Dalecki Design HQ

After moving into the brand new Dalecki Design Headquarters at the start of 2019, we are now well and truly settled into our new digs.

As a firm who strongly believes in well designed spaces (it is literally what we do all day, every day!) it was only fitting that we had the opportunity to create our own, beautifully designed space to inspire us and stimulate good design.

We wanted to be able to share the beautiful new space with you, so we have had it photographed! 

Check out our new space below, or pop in and see us on Bulwer Street!

Photography Credit: Dion Robeson

Styling: Matt Biocich

Fit out: Limitless Building

Janik Dalecki

We are extremely excited to see our project, 'The Arabella' (pictured right) take one step closer to site. We are in the process of completing the construction documentation and interior design for this beauty, ready for it to head to site with Hardy Constructions later this year. We cannot wait to see the breathtaking roof terrace and cascading landscaping come to life, not to mention the spectacular interiors!

Another of our beautiful gems (pictured left) has just made it to site, with construction already commencing! This new home has been purposefully designed to be sympathetic to the existing streetscape, respecting the form of the surrounding homes, but creating a statement with a modern material palette.

Janik Dalecki

Over the Christmas break, we took a little road trip down to Esperance to check out the site of one of our new projects.

Since then, we have been working on the design concepts for this stunning little seaside home, right in the heart of town. The brief for this one was simple- to create a home suited to a young family utilising a simple structure and material palette. The home needed to make a design statement, without looking out of place in the streetscape. We can't wait to continue developing this design (and maybe organise another site visit or two...).

Esperance Project
Janik Dalecki


In our last blog, we covered correct window shading and the use of thermal mass to stay warm in winter and cool in summer. This week, we are going to look at insulation and sealing, which again plays a huge role in keeping your house both warm in winter, but also cool in summer.



Insulation helps prevent any unwanted heat from entering the house during the warmer summer months and also prevents heat existing your house during the cooler winter months. In the summer months, this insulation acts as a barrier to heat flow, preventing the unwanted hot air in summer from entering into the house through the walls, floors and even roof. During winter this insulation works in the opposite way, acting as a blanket to your home, preventing the warm air inside your home from escaping. Insulation comes in many different types and forms, with different varieties working better for different applications, depending on the location. Correct insulation should be used in all areas of the house for maximum result, there is little point in over insulating one area of the home to then neglect another. A good way to think about insulation within your house is filling a bucket with water, if there are no holes in the bucket no water will escape, however, if you place a hole in the bucket, the water will slowly escape and the more holes, the faster the water escapes. Your house is like this bucket, if you insulate your whole home, leaving certain areas uninsulated, the heat will find its way to this ‘hole’ and exit or enter. The more ’holes’ in your house (uninsulated areas) the faster the heat will escape or enter.



Air leakage is another factor to consider when building your own home. Air leakage can account for up to 20% of winter heat loss, along with a considerable amount of cool air lost in the summer months. Much like the bucket example above, sealing your house correctly works in the same way. Whilst it is still important for our homes to be correctly ventilated to ensure fresh air throughout, if this air leakage is minimised, ventilation can be controlled through desired openings to ensure no unnecessary warm or cool air is gained or lost.

Janik Dalecki


Staying warm in winter and cool in summer, without auxiliary heating and cooling.

Two big factors in keeping your house both warm in winter, but also cool in summer are correct window shading and thermal mass.



Correct shading greatly reduces the inside temperature of your house throughout the warmer summer months, improving your comfort levels without any auxiliary cooling. However, did you know that incorrectly positioned and sized shading could also block out the warming winter sun, leaving you with a fridge for a house during winter?

Window and wall shadings are crucial in reducing unwanted heat gain during the hot summer months. Many people are unaware that unprotected glass is actually the greatest source of heat gain to a house. Effective shading such as window awnings or shutters, eaves, pergolas and even plantings can block up to 90% of the summer heat.

It is crucial that window shading be designed to block out all summer sun, whilst still allowing the winter sun to penetrate deeply into the home. This is easily done through correctly sized and located shading, paired with good planning and good design. Poorly designed fixed shading structures can end up blocking out the winter sun and natural winter heating, resulting in a cool house during summer but an even colder house in winter. During the winter months, the sun is at a much lower angle, which means that with the correct shading devices; this lower angle winter sun can penetrate through or under the shading and enter deep into your home. However, it is a fine balance with the specific shading for each specific window size, location and orientation.



Thermal mass

Thermal mass is the ability of a material to absorb and store heat energy. High-density materials such as concrete, bricks, stone and even tiles require a large amount of energy to change their overall temperature. Therefore, they are fantastic materials to use to maintain thermal comfort within your home, when utilised in the right location. However, badly placed thermal mass can worsen the extremes of the climate by storing and radiating heat in summer and the opposite in winter. Good thermal design will moderate the indoor air temperature throughout all seasons of the year.

In winter, the thermal mass stores heat from the direct daytime sunlight and then releases this throughout the evening when the internal air temperature drops.  In summer, the thermal mass works the opposite way and should be shaded from direct sunlight. This allows the thermal mass to absorb internal energy from the heat within the air inside the house during the day. The cool night breeze then passes over the thermal mass, drawing out any daytime stored energy, which then in return, cools the overall internal temperature for the day to come.

As you can now begin to see, each of the individual passive solar design elements ties in with one another and, if each are not considered equally, then the overall balance is off. Each factor needs to be addressed and included to ensure your home operates correctly.

Janik Dalecki