Flat Roof Wall Abutment Detail
Flat Roof Wall Abutment Detail

Flat roof wall abutment detail that was approved as part of the Full Plans Application Approved for the extension in Trowse, Norwich, Norfolk.

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Photograph of completed project in Norwich.
Photograph of completed project in Norwich.

Planning Application was approved for a single-storey rear extension and a two-storey side extension at this post war property in Trowse, Norfolk.

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View of the completed Extension.
View of the completed Extension.

Taken from the garden this photograph shows the completed kitchen and dining room in Trowse, Norfolk, in its full glory.

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Newton Close, Trowse, Norwich, Norfolk.


Proposed Development: Two-storey side extension and single storey rear extension and conversion of the garage to a bedroom.


Following initial discussion with the client iit was decided to allow for a single storey modern extension to the rear to allow for an extended kitchen and create a really exceptional open plan area for the family to use.  The two-storey side extension follows the vernacular of the main unit and adds a new bedroom at first floor and extends the lounge at ground floor.  The garage conversion adds yet another bedroom this  has added value to the property by just the permission alone.

With regard to the figures of how much an extension can add value to your property the below quote from Zoopla states the following:


 "Next on the list is adding an extra bedroom through building an extension, with this boosting the typical home's price by 11 per cent or £28,600. Putting in an extra bathroom typically adds 5 per cent or £13,000 to a property's value, as does increasing the floor space by 10 per cent." 25 Apr 2014

The value of the scheme as whole can add 22 percent just in the bedrooms alone and when you look at the quality of the finish the modern extension shown above has formed a focal point for the family to interact in and adds a real wow factor to the property.  We have included some more information with regard to extensions and garage conversions.  Please contact us if you have any questions and we will be happy to help. 

Application Ref: 2014/0387

Reference 2014/0387

Alternative Reference PP-03216183

Application Received: Wed 26 Feb 2014

Application Validated: Thu 27 Feb 2014

Address: Newton Close Trowse Norwich NR14 8TX

Proposal: Two-storey side extension, singe-storey rear extension, and conversion of garage into bedroom.

Status: Decided

Decision: Approval with Conditions

Further Information on Converting Your Garage

A well-thought out garage conversion can add as much as 10% to the value of your home. Expect to pay between £5,000 and £8,000 for converting the average single garage, making it one of the most cost effective ways to improve your property’s resale value.  An additional benefit is increased living space without incurring the costs and inconveniences of moving house.

Below, you’ll find the information needed to plan and carry out your garage conversion:

  • Design and space planning

  • Planning permission

  • Building regulations

  • Insulation and damp proofing

  • Plumbing and wiring

  • Flooring

  • Walls

  • Windows and doors

  • Pros and cons


Design and Space Planning

At five metres long by two and a half metres wide, the internal space of most garages is longer and thinner than most rooms in a house. To achieve a more natural shape, consider using stud or block walling to convert the garage into two rooms, typically a toilet, shower or storeroom.Consider also how you plan to use the rooms, and either make some drawings yourself or get some made.

Planning Permission

Planning permission is unnecessary if you don’t plan to alter the structure of the building, so a garage conversion is permitted in most circumstances. However:

  • If you live in a Listed Building or a Conservation Area, planning permission may be required for even minor modifications.

  • Some new build homes were built with a condition requiring the garage to remain as parking, so an application to remove it becomes necessary.

  • Standalone garages are more likely to require ‘change of use’ planning permission when converted to habitable rooms.

Building Regulations

The change of use from a garage to a habitable room will mean compliance with Building Regulations, including delivery of a building notice to your council. Building Regulations apply to:

  • moisture proofing

  • ventilation

  • insulation

  • fireproofing

  • escape routes

  • structural soundness.

As a result, almost any design decision must take them into account. For example:

  • When you divide up the garage, a new room is created. This room is subject to a set of Building Regulations that require an escape route and ventilation separate from the main room.

  • Alterations such as an infill wall replacing the original garage door will also be subject to Building Regulations concerning the foundations.

The building inspector will want to visually inspect windows, doors, fireproofing and foundations before he or she gives a certificate of completion. Once the building inspector is satisfied, the completion certificate should follow within 28 days. It is often much sooner.

Please call us on  07931 541 804 for a free no obligation consultation or email me on simon@en-plan.co.uk.  I look forward to talking through any proposals you may have.

Contact us

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Shropshire Office


Back Lane

Bomere Heath



Norfolk Office

34 Queen Elizabeth Avenue

Kings Lynn


PE30 4BX

“A friendly and professional service catering to all your planning, architectural and development needs."


- Simon Smith: Director: Director

En-Plan: Plannig & Architecture Chartered Planning Consultants Norfolk


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