Logo I'm creating - critique?  

the words seem very long,...
the words seem very long, almost unreadable (important for a logo), I would do something to break these a bit up without using spacing: with colour for instance.

2 colors
Oh, yeah, I see what you're saying. Here it is with 2 colors.

two colors! with just one col...
two colors! with just one color it looks good but when you try and read it your eyes strain to make it out....Honestly I didnt know what it said at first other than modern...well at first glance.

2 colors
Definitely an improvement.

an improvement?
an improvement?

It's getting there.
Try varying the overhang and thickness of the "roof" and, maybe, increasing a bit the height of the dl "chimney?
One could play with this all day!

Call it good and leave it alone...
the "chimneys" are fine. Chances are that the size it is appearing in this thread will be one of the larger uses of it, meaning, the smaller it gets you will begin to lose your roofline if you make it thinner and may lose the association as a roofline and it will simply become a rule.
It's not half bad!

I like the idea of suggesting...
I like the idea of suggesting a flat roofed building, perhaps emphasise that and use more lightness and delicacy.
Its hard to really comment without knowing anything about the project, is it a green field development, are there any postive credentials you could communicate?
I'm a sucker for landscape and hope you don't mind but I was having trouble sleeping, just a quick rough and completely ignorant idea.

More about the committee
The committe's purpose is to promote modernism to the people of Redlands and preserve examples of modernism in the city. We have a large number of mid century modern buildings and homes in Redlands, but we don't have the appreciation for them that some of our neighboring cities like Palm Springs have. We're building a website to highlight modern buildings and architects that are prominent in the city.
My idea with the logo was to give the feeling of a flat roof house. I liked how the "dl" made a natural chimney and pictured the other d's as being roof vents or posts. Here's a version working off of virtueaudio's suggestion by cutting off the other 2 d's, but keeping the "dl" chimney and the overhangs. Maybe this highlights the "dl" as a chimney more? I originally thought of putting a puff of smoke coming out of the chimney, but thought it was apparent enough that it was a chimney without the smoke. I also thought the smoke didn't look right. My wife still likes the smoke and wants me to bring it back.
Thanks for the feedback! I'm not a designer of any sort, so this is helpful.

A bit more
We're a committee of the Redlands Conservancy. A bit from the website:
"Discover the Redlands Conservancy, a non-profit group dedicated to the protection and enhancement of the community assets that have historical, architectural, and cultural significance for Redlands and the surrounding region.
We strive to help our community realize the full economic, social, and aesthetic potential of its architectural and geographical assets.
Our mission: To preserve Redlands' historic built environment and to conserve the irreplaceable natural and agricultural environments to connect Redlands' residents and visitors to our pioneers and visionaries."
http://www.redlandsconservancy.org/

Smoke
Here's an example with smoke.

More overhang
Extended the overhangs out a bit.

Not sure about the smoke.
It makes me want to see shrubbery and kids and dogs playing in the front yard under lollipop trees. Besides, it's not PC to pollute.
Thicken the roofline a tad? Extend the chimney a little? As I said before, one could stay at this all day! It is fun, though. Thanks!

tktoo
got it right -- some good ideas. I like it as is without the smoke.