Your granny flat is ready to move in with our basic inclusions, keeping your project to time and budget — but a few special upgrades can add interest, value, and homeliness.
Our standard range and price contain everything you need for a turnkey home. A few thoughtful upgrades can make a big difference to how your home looks, feels, and functions. From striking features like cathedral ceilings and skillion roofs to practical additions like carports, wall-hung vanities, and extra windows for added light and ventilation, these are the little details that elevate a home. Browse through some of our most requested extras below—perfect for adding style, comfort, and long-term value to your new granny flat or extension.
Standard Window and Door Inclusions
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Windows: Aluminium framed sliding windows with flyscreens and keyed locks, in your choice of colours from the Acrow Standard Range
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Glazing: Clear glass with options to upgrade to obscure, frosted, or tinted glass
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External Doors: Aluminium framed glass sliding doors to living areas, or hinged entry doors depending on the design
Our standard windows offer great function and natural light – and are all sized to make sure NatHers and BASIX are met for fast approvals — but adding highlight windows can dramatically enhance the beauty and liveability of your home.
Highlight Windows: Adding Light and Style
Highlight windows are smaller windows placed higher on the wall, above eye level. They allow more natural light to enter the space while maintaining privacy. Often positioned near the ceiling or above other features like sliding doors, highlight windows help brighten interiors, create interesting shadow lines, and bring in light from multiple angles throughout the day.
What Are Highlight Windows?
Highlight windows are horizontal or vertical windows typically set above head height. They’re often used to: 
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Capture extra daylight without compromising privacy
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Frame views of the sky or treetops rather than neighbouring properties
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Create a modern architectural look
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Improve cross-ventilation when operable highlight windows are used
They are a popular addition in living areas, bedrooms, and bathrooms, especially when combined with raked or cathedral ceilings to maximise the effect of space and light.
Why Add Highlight Windows?
Adding highlight windows has both practical and aesthetic benefits:
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Natural Light: Brightens up darker parts of the home that standard windows may not reach.
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Privacy: Maintains wall privacy while still opening up the space visually.
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Energy Efficiency: Reduces reliance on artificial lighting during the day, helping to lower energy costs.
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Architectural Detail: Adds a sophisticated, modern touch to the look and feel of any room.
Highlight windows are particularly effective when installed on north-facing walls, capturing maximum natural light in Australian homes.
Options for Highlight Windows
Depending on your home’s design and your preferences, highlight windows can be:
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Fixed (non-opening) for light only
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Louvre-style for ventilation and airflow
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Awning windows (hinged at the top) that can be opened even in wet weather
Our team can guide you through the options that best suit your floorplan and your goals for airflow, light, and style.
Challenges with Window Upgrades
While highlight windows add immense value and beauty, they do require some design considerations:
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Additional windows can affect the building’s overall energy performance rating under NatHERS/BASIX, particularly depending on size, orientation, and glazing type.
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Upgrades may require structural framing changes, which can impact build cost and timeframes.
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Approvals: Changes to window placements and sizes can sometimes require adjustments to approved floorplans or additional compliance checks, depending on your local council or certifier.
We always recommend discussing these options early in your design process to ensure any changes are achievable.
Building Your Perfect Home
At Acrow, we start with a floorplan that fits your block and the flow you want in your home — and then we build it around your personal tastes and lifestyle. We recommend starting with an initial quote based on our standard inclusions and then selecting upgrades from there. It’s the simplest and most affordable way to achieve a home that feels just right for you.