- Companies
- Property developers
- Stanmore
- 350 KS Dev Ltd
350 KS Dev Ltd
- Company number
- 15920517
- Incorporated
- 28 Aug 20242 years trading
- Registered office
- Devonshire House, 582 Honeypot Lane, Stanmore, Middlesex, HA7 1JS
- Nature of business
- Development of building projects; Buying and selling of own real estate
350 KS Dev Ltd is a 2-year-old private limited company registered in Stanmore, company number 15920517, one of 204 property development companies in Stanmore. Companies House shows its accounts as overdue: they were due on 28 May 2026.
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 350 KS Dev Ltd is registered
The registered office is in Stanmore (HA7), in the Harrow local authority area, London. Show HA7 1JS on a map.
Other trade companies in HA7
- Vatra Developments LtdBuilders
- Air and Waves LtdPlumbers and heating engineers
- R & R Building Services LtdFinishing trades
- Berculean BBV Ltd LtdBuilders
- Velorent LtdMotor traders
- Autex LtdMechanics and garages
- TH Motorcycles LtdMotor traders
- Ady Painting and Decorating LtdInstallers
Shared registered office
113 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 350 KS Dev Ltd files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 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 May 2026 to 28 Jun 2026 | £150 |
| 1 to 3 months late | 29 Jun 2026 to 28 Aug 2026 | £375 |
| 3 to 6 months late | 29 Aug 2026 to 28 Nov 2026 | £750 |
| More than 6 months late | From 29 Nov 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2026 | £200 |
| 3 months late | 30 Nov 2026 | another £200 |
| 6 months late | 28 Feb 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15920517
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 August 2024 (2 years ago)
- Registered office
- Devonshire House, 582 Honeypot Lane, Stanmore, Middlesex, HA7 1JS
- Nature of business
- Development of building projects (SIC 41100)
Buying and selling of own real estate (SIC 68100) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 August 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 Stanmore
Other active property development companies registered in Stanmore.
- 350 KS SPV Limited2024
- 6Ten Consulting Ltd2024
- 95 Goldhawk Co-Living Limited2025
- Aanj Ltd2026
- Aaranya Holdings Ltd2026
- Ac Developments (London) Ltd2017
- Academy Electric Building Company (1931) Limited(the)1931
- Acl London Ltd2020
All property development companies in Stanmore · All trades in Stanmore · Property developers across the UK
Frequently asked questions
When are 350 KS Dev Ltd's accounts due?
350 KS Dev Ltd's accounts were due at Companies House on 28 May 2026 and the register shows them as overdue.
When is 350 KS Dev 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 27 August 2025, due by 27 August 2026, and one for the period to 31 August 2025, due by 31 August 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is 350 KS Dev Ltd still trading?
350 KS Dev 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 350 KS Dev Ltd do?
350 KS Dev Ltd is registered under Development of building projects (SIC 41100); Buying and selling of own real estate (SIC 68100).
How old is 350 KS Dev Ltd?
350 KS Dev Ltd was incorporated on 28 August 2024, 2 years ago.
What is the penalty if 350 KS Dev 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 350 KS Dev 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.