Royal Mail’s first postbox accepting medium-sized, pre-labelled parcels is now live in Belfast, taking items up to 24cm high, 48cm long and 43cm wide. Royal Mail says it will install 600 of the new boxes over the next six months.
At a glance
- What changes
- Medium-sized parcels accepted through a postbox
- Where
- Outside 25 York Street, Belfast
- Who it affects
- People sending or returning parcels in Belfast
- What to do
- Measure your parcel and attach a postage or return label
On this page
Where to find the Belfast postbox
The first new parcel postbox stands outside 25 York Street, at Ulster University’s Birley Building. Royal Mail identifies this as the Belfast location.
The box accepts parcels for sending and returns, as well as letters. To use it, the parcel needs its postage label attached before posting.
Check your packed parcel’s dimensions
Measure the outside of your packed parcel before taking it to the box. Royal Mail gives a maximum for each dimension, so check all of them against these limits:
- Height: up to 24cm.
- Length: up to 48cm.
- Width: up to 43cm.
Royal Mail describes these medium-sized parcels as the largest items it has accepted through a postbox.
Prepare a postage or return label
You can use a supplied return label or buy a postage label online through Royal Mail’s Click & Drop service (ChannelX).
For a parcel being sent, buy the postage label and attach it to the parcel. For a return, attach the supplied return label before putting the parcel in the postbox.
How the new boxes fit the network
The new boxes add to 1,400 existing parcel postboxes and 3,500 upgraded postboxes of the future that accept shoebox-sized parcels (Post & Parcel).
Questions
Where is the new Royal Mail parcel postbox in Belfast?
It is outside 25 York Street, at Ulster University’s Birley Building.
What size parcel fits in the new Belfast postbox?
It accepts parcels up to 24cm high, 48cm long and 43cm wide. Your parcel must be pre-labelled.
Can I put a return in the Belfast parcel postbox?
Yes. Attach the supplied return label and check that the packed parcel fits within the size limits.
Sources
- Royal Mail (primary source): Royal Mail launches parcel postboxes for medium-sized parcels, read 29 April 2026
- Royal Mail (primary source): Royal Mail unveils first postbox in Northern Ireland bearing the cypher of King Charles III, read 29 April 2026
- ChannelX: Royal Mail launches parcel postboxes for medium-sized parcels, read 29 April 2026
- Post & Parcel: Royal Mail introduces solar powered parcel postboxes that accept medium-sized parcels, read 29 April 2026
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