Short-term rentals · Côtes-d'Armor (22)
Short-term rentals in Saint-Cast-le-Guildo: data, rules and tools for hosts and property managers
Saint-Cast-le-Guildo at a glance: 3,681 second homes (66% of dwellings, INSEE 2022), a tourist tax of 3% for unclassified furnished lets and a “tourist and tight housing market” classification. This page brings together the public data useful for short-term letting, the applicable rules and a digital welcome book demo with real addresses around the town centre.
second homes
3,681
of dwellings are second homes
66%
tourist tax, unclassified let
3%
nights booked online in the département in 2025
2,782,513
Market
The short-term rental market in Saint-Cast-le-Guildo
Housing stock
3,681 second and occasional homes, i.e. 66% of 5,575 dwellings; 108 vacant dwellings.
Source: INSEE, population census 2022. An indicator of tourist pressure, not a count of holiday lets.
Commercial tourist accommodation
- 2 hotels (32 rooms)
- 11 campsites (1,595 pitches)
Source: INSEE, tourist accommodation capacity by municipality 2026.
Nights booked on platforms
2,782,513 nights booked in 2025 through online platforms in the département (Côtes-d'Armor). +9.9% compared with 2024. 26.2% of these nights were booked by guests living abroad.
Source: Eurostat, experimental statistics on short-stay accommodation booked via the major online platforms (all types of accommodation offered, not only holiday homes).
Compare with long-term letting
Average advertised rent including charges: €12.5 per m² for a flat, €8.6 per m² for a house.
Source: rent map 2025, ANIL and French Ministry of Housing (unfurnished rental listings).
Property managers and hosts listed
The observatory does not publish a page for Saint-Cast-le-Guildo: fewer than 5 managers and hosts are listed there (statistical confidentiality).
Observatory: Côtes-d'ArmorRegulation
Letting a holiday home in Saint-Cast-le-Guildo: the rules
Tourist tax
Unclassified furnished let: 3% of the nightly price per person (decision in force in 2026).
Classified furnished let: from €0.75 (1 star) to €2.00 (5 stars) per person per night.
Plus the additional département tax of 10%.
The tax is collected by the inter-municipal authority.
Source: DGFiP, tourist tax decisions (DELTA database).
Housing zoning
Saint-Cast-le-Guildo is classified as a tourist and tight housing market: the vacant housing tax applies and the municipality may increase council tax on second homes.
Zone C of the ABC zoning (housing market pressure).
Increase in council tax on second homes voted: 45% (2026).
Sources: French Ministry of Housing (TLV zoning decree, ABC zoning order), DGFiP (second-home tax increase).
Change of use
Saint-Cast-le-Guildo is not automatically subject to change-of-use authorisation, but the municipality may have introduced it by local decision: check with the town hall.
Verified local rules
The observatory has not yet verified any local rules for Saint-Cast-le-Guildo. Check the town hall’s decisions.
National rules (France)
- Every furnished tourist let must be declared to the town hall. Once the national online registration service goes live (planned for Q4 2026), registration becomes mandatory in every municipality and the number must appear on every listing.
- Main residence: letting is capped at 120 days a year, which the municipality may lower to 90 days. A single guest may not stay more than 90 consecutive days a year.
- Energy performance: in mainland France the energy rating (DPE) must be between A and E; from 2034, between A and D (A to E overseas).
- Tax (micro-BIC, 2025 income): 30% allowance up to €15,000 of revenue for an unclassified let, 50% up to €77,700 for a classified let (€83,600 for 2026 income).
- Co-ownership: owners must inform the building manager (syndic) of the activity; new co-ownership rules must state explicitly whether furnished tourist lets are allowed or prohibited.
General information updated on 1 October 2026, not legal or tax advice. Local rules change: your municipality’s decision prevails. Official guidance on service-public.gouv.fr (in French)
Seasonality
Seasonality: when guests come to Saint-Cast-le-Guildo
% · share of the year’s nights
Busiest months: July and August. Quietest month: January. Average stay in the region: 3.8 nights.
Share of each month in nights booked via online platforms, Bretagne region (average of the latest full years, up to 2025). Source: Eurostat, monthly nights booked via online platforms by region (NUTS 2), excluding 2020 and 2021.
Property management
Property management in Saint-Cast-le-Guildo: delegate or self-manage
What to compare
- The exact scope: listings and pricing, check-in or self check-in, cleaning, linen, small repairs.
- The commission and what it covers (cleaning and linen charged separately or not).
- The company: registration (SIREN) and professional liability insurance.
- Handling of the tourist tax and the registration number on your listings.
- The tools given to guests: welcome book, access codes, answers to frequent questions.
Are you a property manager in Saint-Cast-le-Guildo? Majordia brings together your welcome books, self check-in and add-on sales (cleaning, late checkout…) for all your properties.
Digital welcome book
A digital welcome book for a property in Saint-Cast-le-Guildo
Sample answers for central Saint-Cast-le-Guildo
- Parking: Place de l'Hôtel de Ville, 80 m · 1 min walk.
- Nearest pharmacy: Pharmacie des Mielles, 930 m · 12 min walk.
- Groceries: Carrefour City, 910 m · 11 min walk.
- Market: Marché des Mielles.
- Tourist tax to remind guests of: 3% of the nightly price per person (unclassified let).
Places: © OpenStreetMap contributors (ODbL).
Demo
Demo flat – Saint-Cast-le-Guildo centre
Demo — fictitious property
Closest to the demo flat
- Directions
Pharmacie des Mielles
Pharmacy
930 m · 12 min walk
Opening hours : Mon-Fri 09:00-12:15, 14:15-19:00 · Sat 09:15-12:15 · Jul-Aug Mon-Sat 09:00-12:45, 14:15-19:30 · Jul-Aug Sun 10:00-13:00
- Directions
Carrefour City
Grocery, supermarket
910 m · 11 min walk
Opening hours : Mon-Sat 07:00-21:00 · Sun 09:00-13:00
- Directions
Place de l'Hôtel de Ville
Car park · free
80 m · 1 min walk
- Directions
Cook and Choux
Bakery
920 m · 12 min walk
Opening hours : Mon-Sat 08:00-19:30 · Sun 08:00-14:00
- Directions
Le Pot
Restaurant
890 m · 11 min walk
Places: © OpenStreetMap contributors (ODbL).
- Stop
- Car park
- Bakery
- Grocery, supermarket
- Pharmacy
- Restaurant
- Market
- Sight
- Park, garden
- Tourist office
Approximate position of places around the demo flat (centre).
Open the map on OpenStreetMapFAQ
Frequently asked questions
Do I need a registration number to let a holiday home in Saint-Cast-le-Guildo?
Every holiday let must be declared to the town hall. Once the national online registration service is live (planned for Q4 2026), registration becomes mandatory in every municipality, including Saint-Cast-le-Guildo: the number must appear on every listing. The municipality may have added its own rules: its decision prevails.
How much is the tourist tax in Saint-Cast-le-Guildo?
For an unclassified furnished let, the tourist tax in Saint-Cast-le-Guildo is 3% of the nightly price per person (decision in force in 2026). The tax is collected by the inter-municipal authority.
Is Saint-Cast-le-Guildo a tight housing market area?
Yes, Saint-Cast-le-Guildo is classified as “tourist and tight housing market” classification under the zoning decree in force.
Do I need a change-of-use authorisation in Saint-Cast-le-Guildo?
Not by law: Saint-Cast-le-Guildo is not automatically covered by article L631-7, but the municipality may have introduced it. Check with the town hall.
When is the high season for short-term rentals in Saint-Cast-le-Guildo?
In the Bretagne region, nights booked online peak in July and August (Eurostat). That is when demand is highest in Saint-Cast-le-Guildo.
What should a welcome book include in Saint-Cast-le-Guildo?
The practical information guests ask for in Saint-Cast-le-Guildo: car park (Place de l'Hôtel de Ville, 80 m), pharmacy (Pharmacie des Mielles, 930 m), grocery, supermarket (Carrefour City, 910 m), access codes, Wi-Fi, checkout instructions and emergency numbers.
Nearby
Other cities around Saint-Cast-le-Guildo
Method
Sources and method
Demo places: © OpenStreetMap contributors (ODbL licence); walking distances computed on the OpenStreetMap network (OSRM, FOSSGIS).
Public aggregates only, with the same statistical confidentiality thresholds as the Majordia observatory. No personal data, no real listing or host.
No platform listing data is used on this page.
Data updated on 9 October 2026.
A digital welcome book for each of your properties
Access codes, Wi-Fi, neighbourhood addresses and an assistant that answers guests in their language: Majordia is set up in minutes.