- Companies
- Property developers
- Cambridge
- UK 1ST Ltd
UK 1ST Ltd
- Company number
- 16306205
- Incorporated
- 11 Mar 20251 year trading
- Registered office
- 27 Mortlock Avenue, Cambridge, CB4 1TD
- Nature of business
- Development of building projects; Construction of commercial buildings
UK 1ST Ltd is a 1-year-old private limited company registered in Cambridge, company number 16306205, one of 335 property development companies in Cambridge. Its next accounts are due at Companies House on 11 December 2026, and its first CT600 is due at HMRC on 10 March 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where UK 1ST Ltd is registered
The registered office is in Cambridge (CB4), in the Cambridge local authority area, East of England. Show CB4 1TD on a map.
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What happens if UK 1ST 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 11 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Dec 2026 to 11 Jan 2027 | £150 |
| 1 to 3 months late | 12 Jan 2027 to 11 Mar 2027 | £375 |
| 3 to 6 months late | 12 Mar 2027 to 11 Jun 2027 | £750 |
| More than 6 months late | From 12 Jun 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
- 16306205
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2025 (1 year ago)
- Registered office
- 27 Mortlock Avenue, Cambridge, CB4 1TD
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 March 2026
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 Cambridge
Other active property development companies registered in Cambridge.
- Urban Agenda Limited2003
- Urban Summit Construction Limited2013
- Urban Summit Development Limited2013
- Urban Summit Group Limited2013
- V G N Construction Limited2019
- Vector Pro Ltd2018
- Ventress Property Developments Limited1958
- Welwyn JV1 Ltd2019
All property development companies in Cambridge · All trades in Cambridge · Property developers across the UK
Frequently asked questions
When are UK 1ST Ltd's accounts due?
UK 1ST Ltd's next accounts are due at Companies House by 11 December 2026 (in 60 days), covering the period to 31 March 2026.
When is UK 1ST Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 10 March 2026, due by 10 March 2027, 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 UK 1ST Ltd still trading?
UK 1ST 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 UK 1ST Ltd do?
UK 1ST Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201).
How old is UK 1ST Ltd?
UK 1ST Ltd was incorporated on 11 March 2025, 1 year ago.
What is the penalty if UK 1ST 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 UK 1ST 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.