The idea that 'adding irregularities makes it stylish' is half a lie. Meaningless irregularities only ruin the appearance, increase costs, and raise the risk of water leaks.

Have you ever been told this by an architect during an exterior design meeting?

"Since a box shape looks too flat, let's add some irregularities here." "Let's push the wall out a bit to create an accent." "Let's extend the balcony to add a sense of depth."

Many homeowners believe that adding irregularities will make the exterior look cool. However, meaningless irregularities can actually 'ruin' the exterior rather than improve it.

This is my conclusion after being involved in over 7,000 housing projects. It is not about 'adding' irregularities, but whether they have 'meaning' that is everything.

Meaningful irregularities create shadows and depth in the exterior, making the space high-quality. Meaningless irregularities make the exterior look cluttered, increase costs, and raise the risk of water leaks.

What we are analyzing this time is a residential exterior that features a large white box as the main element. The irregularities are minimal. However, just the 'recess' of the entrance, the 'thickness' of the wooden louvers, and the 'layers' of the plantings are enough to create sufficient three-dimensionality and luxury. The right amount of irregularities in the necessary places. This is professional exterior design.

For those who are thinking, 'I want to add more irregularities to the exterior,' please read this article and consider whether those irregularities are truly necessary.

5 problems caused by 'meaningless irregularities'

Problem 1: The exterior looks cluttered. When you push walls in and out everywhere, the outline of the building becomes complex, and it takes time to read the shape. When it takes time for the brain to understand the shape, people feel it is 'messy' or 'unorganized.' The reason why a simple box feels 'cooler' is because the shape is understood quickly.

Problem 2: The exterior wall material division becomes unnatural. If you change the exterior wall material to match the irregularities, the question 'Why does the color change here?' remains. Meaningless division does not improve the exterior but makes it look like a 'patchwork'.

Problem 3: Rain management becomes complex. As irregularities increase, the connection between the exterior wall and the roof (rain management) becomes complex. The more inner corners (recessed corners) there are, the easier it is for rainwater to accumulate, increasing the risk of water leakage. A simple box shape is overwhelmingly safer for rain management.

Problem 4: Costs increase. Every time an irregularity is added, the exterior wall area increases, corner construction increases, and waterproofing treatment increases. Hundreds of thousands of yen are added for irregularities that are only there to 'look stylish'.

Problem 5: The floor plan becomes difficult to use. Exterior irregularities affect the interior floor plan. If you push a wall out, the number of indoor corners increases by that much, making it harder to place furniture. Sacrificing the floor plan just for the sake of the exterior is putting the cart before the horse.

Three 'meaningful irregularities' are enough

So, what kind of irregularities are meaningful? The answer is simple.

1. Recess the entrance to create 'depth'. Pull the entrance back 1 to 2 meters from the wall surface. This naturally creates an 'eave' above the entrance, allowing you to unlock the door without getting wet in the rain. Furthermore, a recessed entrance creates 'shadows,' giving the exterior depth. In this house, there is also a deep vertical slit-like approach on the right side. The recess creates an expectation that 'there is an entrance ahead,' enhancing the experience of returning home.

2. Create 'bands of shadow' with eaves or overhangs. Just by extending the roof or eaves deeply, horizontal shadows run across the exterior wall. These shadows add expression to the exterior as 'decoration without decoration'. Because the shape of the shadows changes depending on the time of day, the impression of the exterior changes between morning and evening. Eaves and overhangs are the most cost-effective elements among irregularities.

3. Create 'layers' with wooden louvers or lattices. Place a wooden louver in front of a white wall. This creates a layer of air between the 'wall' and the 'louver,' giving the exterior depth. The wooden louver on the left side of this house has exactly this effect. Louvers also serve as privacy screens, create a rhythm of light and shadow, and add warmth. Getting three effects from one element—this is a 'meaningful irregularity'.

Reading the color design of an exterior that is 'high-quality despite minimal irregularities' using Munsell values

I will break down the colors of this house using Munsell values. This is proof that you can get sufficient three-dimensionality with color, material, and light without increasing irregularities.

White to off-white (large exterior wall surface, approx. 38% of total): 10YR 8.5/1 to N9

About 40% of the exterior wall is a large white surface. 10YR 8.5/1 is a white with a slight warm tone. It is a color range that shows dirt less than pure white (N10) and dyes beautifully when hit by the warm light of an evening scene.

Because this white surface is large, slight bumps and recesses (the recessed entrance, the thickness of the louvers) stand out. In an exterior with many bumps and recesses, each individual one is buried in 'noise'. Because the surface is quiet, a few bumps and recesses appear as 'meaningful shadows'.

This is the essence of why 'reducing bumps and recesses makes it look higher quality'.

Wood (louvers, around the entrance, approx. 22% of total): 7.5YR 3/3 to 4/4

Wood accounts for about 20% of the total. Wood louvers are 'bumps and recesses' while also being a 'material'.

Meaningless bumps and recesses are just 'pushing the wall in and out'. Meaningful bumps and recesses 'change their role as the material changes'.

White wall to wood louvers. This switch in material conveys that 'from here on, this is a place with a different character'. White is tranquility. Wood is warmth. The bumps and recesses function as a 'boundary of character'—this is what a meaningful bump or recess is.

Black to charcoal (fence, shadows, approx. 17% of total): N1.5 to N3

Black exists only in the fence and shadows. The thin black line of the fence tightens the 'base' of the white wall.

The principle of bumps and recesses can be seen here too. The fence is in front of the wall. In other words, there is depth (layers) between the 'wall' and the 'fence'. This layer adds a three-dimensional feel to a flat exterior. With just one fence, a 'layer of depth' is created in the exterior.

Greenery of plantings (approx. 12% of total): 5G 3/3 to 4/4

The plantings create a 'soft layer' in front of the white wall. This is also a type of 'bump or recess'.

Plantings change shape with the seasons, sway in the wind, and create shadows in the light. Architectural bumps and recesses are fixed, but the bumps and recesses of plantings 'move'. When moving shadows fall on the white wall, the wall surface turns into a 'living surface'.

The reason why 'reducing bumps and recesses' looks higher quality

Having read this far, haven't you noticed something?

This house actually only has three bumps/recesses. (1) The recessed entrance (deep approach). (2) Wood louvers (layer in front of the wall). (3) Fence + plantings (layer at the base).

Just three. But it is sufficiently three-dimensional and looks high quality.

Why? Because the 'quiet large surface' comes first, a few bumps and recesses have 'meaning'.

In a house with 10 bumps and recesses, the meaning of each one is diluted. In a house with 3 bumps and recesses, each one becomes a 'protagonist'.

Subtraction is harder than addition. But only an exterior that has been subtracted looks high-quality.

8 Laws That Work for This Space

1. Judge texture by whether it has 'meaning'. Aimless texture ruins the exterior, increases costs, and raises the risk of water leaks.

2. Three meaningful textures are enough. A recessed entrance + a layer of louvers + a fence and plantings at the base.

3. A large white surface is 'quiet,' which is why texture has 'meaning'. The quieter the surface, the more a little texture stands out.

4. Align texture with 'material changes'. Don't just push and pull the walls; let the role change as the material changes.

5. Plantings are the most effective 'moving texture'. They sway in the wind, shadows move, and the white wall turns into a 'living surface'.

6. Organize with three colors. 38% white (serenity) + 22% wood (warmth) + 17% black (outline) + 12% green (vitality).

7. Indirect evening lighting maximizes the shadows of the texture. Light from a low position beautifully highlights the shadows of the white wall, wood, and fence.

8. Reducing texture improves rain management, costs, and floor plans. A simple shape is safe, inexpensive, and easy to use.

Candidate Materials You Can Actually Use

1. For a large white plastered wall: AICA Kogyo 'Jolipad Alpha JP-100'. A seamless white surface becomes the star of an exterior with minimal texture. → https://www.aica.co.jp/

2. For wood louvers (privacy + shadow): YKK AP 'Lucius Screen Fence' SF-M. Add a layer of wood in front of the white wall to create depth and warmth simultaneously. → https://www.ykkap.co.jp/

3. For a cement-based accent wall: KMEW 'SOLIDO' SL-N. Add weight and texture to the base to make the white box look stable. → https://www.kmew.co.jp/shouhin/solido/

3 Points to Check

1. Check if there are '5 or more' textures on the elevation drawing. If there are 5 or more, discuss with the designer whether they are all truly necessary. If you ask 'What is this texture for?' and there is no clear answer, it may be possible to remove it.

2. Check the rain management of the 'inner corners' associated with the texture. Rainwater tends to collect where the wall is recessed. Just asking 'How is the waterproofing handled here?' will improve construction precision.

3. Consider if you can reduce one texture and add one plant. Architectural texture is fixed, costly, and requires maintenance. Plantings move, grow, and are inexpensive. In many cases, it is more rational to create the same 'three-dimensional effect' with plantings rather than architecture.

An exterior that can be 'subtracted' is the most beautiful

It is easy to think that the more texture you add, the more 'stylish' it becomes. But a truly beautiful exterior has little texture.

A large white surface. Wooden louvers in front of it. A fence and plantings at the base. Light from a low position at night.

With just this, a hotel-like sense of luxury is created.

How many 'meaningless bumps and indentations' are there on your exterior?For every one you remove, the exterior becomes quieter and more refined.

Architectural Consultant Koike | Amigo Housing Seminar

Drawing from 27 years and over 7,000 housing consultations, I deliver a 'discerning eye' and 'words to convey'.

I also accept individual consultations via my official LINE account.

▼ Click here for the Amigo Housing Seminar official LINE https://lin.ee/Sl1Cx1k

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