- Companies
- Property developers
- Saffron Walden
- Rockmount Construction Ltd
Rockmount Construction Ltd
- Company number
- 16128761
- Incorporated
- 10 Dec 20241 year trading
- Registered office
- Market House, 10 Market Walk, Saffron Walden, Essex, CB10 1JZ
- Nature of business
- Development of building projects
Rockmount Construction Ltd is a 1-year-old private limited company registered in Saffron Walden, company number 16128761, one of 92 property development companies in Saffron Walden. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Rockmount Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2025
From the balance sheet at 30 November 2025, as filed at Companies House.
Who runs and owns Rockmount Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (3)
| Name | Role | Appointed |
|---|---|---|
| R*** W*** | Director | Dec 2024 |
| C*** P*** | Director | Feb 2025 |
| J*** Y*** | Director | Feb 2025 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| J*** B*** | Director | Feb 2025 | Jul 2025 |
| M*** N*** | Director | Dec 2024 | Jul 2026 |
Person with significant control
Where Rockmount Construction Ltd is registered
The registered office is in Saffron Walden (CB10), in the Uttlesford local authority area, East of England. Show CB10 1JZ on a map.
Other trade companies in CB10
- 1841 Properties LimitedProperty developers
- Bovingdons Developments LtdProperty developers
- JDSW Construction Services LtdBuilders
- Foresite Fencing LtdInstallers
- Greenfield 1 LimitedProperty developers
- Greenfield 2 LimitedProperty developers
- Jet Developments Essex LimitedProperty developers
- CC Arch Scaffolding LtdScaffolders
Also registered at this address
17 other companies use the same registered office as Rockmount Construction Ltd.
- Alliance Intelligent Scaffolding LtdScaffolders
- Bowler DB Holdings LimitedProperty developers
- Bowler Holdings LimitedProperty developers
- Crocus Grounds Maintenance LimitedLandscapers and gardeners
- Follis Investments LimitedProperty developers
- Ford Homes LimitedProperty developers
- Garson's Group LimitedLandscapers and gardeners
- Greenfield 1 LimitedProperty developers
- Greenfield 2 LimitedProperty developers
- JMJ Construction LimitedProperty developers
- Metaplan LimitedProperty developers
- Plough Ridge LimitedProperty developers
- Robin Grayson LimitedGroundworks and demolition
- Rockmount Group LimitedBuilders
- SB Civil Engineering LimitedCivil engineering
- SB Sheds & Fencing LimitedFinishing trades
- TQ500 LimitedMotor traders
What happens if Rockmount Construction 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2028 | 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
- 16128761
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 December 2024 (1 year ago)
- Registered office
- Market House, 10 Market Walk, Saffron Walden, Essex, CB10 1JZ
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 9 December 2025
- Previous names
- RM Welwyn Limited (until 21 May 2025)
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 Saffron Walden
Other active property development companies registered in Saffron Walden.
- Rotherfield Developments Limited2024
- Round Brick Ltd2011
- Rowe Build & Development Limited2002
- Sackville Rogers (Bury Farm North End) Limited2023
- Sharp Built Homes Ltd2021
- Sibbards Investments Limited2017
- Silverwood Architecture and Building Services Ltd2012
- Spotlight Construction Limited2025
All property development companies in Saffron Walden · All trades in Saffron Walden · Property developers across the UK
Frequently asked questions
When are Rockmount Construction Ltd's accounts due?
Rockmount Construction Ltd's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Rockmount Construction Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Rockmount Construction Ltd still trading?
Rockmount Construction 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 Rockmount Construction Ltd do?
Rockmount Construction Ltd is registered under Development of building projects (SIC 41100).
How old is Rockmount Construction Ltd?
Rockmount Construction Ltd was incorporated on 10 December 2024, 1 year ago.
Who runs Rockmount Construction Ltd?
Rockmount Construction Ltd has 3 active directors, the longest-serving appointed in Dec 2024. Their names and service addresses are on the Companies House register.
Who owns Rockmount Construction Ltd?
One person or company has significant control of Rockmount Construction Ltd: Rockmount Group Limited (owns 75% or more of the shares).
What is the penalty if Rockmount Construction 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 Rockmount Construction Ltd on Companies House for filed documents, officers and the full history.
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.