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  1. Companies
  2. Property developers
  3. Harrow
  4. Oa Developments London Limited

Oa Developments London Limited

ActiveNo accounts filed yet accountsProperty developersHarrow
Company number
17414718
Incorporated
21 Aug 2026
Registered office
10 College Road, Harrow, HA1 1BE
Nature of business
Development of building projects
Accounts due in
587 days
21 May 2028
From the Companies House register, 1 Oct 2026

Oa Developments London Limited is a newly incorporated private limited company registered in Harrow, company number 17414718, one of 679 property development companies in Harrow. Its next accounts are due at Companies House on 21 May 2028, and its first CT600 is due at HMRC on 20 August 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
21 May 2028
in 587 days
For the period to 31 Aug 2027
CT600 due (first of two)
20 Aug 2028
in 678 days
Period 21 Aug 2026 to 20 Aug 2027
CT600 due (second of two)
31 Aug 2028
in 689 days
Period 21 Aug 2027 to 31 Aug 2027
Corporation tax payment
1 Jun 2028
in 598 days
9 months and 1 day after the period end
Confirmation statement
3 Sep 2027
in 326 days

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Where Oa Developments London Limited is registered

Oa Developments London Limited's registered office on a map of the UK

The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 1BE on a map.

Other trade companies in HA1

Also registered at this address

14 other companies use the same registered office as Oa Developments London Limited.

What happens if Oa Developments London Limited 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 21 May 2028.

Companies HouseAccounts deliveredPenalty
Up to 1 month late22 May 2028 to 21 Jun 2028£150
1 to 3 months late22 Jun 2028 to 21 Aug 2028£375
3 to 6 months late22 Aug 2028 to 21 Nov 2028£750
More than 6 months lateFrom 22 Nov 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Sep 2028£200
3 months late30 Nov 2028another £200
6 months late28 Feb 2029HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Aug 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
17414718
Status
Active
Company type
Private limited company
Incorporated
21 August 2026
Registered office
10 College Road, Harrow, HA1 1BE
Nature of business
Development of building projects (SIC 41100)
Year end
31 August (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 Harrow

Other active property development companies registered in Harrow.

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

Frequently asked questions

When are Oa Developments London Limited's accounts due?

Oa Developments London Limited's next accounts are due at Companies House by 21 May 2028 (in 587 days), covering the period to 31 August 2027.

When is Oa Developments London Limited's CT600 due?

The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 20 August 2027, due by 20 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is Oa Developments London Limited still trading?

Oa Developments London Limited 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 Oa Developments London Limited do?

Oa Developments London Limited is registered under Development of building projects (SIC 41100).

How old is Oa Developments London Limited?

Oa Developments London Limited was incorporated on 21 August 2026, less than a year ago.

What is the penalty if Oa Developments London Limited 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 Oa Developments London Limited 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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