Heathrow: Flying out of one terminal and into another - where to park?

[Animagus]

I’m not familiar with Heathrow at all so not sure how close the different car parks are. I’ve looked at the maps but thought I’d ask the experts 😀.
We are due to leave from T5 but return to T3 (at least, we hope so) so where would you park?

[lmartin]

Personally, T3. Closer to the car on your return after an overnight flight. You won't mind the T3>T5 journey as much if it's part of the excitement of the way out.

[Peko]

Assuming all the car parks are open, T5 long stay is adjacent to T2/3 business parking. Park in T5 long stay (close to the end that adjoins the T2/3 business parking if you can). On return, just take the shuttle bus from T3 to T2/3 business parking (nobody will question you), and walk across to T5 long stay to pick up your car. This avoids having to do a terminal transfer.

Alternatively, some of the private parking services do offer a service to collect / drop off car at different terminals, but I have never used these.

[baggies]

Park at T3, get the terminal train to T5, it does add time to your arrival but faster departure when you get back.

I would use a meet and greet and drop the car off T5 and collect at T3. I hate having to wait for a bus to get to my car after a long flight.
The last time I did it, many years ago, I came back to a flat battery, in fairness the car park guys helped us and it wasn't a massive delay but since that time I budget the extra for meet and greet.