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  1. Companies
  2. Property developers
  3. London
  4. Island Harbour Development Ltd

Island Harbour Development Ltd

ActiveNo accounts filed yet accountsProperty developersLondon
Company number
17066424
Incorporated
3 Mar 2026
Registered office
64 Nightingale Road, London, NW10 4SA
Nature of business
Development of building projects
Accounts due in
416 days
3 Dec 2027
From the Companies House register, 1 Oct 2026

Island Harbour Development Ltd is a newly incorporated private limited company registered in London, company number 17066424, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 3 December 2027, and its first CT600 is due at HMRC on 2 March 2028.

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.

Accounts due
3 Dec 2027
in 416 days
For the period to 31 Mar 2027
CT600 due (first of two)
2 Mar 2028
in 506 days
Period 3 Mar 2026 to 2 Mar 2027
CT600 due (second of two)
31 Mar 2028
in 535 days
Period 3 Mar 2027 to 31 Mar 2027
Corporation tax payment
1 Jan 2028
in 445 days
9 months and 1 day after the period end
Confirmation statement
16 Mar 2027
in 154 days

Is this your company?

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Where Island Harbour Development Ltd is registered

Island Harbour Development Ltd's registered office on a map of the UK

The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 4SA on a map.

Other trade companies in NW10

Also registered at this address

9 other companies use the same registered office as Island Harbour Development Ltd.

What happens if Island Harbour Development 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 3 December 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late4 Dec 2027 to 3 Jan 2028£150
1 to 3 months late4 Jan 2028 to 3 Mar 2028£375
3 to 6 months late4 Mar 2028 to 3 Jun 2028£750
More than 6 months lateFrom 4 Jun 2028£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Apr 2028£200
3 months late30 Jun 2028another £200
6 months late30 Sep 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2029another 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
17066424
Status
Active
Company type
Private limited company
Incorporated
3 March 2026
Registered office
64 Nightingale Road, London, NW10 4SA
Nature of business
Development of building projects (SIC 41100)
Year end
31 March (accounting reference date)
Accounts type
No accounts filed yet

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

Other active property development companies registered in London.

All property development companies in London · All trades in London · Property developers across the UK

Frequently asked questions

When are Island Harbour Development Ltd's accounts due?

Island Harbour Development Ltd's next accounts are due at Companies House by 3 December 2027 (in 416 days), covering the period to 31 March 2027.

When is Island Harbour Development 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 2 March 2027, due by 2 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is Island Harbour Development Ltd still trading?

Island Harbour Development 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 Island Harbour Development Ltd do?

Island Harbour Development Ltd is registered under Development of building projects (SIC 41100).

How old is Island Harbour Development Ltd?

Island Harbour Development Ltd was incorporated on 3 March 2026, less than a year ago.

What is the penalty if Island Harbour 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 Island Harbour Development Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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