I'd like to add request parameters to a {% url %}
tag, like ?office=foobar
.
Is this possible? I can't find anything on it.
No, because the GET parameters are not part of the URL.
Simply add them to the end:
<a href="{% url myview %}?office=foobar">
For Django 1.5+
<a href="{% url 'myview' %}?office=foobar">