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  4. Mackellar House Limited

Mackellar House Limited

ActiveMicro-entity accountsProperty developersMorden
Company number
14429745
Incorporated
19 Oct 20223 years trading
Registered office
Marshall House, 124 Middleton Road, Morden, Surrey, SM4 6RW
Nature of business
Development of building projects
Accounts due in
80 days
31 Dec 2026
Net assets
£100
+0.0% on the year before
Employees
0
Average during the year
From the Companies House register, 1 Oct 2026

Mackellar House Limited is a 3-year-old private limited company registered in Morden, company number 14429745, one of 86 property development companies in Morden. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Dec 2026
in 80 days
For the period to 31 Mar 2026
CT600 due (first of two)
31 Dec 2026
in 80 days
Period 1 Jan 2025 to 31 Dec 2025
CT600 due (second of two)
31 Mar 2027
in 170 days
Period 1 Jan 2026 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 81 days
9 months and 1 day after the period end
Confirmation statement
15 Nov 2026
in 34 days
Last made up to 1 Nov 2025

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Finances

From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.

  • Net assets unchanged on the year before, at £100.
  • No employees reported for the latest year (directors are often not counted as employees).
  • Balance sheets on record for 2 years, 2023 to 2024.

Net assets by year

Net assets at each year end, 2023 to 2024£0£50£10031 October 2023: net assets £100£100202331 December 2024: net assets £100£1002024
Net assets at each year end, 2023 to 2024£0£50£10031 October 2023: net assets £100£100202331 December 2024: net assets £100£1002024
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2024£100£1000
31 Oct 2023£100£1000

Where Mackellar House Limited is registered

Mackellar House Limited's registered office on a map of the UK

The registered office is in Morden (SM4), in the Merton local authority area, London. Show SM4 6RW on a map.

Other trade companies in SM4

Also registered at this address

19 other companies use the same registered office as Mackellar House Limited.

What happens if Mackellar House 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 31 December 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2028another 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
14429745
Status
Active
Company type
Private limited company
Incorporated
19 October 2022 (3 years ago)
Registered office
Marshall House, 124 Middleton Road, Morden, Surrey, SM4 6RW
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
1 November 2025
Previous names
Rao Developments London Ltd (until 20 Jun 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 Morden

Other active property development companies registered in Morden.

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

Frequently asked questions

When are Mackellar House Limited's accounts due?

Mackellar House Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.

When is Mackellar House 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 31 December 2025, due by 31 December 2026, 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 Mackellar House Limited still trading?

Mackellar House 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 Mackellar House Limited do?

Mackellar House Limited is registered under Development of building projects (SIC 41100).

How old is Mackellar House Limited?

Mackellar House Limited was incorporated on 19 October 2022, 3 years ago.

What is the penalty if Mackellar House 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 Mackellar House 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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