O'Fallon homes and this kind of project
Because O'Fallon is made up of two-stories and atrium ranches from the 1985 to 2010 boom, the first thing we check for a home addition here is the plat, setbacks and easements, then floor heights, rooflines and HVAC capacity.
The housing stock here: mostly 1985 to 2010 production two-stories, ranches and atrium ranches, with older ranches and bungalows near the original town center.
On subdivision lots the recorded building line and a decades-old indenture decide what is possible.
Lots, exteriors and approvals in O'Fallon
Decks from the 1990s are reaching the end of their life, and we replace many with composite. Wood brickmould and garage door trim rot at the base. Established trees give some lots good shade, but west-facing patios still call for a roof.
Subdivision lots in O'Fallon have defined building lines and easements, and HOA indentures that may be decades old but still binding. Most additions go to the rear. Matching vinyl or hardboard siding that is no longer made sometimes means re-siding a whole elevation.
What is included
A O'Fallon addition with us includes feasibility review, design, structural engineering, permits, excavation, foundation, framing, roofing, windows, exterior finishes, all mechanical trades, insulation, drywall, flooring, trim and paint.
We take on home addition work across O'Fallon, from the Highway K corridor to old town O'Fallon and WingHaven.
What we watch for
Rear-yard easements and building lines in O'Fallon subdivisions are often tighter than owners expect. We confirm the buildable area from the recorded plat before anyone gets attached to a floor plan.
Working on established subdivision lots with fenced rear yards, as we do in O'Fallon, we plan access for an excavator, a foundation crew, framers, a roofer and every interior trade before the first delivery arrives.
Permits and approvals in O'Fallon
In O'Fallon, a home addition is reviewed by the City of O'Fallon building division. What follows is plan review plus footing, foundation, framing, trade, insulation and final inspections.
Exterior work in O'Fallon can also involve neighborhood HOAs and, in WingHaven, a master association, and we put that package together for you.
Schedule and getting to you
On site, a home addition in O'Fallon generally runs three to six months.
From our Wentzville base, O'Fallon is fifteen minutes or so east on I-70 or I-64. That is close enough that your project lead can stop by most days.
What our home additions looks like
Photographs from jobs we have built. We do not label photographs by town, so these may or may not be near O'Fallon; they are here so you can judge the standard of finish before we meet.
What moves the price in O'Fallon
We price home additions in O'Fallon from a site visit, not a square-foot figure. These are the items that change the number.
- Complexity of the roof tie-in and exterior matching, especially brick.
- HVAC and electrical service upgrades.
More detail
Our step-by-step method for this work, and the factors that move its price, are laid out on the main home additions page. More about the area is on our O'Fallon page.
Home Additions in O'Fallon: common questions
How long does a home addition take in O'Fallon?
Design and permitting typically take two to four months. In O'Fallon, permit review by the City of O'Fallon building division and material lead times affect the start date more than our calendar does.
Do I need approval beyond a permit for a home addition in O'Fallon?
Possibly. In O'Fallon you may be dealing with neighborhood HOAs and, in WingHaven, a master association. City or county approval and private approval are separate, and we prepare both submittals and wait for written approval before ordering materials.
Is it cheaper to build up or out?
Out is usually less expensive per square foot if the lot has room, because a second story requires structural upgrades below and removing the existing roof. Up makes sense when setbacks leave nowhere to go.