Shadow Analysis For New Home Development

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Hello everyone,

We often do a shadow analysis for our new home development to make sure next door buildings have enough access to sunlight.



Shadow Analysis

Normally we study the area of shadows cast by our new building for four key dates through a year, namely Summer Solstice, Winter Solstice, Vernal Equinox (Spring) and Autumnal Equinox (Autumn).

Here the analysis example for our new home for Summer Solstice when the sun reaches the highest point in the sky.

The shadow covers only a small part of the neighbor building and it can access to a plenty of sunlight so it is all fine and also complied with the Council standard.

Below is for Winter Solstice when the sun angle is the lowest in the year.

Around the noon, the shadow still cast over a part of the neighbor building but the area is small and it is complied with the Council standard.

The last one is for Vernal Equinox (Spring) and Autumnal Equinox (Autumn) when the sun angle is at the middle between Summer and Winter Solstice.

The shadow covers a slightly larger part of the neighbor building in the morning than the other times but it is only just a couple of hours so it should be fine.

Complied with the Council standard.


Thanks for reading!!




影の調査(Shadow Analysis)












Shadow Analysis











Amazon OkuchiArchitectural Designer
Qualification: Degree of Architecture Studies and Graduate Diploma of Psychology (University Of Auckland) ; 2nd Grade Cad Technician (Japan)
Family: Extremely lovely wife, wonderfully kind mother in low, awesomely hardworking chickens, surprisingly lazy cat and unbelievably naughty dog.

I love architecture and design so much that I have been to so many buildings and places around the world such as Sydney Opera House in Sydney, CCTV building in Beijing, Empire State Building in New York, Royal Palace in Bangkok, Houryu-Ji in Nara, etc. However, the residential building attracts me the most. For nearly 10 years I have visited heaps of local and historical homes around New Zealand which I feel the builders’ great workmanship as well as occupants’ life.

From this experience my aim is to design and provide the comfortable and affordable houses with the spirit of Japanese workmanship that people enjoy and improve their quality of life.

In this blog I write my everyday experience of work to show what is a designer’s work and how it goes at Japan Homes.

Any comments or questions are very welcome.
Please let me know!