**Document:** Supporting Statement Detailed
**Application:** 26/00402/CON — Registered building consent for erection of a three-storey side extension - RB 203 (in association with 26/00265/GB)
**Decision:**
**Decision Date:**
**Parish:** Port St Mary
**Document Type:** report / planning_statement
**Source:** https://planningportal.im/a/130848-port-st-mary-22-shore-road-extension-erection/documents/1594474

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# Supporting Statement Detailed

## Supporting Statement 22 Shore Road Underway, Port St Mary Registered Building Consent

![A black and white photograph showing a coastal harbor scene with a red circle highlighting a stone building, set against a backdrop of terraced houses on a hillside.](https://images.planningportal.im/2026/04/7305240.jpg)

- 1. Introduction This statement supports the application for Registered Building Consent relating to works at 22 Shore Road Underway, Port St Mary. The proposal seeks to deliver a carefully considered extension that respects the historic character, setting, and significance of the registered building while enhancing the site in a sensitive and appropriate manner.
- 2. Planning History and Established Principle The site benefits from a strong planning history, with two previous approvals granted for dwellings of a similar scale:

- - 07/01000/CON
- - 20/00990/CON

Both permissions established the principle of development on the site. Importantly, these approvals were for separate dwellings, representing a more intensive form of development than what is currently proposed. The current scheme is for an extension only, resulting in reduced impact in terms of scale, occupancy, and overall use.

- 3. Historic Context Historic photographic evidence clearly demonstrates that a building previously existed on this site. The form appears simple, gable-fronted, and consistent with traditional coastal structures within the Underway.

The proposal draws direct inspiration from this former structure, reinstating a historic building presence and reinforcing the narrative of the area’s development.

- 4. Design Approach The design has been developed to reflect the vernacular character of the Underway. It avoids overly modern or dominant architectural features and instead adopts a simple, traditional form inspired by historic coastal buildings.

The extension is subordinate to the main property and respects the existing building hierarchy.

- 5. Materials and Appearance The use of a traditional oak frame structure ensures a high-quality and natural finish. Timber-style cladding at lower level references the maritime and working history of the site.

Materials have been selected to weather naturally over time, helping the building blend into its surroundings and soften its visual impact.

- 6. Impact on Registered Building The proposal does not result in loss of historic fabric and has been designed to ensure the registered building remains the dominant feature.

The extension preserves the character, scale, and setting of the original structure and is considered to have no harmful impact.

- 7. Impact on Wider Setting The Underway is characterised by simple coastal forms and strong links to maritime use. The proposal reinforces this through its scale, materials, and design approach.

It restores a historic building line and enhances the visual completeness of the terrace.

- 8. Parking and Use The proposal represents an improvement over previous approvals:

- - No additional dwelling created
- - Reduced occupancy levels
- - Retention of garage
- - Continued parking provision to the front

This is particularly important given known parking constraints in Port St Mary.

## 9. Additional Supporting Points

- - The proposal is less visually intrusive than previously approved schemes
- - It reinstates a historic form rather than introducing something new
- - It enhances the character of the area rather than detracting from it
- - Materials will soften over time, reducing visual impact
- - It responds positively to previous planning feedback
- - It avoids intensification of use and associated pressures
- - It respects neighbouring properties and the wider streetscape

### 10. SummaryIn summary, the proposal is a well-considered, sensitive extension that builds uponestablished planning precedent, reflects the historic character of the site, and results in areduced overall impact. It should be considered a positive and appropriate addition to theregistered building and its setting.

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*Data sourced from the Isle of Man public planning register under the [Isle of Man Open Government Licence](https://www.gov.im/about-this-site/open-government-licence/).*
*Canonical page: https://planningportal.im/a/130848-port-st-mary-22-shore-road-extension-erection/documents/1594474*