Example Double Storey House Extension plans, Elanora, Gold Coast
The following example double storey house extension has been design and drafted for a local gold coast builder as his own home.
The design consists of ground and upper floor extensions above the existing single storey house. The design captures the stunning views over the lake to the rear from the new double storey balcony extension to the rear, creating outdoor living and entertaining spaces to both levels.
Also featuring in this home extension design is a new porch. Use of differing materials and wall lines articulates the elevations adding interest to the external appearance rather than having long featureless elevations and reducing the dominate appearance over the neighbours.
Overall the house has been modernised with a more functional kitchen and living spaces as well as additional bedrooms and a room for a home office / studio.
The design and drafting services include an interactive 3D walkthough at no cost to the client, used to explore and assist in the understanding of the home extension design ideas rather than trying to read 2D plans alone. A massive advantage for builders and home owners.
View further example house extension plan ideas. or for your own "Grand Design" Contact us for a free quotation or call 0406 807833
- Sketch render view - Site plan - Existing floor plan - Demolition plan - Existing front and side elevations - Existing rear and side elevations -
- Proposed ground floor house extension design - Proposed first floor house extension design - Proposed roof plan -
- Proposed front and side elevations - Proposed rear and side elevations - Proposed cross Section A-A - Proposed Section B-B -
3D Visualisation - Sketch render effect
Projects involving external works benefit from 3D views as part of the drawing package to explain the design ideas and intent to all contractors as well as a cover sheet to the design documents. This project in Elanora on the Gold Coast backs onto a lake, the 3D view clearly shows the stepping of the rear of the property. Black and white / greyscale to keep printing costs and file sizes low. The sketch render effect is easier on the eye than hard line CAD drawings, explains the design intent and avoids the distraction of details that are covered in technical working drawings.. - Return to top
House extension - Site Plan
When drafting a house plan, extension or renovation design, a site plan is required, showing the setbacks from the boundaries, the location of the works, site coverage and important site features that will affect the building application. This particular house extension design on the Gold Coast had some existing terraced yard leading down to the waterfront which was to be retained, this was indicated on the plans drafted. - Return to top
House extension - Existing Floor Plan
The existing floor plan is drafted showing the relevant areas of the house as it stands.before the new extension - Return to top
Demolition Plan
The demoltion floor plan indicates the areas being demolished. The assists the builder and their trades to determine what to remove and what areas need to be made good. For instance, ceilings patched and repairs after walls removed, door and window openings and flooring - Return to top
Existing front and side house elevations
The existing house elevations are drafted showing the external appearance and finishes, this allows a comparison between the existing house and the proposed extension design and assists the builder in planning for the junction between new and old surfaces - Return to top
Existing rear and side house elevations
The existing house elevations are drafted showing the external appearance and finishes, this allows a comparison between the existing house and the proposed extension design and assists the builder in planning for the junction between new and old surfaces - Return to top
Proposed Lower floor plan house extension design
The ground floor of this house extension design consists of altering and converting ares of existing internal floor space to for a studio, home office and media room. The rear of the existing house has been extended and the space combined to form a large open plan living, dining and kitchen area. A raised deck to the rear forms an outdoor living space overlooking the water. There was alot of structure supporting the new upper floor, part of the design process involves working out the best way to ensure new heavy structure is as discrete as possible so as new and old combine seamlessly - Return to top
Proposed Upper floor plan house extension design
The upper floor plan extension over the existing single storey house has 3 additional bedroom, a large family lounge and family bathroom. Stairs have been positioned to provide the best access and optimal space from the lower floor. To the rear of the house is the first floor balcony, this provides an extension to the lounge, access from 2 of the bedrooms and looks over the lake and hinterland in the distance. The balcony roof also shades the main house from the high summer sun during hottest parts of the day, all but the late afternoon sun is shaded, cafe blinds taking care of those last couple of hours keeping the house feeling light and breezy - Return to top
Proposed Roof plan house extension design
The roof plan clearly indicates the intended roof layout, indicating to the builder and their contractors the intended roof pitches and features. - Return to top
Proposed extension design - Front and Side elevations
The elevation drawings indicate the intended proposed external form and finishes. The front elevation showing the first floor extension over the existing house from the street. The side elevation showing the new extension and the balcony also indicating the fall in the terrain down to the lake. As part of an extension design, articulation and variety of materials in important to prevent the newly extended home from appearing overbearing to the neighbours. - Return to top
Proposed extension design - Rear and Side elevations
The rear elevation shows the first floor extension along with the proposed balcony over the existing single storey house from the lake. The side elevation showing the new extension and the balcony over the lake. Note small sections of roof down each side of the upper floor extension. This is to provide the require setback distance from the boundaries and also allows the heavy steel structure required to be concealed. - Return to top
Home extension - Cross Section through balcony
The cross section is slice through the house showing the construction, heights and relative positions of the building features. Note that there was opportunity to add further bulk insulation to the ceilings. Combined with a anti-con blanket under the roof sheet, heat is kept out of the house in summer and retained in winter. Bulk insulation at ceiling level is highly recommended when any form of airconditioning or space heating is used. - Return to top
Home extension - Section through upper floor design
This section is slice through the proposed upper floor house extension, indicating the junction to the existing lower floor and relative levels. - Return to top
