Buildn Ltd
- Company number
- 15355444
- Incorporated
- 16 Dec 20232 years trading
- Registered office
- Wellington House, 273-275 High Street, London Colney, Hertfordshire, AL2 1HA
- Nature of business
- Development of building projects
Buildn Ltd is a 2-year-old private limited company registered in London Colney, company number 15355444, one of 26 property development companies in London Colney. Companies House shows its accounts as overdue: they were due on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2024
From the balance sheet at 31 December 2024, as filed at Companies House.
Where Buildn Ltd is registered
The registered office is in London Colney (AL2), in the St Albans local authority area, East of England. Show AL2 1HA on a map.
Other trade companies in AL2
- Keris Ventures Limited LimitedFinishing trades
- Kelly Brickwork LimitedBuilders
- Aurora Electrical LtdElectricians
- Pillars Motors LimitedMotor traders
- Pride & Joy LtdFinishing trades
- Rowantree Developments Group LimitedProperty developers
- Herts Groundworks and Civils LtdGroundworks and demolition
- Meristem Developments LtdProperty developers
Shared registered office
58 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Buildn Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 15355444
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 December 2023 (2 years ago)
- Registered office
- Wellington House, 273-275 High Street, London Colney, Hertfordshire, AL2 1HA
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 15 December 2025
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 London Colney
Other active property development companies registered in London Colney.
- Cowen Investments Limited2013
- E.P.H Developments Ltd2015
- Europe (HS) Limited2003
- Everwright Dev Ltd2026
- Fairway Property Investments Limited1986
- Fidaro Developments Limited2025
- Freepart Limited1997
- G & D Plant Hire (Watford) Limited2015
All property development companies in London Colney · All trades in London Colney · Property developers across the UK
Frequently asked questions
When are Buildn Ltd's accounts due?
Buildn Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Buildn Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Buildn Ltd still trading?
Buildn 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 Buildn Ltd do?
Buildn Ltd is registered under Development of building projects (SIC 41100).
How old is Buildn Ltd?
Buildn Ltd was incorporated on 16 December 2023, 2 years ago.
What is the penalty if Buildn 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 Buildn 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.