Fields Crescent, Waterlooville, Hampshire.

 

Planning Application submitted and approved by Havant Borough Council for a loft conversion that will add a new master bedroom and en-suite.

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En-Plan after discussion with the owners drafted a Certificate of Lawfulness Application for a new full height dormer and loft conversion to add a new master bedroom and en-suite that would allow this growing family the room it needs.  The Certificate of Lawfulness application was subsequently submitted to Havant Borough Council  and received planing approval as the volume created by the former fell within the permitted development rights of householder to extend their property by. In this instance the volume allowed is 40 cubic meters with the full height dormer coming in well below this figure. 

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Waterlooville is a town in Hampshire, England, situated about 8 miles north of Portsmouth. Historically a small village, it experienced significant growth in the 20th century, particularly after World War II, when it became a designated overspill town for London. Today, Waterlooville is a thriving suburban area with a mix of residential, commercial, and retail spaces. It serves as a commuter town for nearby cities like Portsmouth and Southampton, offering good transport links and amenities for its residents.

 

En-Plan have subsequently formulated a Building Regulations Full Plans Application to gain approval for the technical detail for the build and have now submitted and received approval for the specification shown.  the Construction phase is nearing completion and we look forward to showcasing the completed project in the future.

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Will I need planing permission for my loft conversion?

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Yes, in the UK, planning permission is often required for loft conversions, although there are certain circumstances where it may not be necessary. Whether or not planning permission is needed depends on various factors such as the size and design of the conversion, whether the property is in a designated area like a conservation area or national park, and whether the conversion would significantly alter the appearance of the building.

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In many cases, loft conversions can be carried out under permitted development rights, which allow certain types of development without the need for planning permission, subject to certain limits and conditions. However, it's always best to check with your local planning authority to confirm whether planning permission is required for your specific project. Additionally, building regulations approval will almost always be needed for a loft conversion to ensure that it meets health, safety, and structural standards.

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A loft conversion for your house is considered to be permitted development, not requiring an application for planning permission, subject to the following limits and conditions:

• A volume allowance of 40 cubic metres additional roof space for terraced houses*

• A volume allowance of 50 cubic metres additional roof space for detached and semi-detached houses*

• No extension beyond the plane of the existing roof slope of the principal elevation that fronts the highway

• No extension to be higher than the highest part of the roof

• Materials to be similar in appearance to the existing house

• No verandas, balconies or raised platforms

• Side-facing windows to be obscure-glazed; any opening to be 1.7m above the floor

• Roof extensions not to be permitted development in designated areas**

• Roof extensions, apart from hip to gable ones, to be set back, as far as practicable, at least 20cm from the original eaves

• The roof enlargement cannot overhang the outer face of the wall of the original house.

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Calculating the volume of a dormer involves a similar process to calculating the volume of a regular space, but you'll need to consider the shape of the dormer. Here's how you can do it:

1. Measure the Length, Width, and Height: Measure the length and width of the dormer from the outside edges. Then, measure the height from the base of the dormer to its highest point. Be sure to measure in the same units (e.g., meters or feet).

2. Calculate the Volume for the Main Rectangular Portion: If the dormer has a rectangular shape, calculate the volume of this portion first. Use the formula for the volume of a rectangular prism:

   Volume = Length × Width × Height

3. Calculate the Volume for any Additional Sections: If the dormer has any additional sections, such as triangular or trapezoidal shapes, calculate their volumes separately using the appropriate formulas. For a triangular prism, the formula is:

   Volume = (1/2) × Base × Height × Length

   For a trapezoidal prism, the formula is:

   Volume = (1/2) × (Base1 + Base2) × Height × Length

4. Add the Volumes Together: Once you have calculated the volumes for each section, add them together to find the total volume of the dormer.

   Total Volume = Volume of Main Rectangular Portion + Volume of Additional Sections

Remember to measure accurately and ensure consistency in units throughout your calculations. If the dormer has a complex shape, you may need to break it down into simpler geometric shapes to calculate the volume accurately.

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Further Information

 

If you would like to discuss any of the above or want find out more about how our Planning Consultancy and Architectural Design Services can work in perfect sync to achieve a successful outcome in the planning system please contact us and we will be only too happy to talk through any questions or development proposals you may have.

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