Architectural design specialists - Home extension plans

_ House Extensions Plans Specialist _

House extension plans and ideas

Home extension plans - Gold Coast - Brisbane - Northern NSW.

Choosing to extend your home is often a decision after considering designing and building a new home and the costs assocated with selling, legal fees, and moving costs. You may also like your location due to the local facilities and schools. Your existing home may have special character or have a sentimental place in your heart.

To make the most of your investment, and to effectively plan your house extension, experience and flair needs to be applied with detailed construction knowledge and fresh design ideas as well as having an understanding of your requirements.

SKETCH3D Residential Design is a building design specialist, knowing how to approach each individual home, considering your requirements to get the most of out your proposed alterations, extensions or whole house renovations. With every design commision we visit your home, this allows us to get a full understanding of the space, construction and setting. We strive to meet your ideal design outcome.

We discuss your house extension requirements and your ideas with you to form a design brief. This brief becomes our objective. Using our knowledge and experience we will advise you where the design will need to be tweaked to get the most out of your proposal and we will strive to exceed your expectations.

After the initial design we will submit the house extension design to a certifier for review and approvals. We will act as your agent, so for the most part all you need to worry about is paying the fees and waiting for the descisions. We work to ensure that the designs that go in for the required applications have had the construction thought out and can be built generally without fundamental modification to the design.

The design process takes into account many aspects based on the client brief.

  • Size and appearance of the extension against the existing house.
  • Internal functionality of the proposal to best ensure the design flows and can be furnished allowing you the client to get the most enjoyment out of your investment.
  • Sun shadow fall over the extension and its impact on surrounding properties.
  • As standard for most projects we offer BIMx interactive 3D walkthroughs and static 3D images.

At the end of the design process we can aid you with the selection of a suitable builder for your extension or renovation project.

Other building works you may consider include conversions to utilise the space you already have and an energy efficiency make over.

We are proud of the quality of service we provide. See example house extension plans.

_ Typical styles of house extension plans and granny annex designs _

Single Storey rear extension plans 

Single storey house extensions
Most house extensions tend to be single storey designs, projecting from the rear of the existing house. These type of extensions are used to form additional living rooms and often combined with kitchens creating open plan kitchen, dining , living room extensions.
Other more simple single storey extension designs are side extensions, often designed to form utility rooms, ground floor toilet facilities, garages and sometimes to knock through into the existing house to enlarge an existing room.
Single storey extension plans do sometimes project to the front of the house, these often forming entrance halls, toilet facilities or to enlarge existing front rooms.
Front, side and rear extension plans are often combined to form wrap around extensions. With clever engineering it is possible to remove whole corners of the existing homes to open the house out into the extensions creating vast open plan living spaces.
In many cases side and rear extensions can be built without planning approval using permitted development rights. Front extensions with the exception of some porch designs
will most likely require planning approval.

 

 

Double storey front and side house extension plans Two storey house extensions
Plans for two storey house extensions are popular when a client requires an extra bedroom or to simply better proportion the sizes of the existing bedrooms within their house. Often the ground floor part of the extension is used to contain a ground floor WC, a bigger kitchen and sometimes an improved living room.
Double storey extensions are very often combined with single storey extensions to gain the best possible use of space without the expense of a full double storey extension and sometimes the extension is designed to consider the circulation required to access a loft conversion.
In most cases a double storey extension will require planning approval however under certain circumstances the plans can be kept within the parameters of permitted development.
On many modern style houses, 2 storey extension plans can incorporate an existing side garage providing that the existing foundations have been confirmed as suitable for the construction over. To support the first floor an amount of structural engineering is required, this however when properly considered should not be a reason to put the build out of budget.

 

 

Granny annex two storey house extension plan 

Annex designs
Commonly known as a 'Granny Annex' these type of house extensions are ideally suited to accomadating extended family or giving independance to a family member who might be struggling phyically for financially while keeping them within the home evironment.
Sometimes after the immediate need for the annex has passed, the additional room is let out to help the home owner meet mortgage payments or just provide an extra income.
An annex while prodominently self contained must share facilities so as to remain as part of the dwelling. When planning permission is granted there will often be a condition attached which will ensure that the annex remains part of the original house and not sold as a separate dweling. Independant separate front doors and garden access are generally acceptable as are separate stairs for two storey designs. You could meter gas, electric and water to the annex and the original house separately and provide independant heating systems, however providing services separately can add cost to the overall proposal.

 

 

 

When considering the design of a house extension there are several things which need to be considered

1. Are you creating any additional bedrooms? If so will there be enough parking spaces to meet with the local authority parking standards.

2. Has the design identified foul drainage? Access to existing foul drainage is important for connecting new bathrooms, en-suites, kitchens and utility rooms. Although there are mechanical methods to deal with foul waste, gravity systems are the best solution when it comes to low noise and maintenance.

3. Will the design affect the underground services such as electric, gas and phone? Relocating these services while generally possible can be expensive and so, unless you really need to move them to achieve the design you want, they are best left alone.

4. Trees will affect the construction of the extension and in some cases trees are protected, requiring permission to remove them or carry out any significant pruning. Root protection zones and method statements are generally required at planning stage to document how the trees will be protected during construction. The effects of tree roots can affect how deep footings are cast subject to the building inspectors approval.

5. Access is an often over looked part of the design. Building right to the boundary might be your only solution to achieving the space you want, however if this blocks the access, say from the front of the property to the rear and there is no other access routes, consideration should be given to how you would move items such as gardening equipment, bins etc from the rear of the house to the street. It might be that the only route is straight through the house meaning you will need to be prepared for the resulting mess.
Access into an exten
sion of the house internally can often be an after thought if not considered early on in the design. Long hallways and dog leg routes can make a house feel unconfortable and claustorphobic. Taking disproportionate amounts of space from existing bedrooms to achieve the goal of access might make result in the extension being a pointless excersise if your plan was to create more bedrooms.

6. Heating and cooling systems of a home are worth considering early in the design. The fabric of the building needs to be built to a high standard in the first instance, then which ever heating and coolings systems you install, you will get the best possible performance.

7. The extension designs can have an impact on the neighboring properties in serveral ways. Loss of light and outlook needs to be considered.

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