What should we do about cat visitor?

[BigApple11]

We have a visitor, who comes to see us everyday. He's been coming for the past 3-4 months!
He comes daily, he noses around, he seems to love our children and the attention we give him. He likes to curl up and sleep in our house for hours at a time, he comes and goes as he likes.
We don't feed him, he wears no collar, but we have worked out where he lives and his name from talking to neighbours. He actually lives one street away.
What, if anything, should we do? He is not thin and is obviously fed. My children love him and want to keep him, but he's obviously someone else's pet. Do we go and speak to the owners? If so what do we say?! Here he is :

what, the OP should keep her doors shut on nice days?

Christ, the lives some MNers lead.

I have no idea what my cats get up to in the day and I don't care. If I did, I'd get a dog.

I posted in the Litter Tray because I thought I might get some sensible advice, it's not AIBU!!
AIBU to leave my doors open in the summer?
My garden is south facing and my house gets rather hot, but I don't want any friendly neighbourhood cats visiting

what, the OP should keep her doors shut on nice days?

Of course not but she shouldn't equally encourage a cat to stay in her home. Yes she and her children may enjoy its company but the cat will then try entering other houses and they may not want it visiting.

The best thing to do is to shoo the cat out if they come in and continue to do so until the cat knows it shouldn't be entering other houses.

Thanks to those who have been helpful. @CatMotherQueen I don't know how to PM from the app. We have a KT postcode

Chill out people, this is what cats do.

One of our cats disappears for days hours at a time. Once I heard the woman out the back calling him by a different name

OP, as long as you aren't feeding him you are doing nothing wrong. Cats go where they are comfortable so he obviously likes it at yours.

if other neighbours don't want the cat in, they can shoo it out.

Thank you, we're not KT, so not him

Of course the OP is doing nothing wrong. However it's worth talking to the owners as maybe they no longer want the cat for whatever reason or it's no longer happy to go in their house because of for example a new baby. In which case the OP can formally adopt it. It would just be helpful to everyone to know the situation.

My cat often goes next door for cuddles and treats. I like that he’s welcome there - he certainly knows which neighbours don’t like him! And when we go on holiday he has some company (the cat carer feeds him twice a day but he will go and see NDN’s).
He smells of my neighbour’s perfume sometimes which makes me feel a bit like he’s cheating on me!

The best thing to do is to shoo the cat out if they come in and continue to do so until the cat knows it shouldn't be entering other houses.
And when it doesn't grasp that? Like the cat visitor we had in our first house together. It would come in every single day during the summer whenever any window was open, even upstairs it would jump in. Every single time we would put it out but it would just jump straight back in. this went on for about 2 months. We would shut the windows / door (middle of summer, so why the bloody hell should we?) but it would sit and scream to be in for 20/30 mins. It was horrible. It would wander off but as soon as a window was cracked he would be straight back in to sleep on the dining room chairs. Cat sometimes had a collar (no number / address so useless) so no idea where it lived. I got fed up of spending my days chasing this sodding cat in and out I gave up and just let it come in and leave as it wanted.

The best thing to do is to shoo the cat out if they come in and continue to do so until the cat knows it shouldn't be entering other houses.

No, the best thing to do would be to speak to the owners to find out what the situation is.

And when it doesn't grasp that? Like the cat visitor we had in our first house together.

Well granted some of the cheeky fuckers wont grasp the concept but others will. We solved the problem by getting cat masters of our own to serve and it sounds like that would be a great solution to the OP's problem especially if she rehomed a rescue in need of a new slave.

Best course of action imo is to be clear with your kids that he is not your cat and not their pet and he's just being neighbourly and popping in!

All those people giving out about "allowing a strange cat in your house", would you relax. What harm is it doing anyone. The cat is happy, the OP is happy. The cats owners are clearly happy or they would change their behaviour and prevent him from getting out.

Speak to the owners, let them know he visits and then just enjoy the company without the responsibility.

Ah my cat believes he owns the street.

He could be an actor as he does an excellent imitation of a poor hard done by feline who is never fed. He could also be an excellent burglar as he is forever breaking into other houses - next door particularly which amuses me (they related to us so thats part of the amusement!)

It wouldnt bother me but i too would too see if you can locate the owners and see what they say.

Let his owners know where to find him.
Do not feed him.
Enjoy the cat share.