 2026 | £375 |
| 3 to 6 months late | 29 Nov 2026 to 28 Feb 2027 | £750 |
| More than 6 months late | From 1 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Nov 2026 | £200 |
| 3 months late | 28 Feb 2027 | another £200 |
| 6 months late | 28 May 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Nov 2027 | 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
- 12294463
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 November 2019 (6 years ago)
- Registered office
- 28 Grand Union House, The Ridgeway, Iver, SL0 9BU
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other specialised construction activities n.e.c. (SIC 43999)
Activities of construction holding companies (SIC 64203) - Year end
- 28 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 November 2024
- Last confirmation statement
- 29 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 Iver
Other active building contractors registered in Iver.
- Vasy Electrical Ltd2025
- Wdia Construction Ltd2024
- West London Build Ltd2022
- West Space Construction (London) Ltd2017
- 20 Builders Limited2025
- 5Korners Ltd2025
- Avenhurst Limited2025
- BK Specialists Ltd2020
All building contractors in Iver · All trades in Iver · Builders across the UK
Frequently asked questions
When are Trademark Development Ltd's accounts due?
Trademark Development Ltd's accounts were due at Companies House on 28 August 2026 and the register shows them as overdue.
When is Trademark Development Ltd's CT600 due?
The CT600 for the period to 28 November 2025 is due at HMRC by 28 November 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 29 August 2026.
Is Trademark Development Ltd still trading?
Trademark Development 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 Trademark Development Ltd do?
Trademark Development Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other specialised construction activities n.e.c. (SIC 43999); Activities of construction holding companies (SIC 64203).
How old is Trademark Development Ltd?
Trademark Development Ltd was incorporated on 1 November 2019, 6 years ago.
What is the penalty if Trademark Development 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 Trademark Development 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.