Expansion Scenarios

SpirInCo Revolutionizes Building Expansions!

Before we explain how SpirInCo revolutionizes building expansions, let’s summarize today’s world…


Bill & Sue Smith create a draft of a new master bedroom suite. They hire an architect to turn their draft into blueprints. After a few days and more than a few dollars, the architect realizes that property set-back requirements rule out their original plan. The Smiths will have to settle for a much less desirable alternative. After many weeks pass and a few other alterations to the plan have been made, the blueprints are finally ready. A couple of weeks later, several builders have submitted estimates and one of them is hired – perhaps not the best one, but the most available one.

Landscaping and a large portion of the yard are sacrificed so that trenches for concrete footings can be dug. Before that can happen, the buried gas and power lines have to be re-routed. The trenches get dug; and the city/county inspector is called. Before she gets there, it rains. The inspector doesn’t approve the trenches because the soil/clay in the trenches is soft. The contractor skims the inch and a half of mud from the trenches. He’ll now have to increase his concrete order – the first of many cost overruns. Eventually the inspector sees and probes the trenches when they’re dry and gives the ok to pour the footings. The concrete truck driver gets the Smiths to sign a release of liability in case the concrete truck cracks the driveway – it does. The concrete footings are finally poured. Foundation walls, waterproofing, and foundation drainage take a couple of weeks.

A portion of the roof and portions of some walls are then demolished. The roof and those walls are ‘tarped’ at night. This creates concerns regarding heating/cooling, pests, and security. A construction dumpster for all the scrap materials from the demolition and stacks of new materials usurp much of the driveway and parking. Tracking mud into the house becomes a way of life. The dumpster truck cracks the driveway more when picking up the full dumpster.

Wiring, ductwork, and plumbing will have to be extended out to the new addition. (Sometimes completely new, additional HVAC systems or water heaters have to be installed for home additions.) The ‘sprawling’ house will operate much less efficiently than it did in its original state – a lot of increased weather exposure for a small amount of additional space.

After 4 ½ months of noise, mess, numerous cost overruns, weather delays, and carrying groceries from the street through the mud because the driveway is full of construction vehicles [and don’t forget the dumpster], Bill & Sue can use their new master bedroom suite. After another 3 months, what’s left of the yard has mostly recovered and the tracking of mud is now just a bad memory.

There has to be a better way – there is!’


A 2-bedroom, 1-bathroom addition in less than three weeks after construction begins!

Monday, October 13, 2014: Tom & Lillian Jones learn that triplets will be coming home in about 5 months. That’s three times the number of kids they’d intended to add to the two they already had – the house would have to be enlarged or they’d have to relocate. The Joneses don’t have to shop around for another house, for an architect, or for a builder; they had planned ahead. They had built a SpirInCo house because they were planning eventually to enlarge their house by putting in a home office suite and to stop commuting to work. Instead, that built-in SpirInCo expandability would now serve an unanticipated need.

Sunday, October 26, 2014: Tom & Lillian visit the SpirInCo website with intentions of later contacting their SpirInCo franchisee (or licensee) – the one who built their house. They look through numerous options of plans for adding a level to their type and size house – or possibly multiple levels. They joke about picking one of the mother-in-law suites so the older kids could cook & fend for themselves.

Wednesday, October 29, 2014: The Joneses, after weighing their many options, settle on a single level, 2-bedroom, 1-bathroom addition; and they place an order with their SpirInCo ‘dealer’ for the needed pre-fabricated components.

Friday, November 21, 2014: After receiving the expansion components for the Jones addition from the regional SpirInCo manufacturing facility, and upon seeing a predicted 4-day window of precipitation-free weather, the Jones’ SpirInCo builder schedules a crew and a crane for the Jones job to start the following Monday.

Monday, November 24, 2014:

* 6:45 a.m.: The Joneses cheerfully move their cars out to the street as giddy excitement builds.

* 7:00 a.m.: A SpirInCo crew arrives at the Jones house with a small crane (much lighter than a concrete truck) and a truckload of components for the Jones’ addition.

* 11:30 a.m.: The crew has disconnected some siding off the core section of the house; and, armed with air-wrenches for removing lag screws, they’ve removed the reusable roof panels from a section of the house; and the crane operator has set those components aside for later re-installation. NO SCRAP! NO DUMPSTER NEEDED!

* 1:10 p.m.: The original rafter trusses and two rafter-wall spacers are hoisted off the house and set aside.

* 3:30 p.m.: The new radial wall and two exterior walls have been lifted into place and attached. The walls all came pre-wired and some had pipes built in.

* 3:45 p.m.: Pallets of interior components/materials have been lifted up to the floor of the new section – the floor that was previously an attic floor.

* 4:00 p.m.: Materials that should not be subjected to frost have been covered; and the crew is finished for the day.

Tuesday, November 25, 2014:

* 7:00 a.m.: The SpirInCo crew arrives back at the Jones’ house.

* 11:30 a.m.: The new ceiling joist/truss system has been lifted into place and fastened to the core of the house and on top of the three new walls and one of the previously existing walls.

* 11:45 a.m.: The new pre-cut, numbered attic floor panels are hoisted up and placed on top of the new attic joists – just in time for lunch.

* 1:30 p.m.: The floor panels have been fastened and the same two rafter-wall spacers that were previously removed have been lifted back into place – their new, one-story-higher location – and re-secured with lag screws.

* 3:30 p.m.: The same, previously removed roof components are lifted & fastened back into place.

* 4:00 p.m.: The crew calls it a day – a very productive day.

Wednesday, November 26, 2014:

* 7:00 a.m.: The SpirInCo crew arrives back at the house.

* 11:45 a.m.: The previously removed siding, molding, and some new siding have been installed/re-installed.

This 600+ square foot addition to the Jones’ house is now ‘dried in’ (weatherproofed) in 2 ½ days, well within the 4-day fair weather window.

Thursday, November 27, 2014: Happy Thanksgiving! The two kids ‘picnic’ in the new addition.

After the long holiday weekend… * The SpirInCo crew can now finish the interior in a week or two. Weather is no longer a concern. (The Joneses could have opted to do the interior themselves or hire a local contractor; but they go with the SpirInCo expertise.)

 * All ductwork, wiring, plumbing connections are very close to their sources – the core section of the house. Remember, most of the new wiring, conduit, and piping is already in the new walls from the factory.

* This house now operates more efficiently than before the ‘spiral’ addition was built – the opposite of a typical ‘sprawling’ addition. That’s because the usable-square-footage/exterior-exposure ratio has increased. Conditioned floor space has increased by 16% but heating/cooling costs by only 7%.

* The Joneses reclaim their driveway – their mud-free, un-cracked driveway.

* There have been no cost overruns. From the time an agreement was reached with SpirInCo, the Joneses knew precisely what their costs would be.

* The Joneses still have the option to add on that home office suite when the time is right – soon with 3 more reasons to want to work from home; and they can have that addition installed just as painlessly as this addi-tion was installed. (Or they could have added it at the same time.)

* In addition to built-in expandability, there are many more advantages that a SpirInCo building offers.


* The Bosworths, who were getting ready to add a home office and recreation room to their SpirInCo house, decided to add a mother-in-law suite at the same time. Why? Some friends, a grad student couple, would be delighted to rent the mother-in-law suite. The rental income would almost pay for both additions. Their proximity to the University Med School will all but guarantee continuous occupancy.

Next year the Bosworths will add three more apartments to their SpirInCo configured investment property – an apartment building across town. They won’t have any trouble doing that after showing their banker that they’ve successfully rented the original four apartments in the building for two years and that they have a waiting list of future tenants. Acreage is scarce and outrageously expensive – as it is in most college towns; but that won’t affect the Bosworths. Their investment property will grow up instead of out.

* After checking on prices at retirement communities for Beth’s parents, the Carlsons have placed an order for a two-level mother-in-law suite from their SpirInCo dealer – but that’s not all. For far less than the re-tirement community was going to cost, they could not only add the parents’ suite but they could also add a home theater and an exercise room between their living quarters and the parents’ pad.

* The Daltons have a hexagonal SpirInCo house with a 200 square foot core and six 400 square foot outer sections – 2600 square foot total. They will be moving to another state and will have to put their house on the market. [Size and location are two of the most important criteria home shoppers take into consideration.] The Dalton’s house can be listed as a 2600 square foot house; AND it can be listed as a 3000 square foot house or a 3400 square foot house (with asterisks & footnotes explaining the readily expandable feature of the house and a SpirInCo quote for the cost of expansion.) They will have three times as many prospective buyers who like the location of their house.

There are many more potential COMMERCIAL APPLICATIONS of SpirInCo-configured buildings than residential applications. The building expansion examples above happen to be residential because laying out a home is always more complicated than laying out an office or office suites. Homes need spaces for many more purposes than a business does. Homes need space for kitchens, eating areas, laundry rooms, utility/maintenance, storage, living rooms, bedrooms, bathrooms, and often garages; and their relative positioning is very important. Businesses need a little bathroom space and a lot of non-bathroom space – other amenities are optional.

 A few of the many non-residential floor plans from our library of plans are included in the VIP Tour section of our website. The expansion process will be the same – fast and painless when compared to typical sprawling building expansions.

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