K. STUDIO

Strengths & weaknesses — by weighted effect

▲ Saturation 100 — 5 clubs / 57,756 residents = 8.66 per 100k against 11.01 nationally

▲ Income 100 — 35,320 EUR against 22,380 nationally, median of 5 IRIS within 500 m

▲ Capture 72 — 8,097 residents + 489 workers, demand within 2 km against every competitor within 3 km

▼ Competition 32 — 3 genuine gym floors and 2 other sports sites within 500 m, weighted by substitutability and price tier

How the score was reached — seven parameters, five measured separately at 500 m and 2 km

Parameter	Where	Measured	Score	How it was arrived at
Catchment 64 weight 20%	500 m	5,996 people	72	5,974 aged 18-64 + 22 workers = 5,996 over 0.79 km2 = 7,634/km2
Catchment 64 weight 20%	2 km	39,335 people	59	34,327 aged 18-64 + 5,008 workers = 39,335 over 12.57 km2 = 3,130/km2
Competition 32 weight 15%	500 m	3.40 wt	9	3 genuine gym floors and 2 other sports sites within 500 m, weighted by substitutability and price tier
Competition 32 weight 15%	2 km	5.80 wt	47	5 genuine gym floors and 4 other sports sites within 2 km, weighted by substitutability and price tier
Capture 72 weight 20%	500 m	2,259 people	70	2,247 residents + 11 workers, demand within 500 m against every competitor within 3 km
Capture 72 weight 20%	2 km	8,587 people	73	8,097 residents + 489 workers, demand within 2 km against every competitor within 3 km
Saturation 100 weight 15%	500 m	not measured	—	catchment of 9,677 residents is below the 10,000 needed for a density measure to mean anything — one club would move it by 0.9 LQ
Saturation 100 weight 15%	2 km	LQ 0.79	100	5 clubs / 57,756 residents = 8.66 per 100k against 11.01 nationally
Fit — weight 10%	unit	not measured	—	no floor area recorded for this unit
Rental — weight 10%	unit	not measured	—	no rent or no floor area recorded
Income 100 weight 10%	500 m	1.58×	100	35,320 EUR against 22,380 nationally, median of 5 IRIS within 500 m
Income 100 weight 10%	2 km	1.49×	100	33,255 EUR against 22,380 nationally, median of 26 IRIS within 2 km

Each parameter scores 0–100 on a stated line between named breakpoints, then the seven combine on their weights — renormalised over whatever was measurable, so a missing parameter dilutes nothing rather than counting as zero.

Competitive field — every active gym and other sports site within 3 km

Band	Gym floors	Other sports	MCI weight
within 500 m	3	2	3.40
500 m – 1 km	1	1	1.10
1 – 2 km	1	1	1.30
2 – 3 km	0	1	0.30
Within 3 km	5	5	6.1 total

Each site is discounted by how substitutable its activity is for a gym and how far its price tier sits from a mid-market club — so 5 gym floors and 5 other sports sites weigh 6.1, not 10.

Competition since opening — gyms within 1 km, by the year they opened

9 when it opened, 2026-09-04 → 9 today, 0 arrived since

9 rival(s) within 1 km when this club opened, 9 now. The forecast uses the founding count: it measured better than averaging the field over the club's life (LOOCV 0.091 vs 0.106). 2 nearby site(s) have no usable opening date and are not in either count.

Access — straight-line distance, GTFS

Nearest rail: Saint-Germain-en-Laye — 263 m
Nearest bus: Rue de la Salle — 21 m
Counted footfall: Saint-Germain-en-Laye T13 — 205 m, 5,662,204 validations a year (RATP)

Straight-line, not travel time: no free routing service covers France at this volume, so a stop 300 m away across a railway line reads the same as one 300 m along the street.

Catchment — INSEE 200 m population grid, Filosofi 2021

Ring	Residents	Per km²	Median age	Adults 18–64	Share of residents
0.5 km	9,677	12,321	39.7	5,974	62%
1.0 km	22,684	7,221	41.9	13,377	59%
2.0 km	57,756	4,596	40.6	34,327	59%
3.0 km	94,286	3,335	40.8	55,603	59%

Adults 18–64 is the span members come from. A median age alone does not separate a student quarter from a family suburb, and those are not the same market.

Household income — INSEE Filosofi 2021

Median: €33,130 a year, per consumption unit
Poorest tenth: below €14,790
Richest tenth: above €66,370
Spread: ×4.5 between them · Gini 0.332
Poverty rate: 9.0% of households below 60% of the national median

Published at iris level (IRIS 785510115). An IRIS is a neighbourhood of roughly 2,000 people; a commune can be a whole town. The level travels with the figure, so a town's median is never read as this street's.

What this is. The Location Score is model output, computed from open data; it is not a measured fact and not a valuation. Registry facts — name, SIRET, NAF, address, opening date, officers, filed revenue — come from INSEE Sirene and the Ministère des Sports facility census. Population, age profile and income are INSEE (Filosofi 2021, 200 m grid and IRIS). Competitors are the active, genuinely-operating gym floors in this database. Distances are straight-line, not travel time.
Location Score model 3.1.0, computed 2026-10-17.
Generated 18 October 2026, 13:08 UTC · siret:10974331000012
Sources : INSEE, Sirene (www.insee.fr), données mises à jour le 2026-10-18 · INPI, Registre national des entreprises (stock du 2026-03-04, API au 2026-10-18) · Ministère des Sports, Data ES (2026-10-17) · INSEE, Filosofi 2021 (carreaux 200 m, IRIS) et BPE 2025 · IGN, Contours IRIS 2026 · OpenStreetMap contributors (ODbL). Licence Ouverte / Etalab 2.0 sauf mention contraire.

The site

Within 3 km — gym floors filled, other sports hollow

Strengths & weaknesses — by weighted effect

How the score was reached — seven parameters, five measured separately at 500 m and 2 km

Competitive field — every active gym and other sports site within 3 km

Gym floors, within 500 m — 3

Gym floors, 500 m – 1 km — 1

Gym floors, 1 – 2 km — 1

Other sports sites — 5 within 3 km, discounted by activity

Competition since opening — gyms within 1 km, by the year they opened

Access — straight-line distance, GTFS

Catchment — INSEE 200 m population grid, Filosofi 2021

Age profile — residents within 2 km

Household income — INSEE Filosofi 2021

The establishment — INSEE Sirene

Officers — company representatives on file

Filed accounts — INPI, the keyed annual accounts