U.K. and Ireland - TWOV for Indonesian Passport Holder?

I am an Indonesian citizen travelling with an Indonesian passport. Does anyone know if I will need a transit visa for Heathrow (LHR)?

My itinerary is YYZ-LHR-BRU. I also have a Permanent Residence in Canada.

The wording on the UK Home Office website is a bit... confusing

http://visacenter.com/index.php?login=45339&utm_campaign=delta&utm_medium=visaandpsp&utm_source=vc&utm_content=visit

Simple answer is no, as long as you have a valid Canadian PR card and stick to that itinerary.

Indonesian passport holders do not require a visa to transit the UK, irrespective of whether they are permanent residents of Canada or anywhere else.

KVS says:

[KVS Availability Tool 7.0.2/Diamond - TIMATIC: Visa/Entry Requirements] (http://www.KVSTool.com/)
National Indonesia (ID) /Residence Canada (CA)
Embarkation Canada (CA) /Transit United Kingdom (GB)
Destination Belgium (BE)
ALSO CHECK DESTINATION INFORMATION BELOW

[Visa Information - Transit] United Kingdom (GB)

[Information For Normal Passports]
Visa required, except for Holders of an Olympic Identity and
Accreditation Card (OIAC) which contains a visa waiver number
(800xxxxxx with x representing an alphanumeric digit), issued
to an Olympic Family member, provided having already been
granted entry into the United Kingdom between 30 March 2012
and 12 August 2012.
Visa required, except for Holders of a Paralympic Identity and
Accreditation Card (PIAC) which contains a visa waiver number
(800xxxxxx with x representing an alphanumeric digit), issued
to a Paralympic Family member.
TWOV (Transit Without Visa):
Visa required, except for Passengers who may be granted
permission by the Immigration authorities to enter the United
Kingdom, for a stay not exceeding 24 hours.The following conditions must be complied with:
- passengers hold confirmed reservations for an onward flight
within 24 hours; and
- continue to a third country; and
- have no purpose in entering the United Kingdom other than to
pass through in transit; and
- hold all documents required for the next destination..
Additional Information:
- Full details on the OIAC: [[TIDFT/GB/VI/AI/ID47264]]
- Full details on the PIAC: [[TIDFT/GB/VI/AI/ID47265]]
- There is no passport control on traffic between "Great
Britain & Northern Ireland" and "Ireland (Rep. of)".
[[TIDFT/GB/VI/AI/ID42984]]



[Health Information] United Kingdom (GB)

No vaccinations are required to enter the United Kingdom from
any country.

[Visa Information - Destination] Belgium (BE)

[Information For Normal Passports]
Passport required.
- Passport and/or passport replacing documents must be valid
on arrival.

Visa required.

Minors:
- [[TIDFT/BE/PA/MI/ID1150]]

Additional Information:
- Valid visas in full, invalidated travel documents are
accepted provided accompanied by a new travel document.
- Visitors are required to hold proof of sufficient funds to
cover their stay and documents required for their next
destination .
- This country is a Schengen Member State [[TIRULES/R33]]
Warning:
- Visitors not holding return/onward tickets could be refused
entry .



[Health Information] Belgium (BE)

No vaccinations are required to enter Belgium from any
country.

CHECK [[TINEWS/N1]] - LONDON 2012 OLYMPIC and PARALYMPIC GAMES
- REMINDER OF CHANGES TO ACCEPTANCE OF OIAC FROM 13 AUGUST

15 Aug 2012 / 12:37 [UTC]


You would of course need a visa for Belgium.

According to the Home Office (http://www.ukba.homeoffice.gov.uk/visas-immigration/do-you-need-a-visa/) an Indonesian citizen generally needs a visa to transit the UK (unless you will arrive in the UK by air, and leave the UK by air less than 24 hours later)