A 118sqm House on a 30,000sqm Property: Which Area Is Being Quoted?

HARASAWA Orchard Glamping Villa in Minakami, Gunma stands in 30,000sqm of orchard.

The same description carries a second figure. The log house called The Apple has a total floor area of 118sqm and sleeps up to six.

Both are written in square metres. One is an orchard, the other a house. Two numbers 254 times apart, sharing a unit.

The same unit, covering things seven times apart

Of the 654 stays listed on Tomaribi, 200 publish an area in square metres in their text, or 30%: 98 villas and 102 glamping sites, almost evenly split.

Across those 200, square metres appear 309 times. Classified mechanically by the words around each figure, they fall out like this.

What is measured	Occurrences	Median
Room or building	136	100sqm
Grounds	53	685sqm
Dog run	46	150sqm
Could not classify	21	76sqm
Total floor area	13	118sqm
Terrace or deck	12	79sqm
Pool	12	101.5sqm
Garden, bathroom, other	16	n/a

A median of 100sqm for rooms against 685sqm for grounds: close to seven times. By range, rooms run 10 to 340sqm and grounds 25 to 14,000sqm, an order of magnitude apart.

At the 14,000 end sits Villa Gurifarm Shichiriiwa in Yamanashi: grounds of 14,000sqm, two buildings, a capacity of six. It was designed by an internationally known architect and looks out at Mount Fuji, the Southern Alps and Yatsugatake. What the number 14,000 describes is the view and the distance, not the size of the rooms.

Three different square-metre figures at one property

Sometimes a single description uses the unit for several different things.

Nagomi Resort Run Yatsugatake in Yamanashi uses it three times: grounds of about 5,600sqm of forest holding six buildings, a private dog run of about 130sqm per building, and a large dog run of about 2,500sqm on site. Three figures, three different things.

Gran Foresta Villa Nikko in Tochigi lists rooms of 73sqm against a private dog run of over 1,000sqm at its largest. The dog run is fourteen times the room. This is not a 1,000sqm villa.

The most confusing is Dot Glamping Kitakaruizawa in Gunma. The private dog run is about 15 to 20sqm. The geodesic guest room is also about 15 to 20sqm. The same figure attached to the garden and to the room.

Ten square metres indoors, 145 in the garden

What bites in practice is whether the room area includes outdoor space. The properties that publish a breakdown show the proportion clearly.

CLASS THE FIRST Miyakojima in Okinawa gives its Pool Villa Suite as 150.20sqm total, 87.92 indoors, 64.29 outdoors. That is 43% outdoor. The Queens Villa Suite is 212.94sqm total, 133.87 indoors and 79.07 outdoors, so 37%.

HUMMER VILLAGE Amakusa in Kumamoto lists 72.04sqm, of which 51.34 is indoors and 20.70 is terrace: 29% outdoor. UMIBE Ise-Shima in Mie splits it three ways, 270sqm indoors, a 100sqm garden and a 30sqm balcony. Medallion Resort Ena in Gifu has 300sqm per building of which over 200sqm is the private dog run, which puts the building side under 100sqm.

At Villa El Cielo Ishigaki it inverts. LUNA is 165sqm with a 175sqm rooftop terrace: the outdoor space is the larger. SOL is 338sqm with a 223sqm outdoor terrace on the ground floor.

And Dog Glamping Shiga Takashima. Its Smart Cabin is about 10sqm indoors with a garden of about 145sqm. The garden is fourteen times the room.

Properties that publish a breakdown are being generous, not unhelpful. Where there is no breakdown, nothing in the listing tells you whether outdoor space is folded in.

We worked out the area per person, and threw it away

Two bedrooms, eight people divided capacity by bedrooms to get three people per room. The same calculation was run on area, and then abandoned.

Run it mechanically and the top of the table fills with properties quoting figures that include outdoor space, such as 340sqm of private area for a party of four. At the bottom sits GLAMPING BASE enCamp in Nagano, but only because the 13sqm figure describes one dome tent type and got divided by the whole site’s capacity. Neither end reflects anything real.

A division where neither the numerator nor the denominator is consistent produces a ranking and nothing else. Per house or per person argued for aligning units before comparing. Area is the same, except that when the units will not align, the right move is to stop before dividing.

Compare indoor area with indoor area. If you cannot, do not compare.

Converting to tatami brings the feel back

Square metres are hard to picture. One tatami mat is about 1.62sqm, and Japanese listings still think in mats.

• 13sqm ≈ 8 mats (one dome tent), about 140 sq ft
• 20sqm ≈ 12 mats (a studio-sized geodesic room), about 213 sq ft
• 73sqm ≈ 45 mats (one guest building), about 786 sq ft
• 100sqm ≈ 62 mats (the median room, roughly a three-bedroom flat), about 1,076 sq ft
• 340sqm ≈ 210 mats, about 3,660 sq ft
• 685sqm ≈ 423 mats (the median grounds), about 7,373 sq ft

Read the median room of 100sqm as 62 mats and the scale of renting a large house whole comes through. Read the median grounds of 685sqm as 423 mats and it becomes obvious that the figure says nothing about the building.

About these numbers

The denominator is 654 stays (published, duplicates excluded). 200 publish an area, so 458 publish none. That is not a sign they are small; many properties simply do not release floor plans or areas.

The classification was done mechanically from the words around each figure and is not an exact tally. 21 of the 309 could not be classified, and misreadings remain among those that could. The gap between 100sqm for rooms and 685sqm for grounds is larger than the classification error, so the direction holds. All medians are per occurrence, not per property: a property publishing areas for several room types contributes several times.

And very few properties say what the area includes. The handful quoted here publish a breakdown; most write only a number.

One line is enough

“Is that figure the indoor area?”

That alone reveals whether a terrace, a dog run or the grounds have been folded in. Divide the answer by 1.62 for tatami mats, or multiply by 10.8 for square feet, and you can compare it with your own home.

Area is a number properties put forward with confidence. Which is exactly why the largest available figure sometimes gets chosen. What was measured is usually written right next to it.

• Two bedrooms, eight people
• Per house or per person
• Is anyone in the next cabin?