A rental listing does not need more enquiries. It needs fewer, better ones — and the difference is almost entirely what you put in the first three lines.
State the three filters immediately
Rent, deposit, and what is included. Every tenant is searching within a budget, and a listing that hides the number is skipped rather than clicked. Say whether bills, internet and maintenance are in or out — "plus bills" and "all inclusive" are different products at the same headline price.
Then availability date, minimum term, and whether the deposit is one month or more. A viewing arranged before these are agreed is a viewing you will repeat.
Describe the constraints, not just the features
Floor and whether there is a lift. Parking, or honestly the absence of it. Who else lives there, and roughly what the household is like. Rules you actually intend to enforce — pets, smoking, guests, cooking. Every one of these will be discovered anyway; the only question is whether it is discovered before or after somebody takes an afternoon off work.
Photograph every room, including the one you are embarrassed by
Daylight, from the doorway, with the room tidy but not staged out of recognition. Include the bathroom and the kitchen — a listing without them reads as hiding them. Include the view from the window, because a tenant is renting the outlook as much as the floor area.
Write the advertisement for the tenant you want
A listing that says "professional, quiet, no drama" is describing a preference. A listing that says "the other two work early shifts, so the flat is quiet before ten" is describing a fact somebody can match themselves against. The second one filters better and offends nobody, because it is not a judgement about the reader.
The same goes for the room itself. Give the floor area or, failing that, whether a double bed fits with space to walk around it. "Spacious" is the single least informative word in rental advertising and every listing uses it.
Know what you are allowed to say
Housing is the category where advertising law bites hardest. In most jurisdictions you may not filter on nationality, religion, ethnicity, family status or disability, and wording that reads as a preference can be unlawful even when it was not meant that way. Describe the property and the practical constraints; do not describe the person.
Have the tenancy terms ready before the first viewing
Written agreement, deposit handling as your law requires, inventory with photographs, meter readings on the day. Landlords who improvise this are the ones who end up in disputes about a mark on a wall eleven months later, because there is no record of what the wall looked like.
Viewings
Group them into one afternoon rather than spreading them across a week. Have somebody else in the property. Do not leave people alone in rooms. Keep documents out of sight.
You do not need to publish your phone number to arrange any of this. Messages here reach you without it, and numbers are exchanged only when both sides confirm — which for a rental is usually the point at which you have decided on each other anyway.
List it in Housing › Rooms / Shared or Apts / Housing, or start a new listing.