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  4. Rosslyn Development Ltd

Rosslyn Development Ltd

ActiveMicro-entity accountsProperty developersLondonderry
Company number
NI608936
Incorporated
8 Sep 201115 years trading
Registered office
30 Deanfield, Londonderry, BT47 6HY
Nature of business
Development of building projects
Accounts due in
261 days
30 Jun 2027
Net assets
£9,602▲
+27.4% on the year before
Employees
0
Average during the year
Checked with Companies House 12 Oct 2026

Rosslyn Development Ltd is a 15-year-old private limited company registered in Londonderry, company number NI608936, one of 79 property development companies in Londonderry. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.

Key dates

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

Accounts due
30 Jun 2027
in 261 days
For the period to 30 Sep 2026
CT600 due
30 Sep 2027
in 353 days
Period 1 Oct 2025 to 30 Sep 2026
Corporation tax payment
1 Jul 2027
in 262 days
9 months and 1 day after the period end
Confirmation statement
22 Sep 2027
in 345 days
Last made up to 8 Sep 2026

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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 up £2,067 (+27.4%) on the year before, to £9,602.
  • Net assets rose in 7 of 9 year-on-year comparisons on record.
  • Current assets of £186K against £172K owed within a year: 1.1 times cover.
  • No employees reported for the latest year (directors are often not counted as employees).
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£25K30 September 2016: net assets -£19K-£19K201630 September 2017: net assets -£8,165-£8,165201730 September 2018: net assets £5,774£5,774201830 September 2019: net assets £42K£42K201930 September 2020: net assets £1,424£1,424202030 September 2021: net assets £175£175202130 September 2022: net assets £2,557£2,557202230 September 2023: net assets £5,387£5,387202330 September 2024: net assets £7,535£7,535202430 September 2025: net assets £9,602£9,6022025
Net assets at each year end, 2016 to 2025£0£25K30 September 2016: net assets -£19K-£19K'1630 September 2017: net assets -£8,165-£8,165'1730 September 2018: net assets £5,774£5,774'1830 September 2019: net assets £42K£42K'1930 September 2020: net assets £1,424£1,424'2030 September 2021: net assets £175£175'2130 September 2022: net assets £2,557£2,557'2230 September 2023: net assets £5,387£5,387'2330 September 2024: net assets £7,535£7,535'2430 September 2025: net assets £9,602£9,602'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
30 Sep 2025£9,602£186K£172K0
30 Sep 2024£7,535£189K£168K0
30 Sep 2023£5,387£189K£160K0
30 Sep 2022£2,557£190K£153K0
30 Sep 2021£175£189K£190K0
30 Sep 2020£1,424£210K£209K0
30 Sep 2019£42K£162K£119K0
30 Sep 2018£5,774£225K£219K
30 Sep 2017-£8,165£7,851£480K£488K
30 Sep 2016-£19K£759£501K£520K

Who runs and owns Rosslyn Development Ltd

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
E*** M***DirectorSep 2011
J*** M***DirectorSep 2011

Person with significant control

Individual · since Aug 2016
J*** M***
Owns 25% to 50% of the shares

Where Rosslyn Development Ltd is registered

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

The registered office is in Londonderry (BT47), in the Derry City and Strabane local authority area, Northern Ireland. Show BT47 6HY on a map.

Other trade companies in BT47

What happens if Rosslyn 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 30 June 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jul 2027 to 31 Jul 2027£150
1 to 3 months late1 Aug 2027 to 30 Sep 2027£375
3 to 6 months late1 Oct 2027 to 31 Dec 2027£750
More than 6 months lateFrom 1 Jan 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Oct 2027£200
3 months late30 Dec 2027another £200
6 months late30 Mar 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Sep 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
NI608936
Status
Active
Company type
Private limited company
Incorporated
8 September 2011 (15 years ago)
Registered office
30 Deanfield, Londonderry, BT47 6HY
Nature of business
Development of building projects (SIC 41100)
Year end
30 September (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
30 September 2025
Last confirmation statement
8 September 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 Londonderry

Other active property development companies registered in Londonderry.

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

Frequently asked questions

When are Rosslyn Development Ltd's accounts due?

Rosslyn Development Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.

When is Rosslyn Development Ltd's CT600 due?

The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.

Is Rosslyn Development Ltd still trading?

Rosslyn Development 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 Rosslyn Development Ltd do?

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

How old is Rosslyn Development Ltd?

Rosslyn Development Ltd was incorporated on 8 September 2011, 15 years ago.

Who runs Rosslyn Development Ltd?

Rosslyn Development Ltd has 2 active directors, the longest-serving appointed in Sep 2011. Their names and service addresses are on the Companies House register.

Who owns Rosslyn Development Ltd?

One person or company has significant control of Rosslyn Development Ltd: an individual (owns 25% to 50% of the shares).

What is the penalty if Rosslyn 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 Rosslyn 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, 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.

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