37 RUE LA TOUR D'AUVERGNE 44200 NANTES · Pays de la Loire
66.5
/ 100
Investigate
Location only — excludes rent, fit-out, lease terms and the price of the business.
80% of the scoring weight was measurable here.
The site
Opened
2024-02-22
Activity
Traditional Gym / Fitness Club
Status
active · operating gym floor
Coordinates
47.20592, -1.55892
Within 3 km — gym floors filled, other sports hollow
21 gym floors, 23 other sports sites.
The eight nearest gyms are labelled. Rings at 500 m, 1 km, 2 km and 3 km; north is up.
Legal identity — INPI RNE, as at 4 March 2026
Registered name
BOLDER
Form
SAS
SIREN
985269216 · SIRET 98526921600026
Capital
€25,000
Registered
2024-03-06 · 1 establishment open
Président
Marion Anne Charlotte RAITH
Filed position — INPI keyed accounts
Years filed
never filed— a non-filer; the deal figures below are the only numbers there are
Confidentiality
—
Strengths & weaknesses — by weighted effect
▲Catchment84— 48,317 aged 18-64 + 91,574 workers = 139,892 over 12.57 km2 = 11,132/km2
▲Capture81— 1,370 residents + 3,087 workers, demand within 500 m against every competitor within 3 km
▲Income83— 26,880 EUR against 22,380 nationally, median of 23 IRIS within 2 km
▼Saturation34— 18 clubs / 70,714 residents = 25.45 per 100k against 11.01 nationally
▼Competition45— 0 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
Catchment84
weight 20%
500 m
10,483 people
83
2,497 aged 18-64 + 7,986 workers = 10,483 over 0.79 km2 = 13,348/km2
2 km
139,892 people
84
48,317 aged 18-64 + 91,574 workers = 139,892 over 12.57 km2 = 11,132/km2
Competition45
weight 15%
500 m
0.25 wt
86
0 genuine gym floors and 2 other sports sites within 500 m, weighted by substitutability and price tier
2 km
18.56 wt
18
18 genuine gym floors and 13 other sports sites within 2 km, weighted by substitutability and price tier
Capture81
weight 20%
500 m
4,457 people
91
1,370 residents + 3,087 workers, demand within 500 m against every competitor within 3 km
2 km
9,037 people
75
3,559 residents + 5,479 workers, demand within 2 km against every competitor within 3 km
Saturation34
weight 15%
500 m
not measured
—
catchment of 3,256 residents is below the 10,000 needed for a density measure to mean anything — one club would move it by 2.8 LQ
2 km
LQ 2.31
34
18 clubs / 70,714 residents = 25.45 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
Income83
weight 10%
500 m
0.97×
58
21,810 EUR against 22,380 nationally, median of 2 IRIS within 500 m
2 km
1.20×
100
26,880 EUR against 22,380 nationally, median of 23 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
0
2
0.25
500 m – 1 km
4
2
4.00
1 – 2 km
14
9
14.31
2 – 3 km
3
10
4.46
Within 3 km
21
23
23.0 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 21 gym floors and
23 other sports sites weigh 23.0, not
44.
Gym floors, 500 m – 1 km — 4
0.71BODYHIT
Bodyhit
0.79KEEP COOL
Keepcool
0.82BASIC-FIT
Basic-Fit
0.94THE NEW ME
The New Me
Gym floors, 1 – 2 km — 14
1.01BC CONCEPT
1.06PATRICK LAGISQUET
1.13BASIC FIT
Basic-Fit
1.17FITNESS PARK
Fitness Park
1.18ON AIR
On Air
1.19WELLNESS SPORT CLUB
Wellness Sport Club
1.32BASIC FIT
Basic-Fit
1.34BODYHIT
Bodyhit
1.63RITM
RITM
1.65ANPIJA
1.81NEKONESS
1.87FITNESS PARK
Fitness Park
1.91KEEPCOOL
Keepcool
1.91LE TEMPLE DU FITNESS
Gym floors, 2 – 3 km — 3
2.44BASIC FIT
Basic-Fit
2.44BASIC FIT
Basic-Fit
2.75LYMPH'ACTIV PAR MARIE
Other sports sites — 23 within 3 km, discounted by activity
0.1PIC ET PAROI LE BLOC
Climbing
0.44PISCINE LEO LAGRANGE
Swimming / Aquatic
0.74LYCEE LA COLINIERE
Other / Unclassified
0.95LYCEE GASPARD MONGE - LA CHAUVINIERE
Other / Unclassified
1.06INSTITUT NANTAIS DE CULTURE PHYSIQUE
Other / Unclassified
1.25CROSSFIT (LICENSED BOX)
CrossFit / Functional Training
1.28AQUA NANTES
Swimming / Aquatic
1.58CLUB ACCUEIL CORPO TENNIS UNIR ET SERVIR (CACTUS)
Tennis
1.93LYCEE MANDELA
Other / Unclassified
1.94GYMNASE VICTOR HUGO
Multi-sport Complex
2.0GYMNASE JEAN YVES LEROY ( ASBG)
Multi-sport Complex
2.01Caserne Gouzé
Other / Unclassified
2.11LYCEE COLLEGE LA PERVERIE
Other / Unclassified
2.22PISCINE MUNICIPALE DE LA PETITE AMAZONIE
Swimming / Aquatic
2.75CASERNE DE GENDARMERIE
Other / Unclassified
2.77LYCEE NOTRE DAME
Other / Unclassified
2.79STADE DE PROCE- CLOVIS CONSTANT
Multi-sport Complex
2.82CROSSFIT WM
CrossFit / Functional Training
2.83LYCEE JEAN PERRIN
Other / Unclassified
2.87LYCEE SAINT FELIX
Other / Unclassified
2.96STADE PASCAL LAPORTE
Multi-sport Complex
Competition since opening — gyms within 1 km, by the year they opened
4when it opened, 2024-02-22→8today, 4 arrived since
2024+1
2025+2
2026+1
4 rival(s) within 1 km when this club opened, 8 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). 6 nearby site(s) have no usable opening date and are not in either count.
Access — straight-line distance, GTFS
Nearest tram
Aimé Delrue — 747 m
Nearest bus
Gare de l'État — 161 m
Counted footfall
Rezé Pont Rousseau — 1579 m,
206,368 travellers a year
(SNCF)
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
3,256
4,146
32.9
2,497
77%
1.0 km
15,706
4,999
34.4
11,351
72%
2.0 km
70,714
5,627
36.4
48,317
68%
3.0 km
162,065
5,732
36.9
105,741
65%
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.
Age profile — residents within 2 km
0–33,0704%
4–51,3002%
6–103,0544%
11–174,1476%
18–246,6629%
25–3922,48432%
40–5412,75718%
55–646,4149%
65–797,60711%
80+3,2065%
Working-age brackets in blue. 70,701 residents within 2 km.
Household income — INSEE Filosofi 2021
Median
€20,390 a year, per consumption unit
Poorest tenth
below €9,950
Richest tenth
above €39,330
Spread
×4.0 between them
· Gini 0.305
Poverty rate
23.0% of households below 60% of the national median
Published at iris level (IRIS 441090602).
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.
The establishment — INSEE Sirene
Legal name
BOLDER
SIREN
985269216 the company
SIRET
98526921600026 this establishment
Company founded
2024-02-22
This site opened
2024-02-22
Activity code
93.13Z
Head office
no — a secondary establishment
Employees
Unknown / non-employer
Sources
sirene
Filed accounts — INPI, the keyed annual accounts
Revenue
not filed
Net result
not filed
No keyed accounts in INPI's feed for this company. Absence means unfiled, not zero — most
small French companies file late or not at all.
Legal filings — BODACC, the official French business gazette
2026-08-07
Procédures collectives (Avis initial)
2026-03-18
Modifications diverses (Avis initial)
2026-02-24
Dépôts des comptes (Avis initial)
2024-08-30
Modifications diverses (Avis initial)
2024-03-15
Créations (Avis initial)
Newest first. Accounts filed on time are the ordinary case; an insolvency, a receivership or a
pledge over the business would appear here too, and none does unless it is listed above.
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, 05:27 UTC · siret:98526921600026 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.