it will definitely pay less, possibly by about half at the entry level. longer term it's impossible to say, totally depends on your own talents and career path. I can testify that making a satisfying living at a middle class level as an architect is possible though.

Whether that trade off is worth it totally depends on your own circumstances and goals for your life. you can have a comfortable life as an architect, but it's a riskier and more difficult path than most engineering careers.

*** LONG POST NOTICE - Wall of Text | If you wish to rapidly move past my post, press the Page Down key a number of times and you'll rapidly scroll past the take... or hold down the key until the text scrolls up past the screen --- as there may be subsequent posts ***

In addition, to completing the B.Eng degree, you can pursue a Master's degree in Architecture or possibly a second bachelor's degree in architecture. Engineering will actually be a valuable skill to have in architecture. Even if you don't pursue an architectural license, the engineering education will be valuable for doing design work for projects that don't require an architect or engineer's stamp but if you pursue an engineering license.... and take a PE exam in Architectural Engineering, Structural, Mechanical, Electrical (Power), and Plumbing engineering disciplines, you may be able to effectively practice architecture due to all those engineering disciplines and the overlap it has with architecture that all that's left is basically space planning & means of egress planning, which if you take architectural courses and have some work experience working under an architecture, you would be phenomenal and can be just as competent if not more so... just you can't use the title Architect or call the services 'architectural services'. 

All those disciplines of engineering would not be a small feat to get experience and pass all those PE exams in the various disciplines that would be associated with the designing of buildings... but also you would not be limited to buildings. You can then pursue non-building structures as well. 

There are different cultures between architecture and engineering but you would be quite valuable and you would have competency in the various engineering that exceeds that of most architects have in any particular discipline in engineering. It would be a long road to accomplish and you can potentially lead teams of engineers in any specific discipline and also be the design lead for buildings and non-building structures. You would just have to follow the nuances of state laws and rules and the well... the licensing board politics which may be a little bit like kids fighting over turfs. It's one thing if an engineer of a singular discipline effectively being the role of an architect. 

A highly skilled multi-disciplined engineer with some architectural education and a little experience working for an architect is not only relatively rare but also is incredible. There are easier roads but I present a tougher road that can be potentially rewarding in many ways and also tend to be more valued. 

This is not meant to belittle architects or their value in any way. One needs not to be an architect to be creative but I would pepper in classes that would help you embrace and grow your creativity including some architecture courses (if you do in fact have a strong enduring passion to design buildings), while you also develop the science/engineering prowess to accomplish creative goals. They need not be exclusive even though there are two common cultures and priorities between engineering and architecture (in general) that can at times seems to be contradictory to each other. Neither is right or wrong. There is often a need to balance the priorities to find effective solutions that are not merely cheaper but more value even if it isn't the cheapest solution because you can have beauty with engineering. Take into consideration the beauty of the engineering work of Conde McCullough, Santiago Calatrava, and some others. 

There are many paths and options that you can pursue. I am simply throwing an idea out there to ponder about and whether you want to put the level of effort in. You could very well pursue a completely different path that is neither being an "Engineer" (structural, civil, mechanical, electrical, plumbing, ect.) or an Architect. Point is, don't make any rash decision to change majors or anything like that. Consider various options with consideration of what your life goals are. Don't do what I suggested on the account that I suggested it or any special credence. There are options outside of architecture or some engineering disciplines like the IT / Computer / Software (applications, utilities, UI/UX, video games, etc.) field. HAVING SAID ALL THE ABOVE, it's not a good idea to just take the advice of some stranger on the internet for major life goals and associated decisions. Take time to evaluate the options you have including those that you might not be aware of or have been thinking about. Point... take your time to discern. 

I wish you the best outcomes in whatever direction you pursue regarding your education and career.

*** This post is likely to be deleted by some moderator who doesn't like me because some other person here, flags it and I have noticed that there is someone deliberately removing my posts on purpose and intentionally which has nothing to do with you. ***

I wasn't sure until I was nearly finished my third year of a BS in structural engineering that I definitely wouldn't be pursuing engineering after graduation. I dropped out, moved across the country and started a new life as a carpenter in Seattle. By the end of that summer, however, I decided to go back and finish the degree.

After graduation I continued to work as a carpenter, and gradually found my way to design after ten years or so. Even with the challenges of a career in architecture, if I could start over I would probably go straight to architecture school. But it took me a long time in the field to realize that; if you're not sure, I'd recommend finishing your degree, try to find a job in an architecture-related field, and consider going to graduate school if you decide to pursue architecture. 

PE then.  Avoid architecture.  You have been officially warned off.

plenty of engineers out there that adore buildings and get to draw every single day...and plenty of architects are on the phone all day or stare at spreadsheets without ever drawing a single thing :)

Join architecture. Make mad $$$, design magazine cover museums, have your words quoted by your fans, fill your room with trophies and awards, work little hours with the maximum creative satisfaction, leave all the tedious management and technical works to consultants, junior staffs and managers.   

Doesn't it sound wonderful? Yes it does, but only if you are the cream of the creams. The chosen one. The big name. Otherwise, engineering is a much safer bet for an ordinary career.

My advice would be; don't give up on your engineering degree so easily and while in undergrad take electives outside engineering in art, art history, even politics, or philosophy - whatever you can. Be curious about the built environment - why humans organize cities and social hierarchies the way they do, wonder about the dynamics that shape our lives. Approach architecture from the outside, as an outsider - trust me if you do end up in architecture it will be much more helpful in the longer run than getting into it because you were good at drawing.