LEED Silver at $191 per sq ft in Houston - final budget and LEED meeting

We have a final budget! I met this morning with Michael Strong of Green Haus Builders (www.greenhausbuilders.com), to go over the final numbers, and we are right around $625,000 for the final, "take it to the bank" number.
This works out to be $191.37 / sq ft as the house is 3,266 sq ft. Not bad for a custom, LEED Silver house.
If you check out the chart, you can see some fluctuations, reflecting the budget phases. Back in October we first put in all the things we could possibly want (within reason, and with an overall budget conscious approach), which took the budget up around $600,000.
This number then made us take a long hard look at priorities, and we eliminated some things we did not really need. Out went some things - metal siding, electronics and data network and a few others. Turns out this was the right thing to do, to leave room for what was going to come later.

Then, once the plans were finished courtesy of RD Architecture (www.rdarc.com), Michael got in accurate bids from the subcontracts. In addition, the plans included completed engineering, with a peer and beam foundation, rather than the slab previously envisaged. So the two big increases at the end are for concrete and framing - the core essentials of the house. Some things had just not been added - millwork for example. There were also several small increases, as the plans were now used to make proposals, and some choices, such as a better side door, a slightly larger window in one place - yes, my extravagant steel sink is in there somewhere :-)

We feel that we have a very accurate number now, and will proceed with permitting and seeking financing.

Numbers_budget

We also held a 3 hour LEED meeting a couple of weeks ago with our LEED rater, to go over all the points - we are looking very solid at the Silver level. We went over each category, and made an accurate count, and where an estimate was called for, made sure it was conservative. Even if we lose 4 or 5 points for some reason, we will be able to achieve Silver, and that is exactly what we were aiming at.

Filed under  //  LEED   architect   budget   builder  
Posted by Oliver Bogler 

Architectural plans are complete for our green house in Houston!

As promised, our architects. RD Architecture (www.rdarc.com), have delivered complete plans for the house! We had gone over the details a couple of weeks ago, and then pored over the near-final plans one more time. Now we have the final plans in hand, and they are gorgeous!

There are many detailed drawings relating to specific elements in the house such as the storm shutters and the cupola, but today I just want to show you the front of the house, and take a look at how close we got with our original concept of a first floor.

Our goal in the look of the house - its first impression, its curb appeal - was to mix some traditional New England with contemporary materials. Imagine the roof as metal, and the siding appearing in two orientations as a painted cement composite - Hardi Plank. color to be determined. Then there is stone at the bottom and at the entrance. I think we achieved a very pleasant look, that makes you think of home, not McMansion or mega house. A house that is the right size for 4 people to live comfortably. I personally really like the cupola, which brings a great touch, and natural light into the hear of the house. At the same time the house is green - a simple shape and frame making it affordable to build, and giving maximum living space for minimum exterior surface. 

Then, take a look at the original sketch we had made of where we thought the rooms might be. Our goal of a flow between kitchen, breakfast and family room matured into a circular flow around the central staircase that is open to the living area, not the entrance way. Kathleen Reardon, our lead architect, had discussed this circular flow with us early in the process, which she advocated as allowing communication between the different areas of the house. We never intended to use the dining room as a dining room - one table is OK for us. It is now labeled den, which is how we will use it, but it could become a dining room down the road. 

Our living room, which initially was a separate room, changed into a separate area off the family room, and open to it. It got smaller to focus our square footage on the common areas. 

You can see for yourself how the kitchen, mud room, butler's pantry etc all came together very nicely, to provide great functionality. 

I will return to the subject of LEED points in a couple of weeks after our next meeting with the LEED rater - at the moment we are on the brink of Silver, with a conservative estimate and our eye on several additional points that could be picked up during construction. 

Next step - Michael Strong of Green Haus Builders (www.greenhausbuilders.com) is putting together the final budget, and then it will be off to seek financing!

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Filed under  //  LEED   architect  
Posted by Oliver Bogler 

2010 - the year we build our green house in Houston!

Happy New Year everyone! This is the year we build our house! Happy indeed!

Although I haven't blogged much recently about the house, we have been busy behind the scenes.

Our architects, 
RD Architecture (www.rdarc.com), are very close to completing the permit plans - i.e. the plans that we will use to get regulatory approval to build, and also to get financing. I think we will have them by mid-January. 

In the meantime, RD Architects have also been working hard with us on design details. We  have gone over the lighting, outlets and plumbing. We have made detailed plans for built ins in the library, kitchen, pantry etc. We have completed plans for the floor tiles. And many more details besides. Yes, there are many details, and it has driven home that this is a custom home, and has made the whole project seem very real. We can really imagine what the rooms will look like. Very exciting.

We also met with Mary Edwards of Luminous Ground (www.luminousground.net) to initiate the creation of a landscape plan. You need some landscaping after the building, but we are also trying to take aim at some LEED points. Lets see what we can achieve within our budget. 

We have another meeting at the end of the week, with Michael Strong of Green Haus Builders also joining us (www.greenhausbuilders.com). At that stage we will have a clearer idea of the next steps. 

In the meantime, check out a couple of elevations of the library and kitchen:

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Filed under  //  LEED   architect   builder   landscaping  
Posted by Oliver Bogler 

Bamboo floor for our house - #greenbuilding in #Houston

Another Saturday, another selection! Today we visited Alpha Flooring to select the material for the wood floors in the house. Our plan is to have wood throughout, except for the bathrooms, which will be tile, and the mudroom and darkroom, which will have a vinyl like floor. Even the kitchen will have wood.

As always, three considerations are in our minds - look, green and budget. In this instance, the three came together beautifully in our choice of bamboo. Our architect had recommended that we take a good look at bamboo, but our initial inclination had been not to consider it. However, once we saw it, and especially the vertical cut, we really liked it. We have chosen Vertical Spice from US Floors - see web-shot below. It has a wide range of colors in it, leaving us many options in terms of matching furniture (and we already have a fairly decent sprinkling of different woods in the house...). We like the color - it will go well with our goals for cabinets. And bamboo is very green - rapidly renewable as harvesting it is more like cutting grass than cutting down a tree, and it is manufactured in a relatively green process. LEED points are available for using bamboo - how many I am not exactly sure, but better to gather some, in our (potential) quest for the Gold.

It really clicked - felt like this was the right choice for our project: a contemporary yet warm feel. Green. And remarkable easy on the budget. We await a formal quote from Alpha Flooring, but we know that this product falls near the lower end of the range we had in mind, probably erasing a little from the budget are working on. Happy day!

Engineered_vertical_spice_usfl

Filed under  //  LEED   selections  
Posted by Oliver Bogler 

Projected energy usage and HERS rating for our green house in Houston

Amidst all the selections, pricing estimates and getting final decisions made in many areas, we are also getting some very exciting projections related to the energy efficiency of the house.

As background, our choice to go with regular stick-and-frame construction, as compared to SIPs or even concrete shells, was driven by budget. In Houston, stick-and-frame is remarkably affordable, making it hard to go another route, when you are trying to get to around $150/sq ft. The major concern was that stick-and-frame would limit how much can be achieved in energy efficiency. Current projections suggest that you can still get a pretty good HERS rating, and low energy costs with our approach.

To offset the choice of construction, we opted for a simple rectangular house shape, which gives you a good ration of volume to shell, making it inherently energy efficient. Then we positioned the windows out of the direct sunlight, and shaded them where possible. Add a metal roof, some good insulation, a sealed attic and you can get pretty far. 

The HERS Index rates your house, just like Energy Star rates your appliances. You can read about HERS Index here. In summary, a HERS rating of 100 is the standard new home, in terms of energy consumption. A rating of 0 would be off the grid - a house that consumes no energy, by producing its own. Most existing homes are above a 100. Our '50s bungalow, with $500+/month a/c bills in the heat of the Houston summer is probably well above 100. Right now our estimate is below 60!! 

This is very exciting, and will also result in additional LEED points. When doing LEED scoring, in the energy efficiency category, you can use HERS ratings to get a simple LEED point number. Our original estimates was at HERS 77, giving us 8.5 LEED points. Now we may gain more than twice that. Hmmm... This puts LEED Silver in the bag, and has been an impetus to look to see whether we can go further.

In dollars and cents, this also has an impact. We got a first estimate of the energy costs of our house - see below - and it is below $2,200 for the year. This is electricity only, which is heating and cooling and appliances. (Water heating, cooking and the dryer will all be gas.) This year, to date, we have already paid over $3,000 with one more month to go. And the projections are at 16 cents/KwH while we are paying around 13.5 cents for our renewable energy plan. So, taking that into account we could get as low as $1,850. So, our 3,200 sq ft new house might have 60% of the electricity cost of our 1,900 sq ft '50s scape off

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Filed under  //  HERS   LEED  
Posted by Oliver Bogler 

LEED for Homes Reference Guide - searching for more points for our house in Houston

The LEED for Homes Reference Guide came last week, and this morning I had some time to sit down and read it. By read, I mean go over the section intros and read some of the parts in depth. It is quite long, and just a tad dry...

I mainly focused on the areas where our preliminary assessment appears to leave room for more points.

Here is the big picture: LEED is a point system, with some prerequisites and then points depending on how green you can go. There are 8 categories in which you can earn these points, encompassing everything from what you build to how you build it and spread the word. There are different categories, depending on how many points you get.

For our house, which will come in around 3,200 sq ft, we need 51 points to gain Certification (the basic level) and 66 to gain Silver. Our preliminary assessment by our architects puts us at 59.5, so well within the basic, and tantalizingly close to Silver...

You can see our preliminary assessment here:

Click here to download:
LEED assessment.pdf (114 KB)
(download)

In some areas we are getting lots of points. In others we seem to be leaving lots of points on the table, in particular in the SS Sustainable Sites, WE Water Efficiency and EA Energy and Atmosphere areas.

In the SS and WE the assumption is that we install a high efficiency irrigation system, perhaps with water reuse. We will also landscape with local, drought resistant plants and add some trees. At present we do not have an irrigation system and do not water our yard, front or back. It gets a little dry in the summer, but not so that you would notice it overly much. We do not have real grass, but a local ground cover that does well. So, if we install no irrigation system at all, we may well gain points, as our water use should be low compared to the typical house in the area. Currently our annual consumption is around 50,000 gallons.

The big one is the EA category - we are currently programmed to gain only 10 of 38 points, and 8 of 34 of the Optimize Energy Performance category. In EA you can either go through a global assessment, using the HERS system, or section by section. We are going to do the former, so we will learn much more when we have our preliminary HERS assessment. The 8 points here are for a HERS of 72 - with better windows, and a higher SEER rating on our A/C we may get higher, and earn more points.

In total we need a projected 6.5 points over what is already in the plan. It seems that with no irrigation and careful landscaping, we may gain 5 there alone. With a good HERS score, we may well earn another point or two. Perhaps Silver is not out of the question.

Big caveat: $

Everything has to fit the budget. October will tell us more, as we get the price projection once the schematics are complete. That said, leaving out the irrigation system will actually save money!

Filed under  //  HERS   LEED  
Posted by Oliver Bogler 

Preliminary #LEED assessment of our #greenbuilding in #houston - points mean prizes

LEED is all about points. There are categories, each with a certain number of available points, and thresholds you need to meet to qualify. This is all overseen by accredited examiners.

Our architects, RD Architecture LLC (www.rdarc.com), sent over the preliminary assessment for us a few days ago, and it makes for interesting reading. We are going to go over it more next week with them, so I just want to give the big picture today.

The exact boundaries of the LEED categories (Certified, Silver, Gold) are set by the size of the house. We are planning on 3,000 to 3,200 sq ft, so we need 49 points to get Certified (64 for Silver).
Bruce_forsyth

So we need points - and as everyone knows, points mean prizes. 

Points are available in the following categories:

ID Innovation and Design Process     
Max 11 points 
Efforts for planning, team coordination, and innovative design/build solutions are rewarded in this category

LL Location and Linkages
Max 10 points 
Points are earned here for location of site in reference to community resources and public transportation as well as existing infrastructure. Many of these points are at “no cost” to the homeowner.

SS Sustainable Sites      
Max of 22 points 
Many credits here are related to surface water management and landscaping. Most of the site is covered with impermeable material. Consider replacing hardscapes with permeable materials to minimize water runoff and heat island effect.

WE Water Efficiency    
Max of 15 points (3 points minimum) 
Water efficiency credits are determined largely by high efficiency fixtures, rainwater catchments and gray water reuse.  Active water reuse systems will add expense to the project: water storage tanks and additional plumbing might be beyond the scope of the budget. 

EA Energy and Atmosphere   
Max of 38 points 
A preliminary HERS rating will be needed. This involves inputting information into a computer model for analysis. At least 8 points are anticipated for wood frame construction, 18 SEER system, and cellulose insulation with energy star windows.

MR Material and Resources         
Max of 16 points (2 credits minimum) 
Eight points of this category can be earned by using environmentally preferable products, and with care this is achievable.  Three points for reducing waste can be earned but has proven to be very difficult. Up to three points can also be earned for advanced framing techniques.

EQ Indoor Environmental Quality   
Max of 21 points (6 point minimum) 
Points range from indoor purification systems to walk off mats at every entry. Indoor air quality will be a focus for this project.

AE Awareness and Education   
Max 3 points 
Two credits are available for homeowner education and public awareness. 

Right now we are are estimated to be in the high 50s, so well above the threshold for Certified. And perhaps within shouting distance of Silver...? We'll see.

By the way, thanks for reading this - you are helping us with "AE Awareness and Education". Publishing this website gives us something towards one of those three points!

( If you are mystified by the picture check here, under catch phrases: http://en.wikipedia.org/wiki/Bruce_Forsyth )

Filed under  //  LEED   planning  
Posted by Oliver Bogler 

#greenbuilding in #houston - how sweat equity & simple design can #LEED in the right direction

Tomorrow we officially start the process of building our house!! Very exciting. We feel very good about our strategy, arrived at over the last week in close collaboration with our architects and our builder. I wanted to share some of the things we learned.

Pick a team you can work with
W
e picked a team that we feel very comfortable with and confident in - architects Kathleen Reardon and John Dazey of RD Architects (www.rdarc.com), and Michael Strong of Green Haus Builders (www.greenhausbuilders.com). Not only do we like their work, but we know that they are very knowledgeable on all things green. They have worked together before (for example on Houston's first LEED certified home) and so we can benefit from their knowledge of what works and what doesn't. You only do this once, so it is hard to do the "control experiment" as we scientists say, but if past performance is any indication of future performance... But seriously, in the course of the negotiations over the past week, we gained confidence that we all shared a common goal - to build the best house we could, within our budget. You can learn a lot about people in how they negotiate.

I have to emphasize, that in all the below, both Kathleen and John, and Michael, were very forthcoming with creative ideas on how to make things fit our resources.

LEED or not LEED?
First of all, what is LEED? It stands for Leadership in Energy & Environmental Design, and you can learn about it in this video from the US Green Building Council (http://www.usgbc.org):

As you saw in this video, to get LEED certification requires, alongside resource saving technology and building practices, time. There are mandated meetings to hone the design, and closer oversight. For example there is a required Charrette (yes, I had to look it up too: http://en.wikipedia.org/wiki/Charrette) - "an intense period of design activity". And of course, this increases the cost of the design phase. So, one of the debates we had was whether LEED was worth having. 

What made us decide to include the basic LEED certification was market positioning down the road. We learned from Michael that soon LEED certification would be a searchable characteristic in the Houston MLS that you use to search for a house to buy. In markets that have had this for several years, statistics are beginning to show that houses that have proven green status, such as LEED confers, sell faster and at higher returns: in Seattle 18% faster, and 28-37% higher value (http://www.greenhomeguide.org/features/northwest_green_homes.html). 

So, for us, this is the only way to go. We are likely to live in this house for many years, but we may well move again, after the kids are grown. So, how to compensate for the cost increase? Two things: simplicity and sweat-equity.

Simple, simple, simple

Design is pretty much all time - the architects time, and as these are highly skilled and creative people, their time is valuable. But when it comes to building, about half your costs are also time - the time of the people actually putting the house up. In both phases simplicity can save time, and so money. As we walk through recently-built open houses we are often mazed (not so much amazed, though) - by the time we are in the fourth bedroom, we often wish we had brought the breadcrumbs to find our way out again... This suggests that simple design is actually hard - 

A good example: one of the things we are very interested in, is a white metal roof - good radiant barrier, and durable. The main cost here is the time of the skilled workers who can put these up. And a simple roof line might cut the time it takes to install the roof in half. So, we are aiming, right from the beginning, for a simple outer shell, that will accelerate the design process and the building process.

Sweat Equity

A familiar concept from the world of start-ups, it also exists here. One way we were able to bring the design phase into our budget, was by taking on some of the work ourselves. No, I am not going to night school to get my architect's license :-) But of course there are many decisions to be made, and by getting involved, and learning as much as we can, we can accelerate the work of our architects. 

As I posted a week or so ago, we came up with a basic first floor arrangement - this will serve as a jumping off point, eliminating the first phase which typically consists of offering three quite different floor plans. Then, we will do much of the legwork on choosing appliances, fixtures, finishes etc, and get as far as we can without help. What fine tuning we need, we will add to our design package "a la carte". Also, by doing these things in a timely manner, we can allow the architects to design these things into the first draft, so to speak. Then, we have also pledged, to ourselves and our team, that we won't change our mind a lot during.

Back to the team

Another item we constrained in arriving at the budget, is the number of highly detailed builders drawings that will be produced. With less detail, the builder will have less specific instructions - this will mean that more of the parts of the house will be standard - for example the kitchen cabinets might not be very custom. We have no experience here, but having a builder and architect who have worked together before is probably a pre-requisite for this. Of course, we can always add some additional drawings if they are needed, again, a la carte.

Anyway, tomorrow we are having a kick-off meeting here at our house to get the ball rolling!

Filed under  //  LEED   architect   builder   planning  
Posted by Oliver Bogler