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Top-Rated Architects in O Fallon - Updated Nov 2026

Avatar for Evolution Drafting
Evolution Drafting
3.7(
127
)
Draftsperson/CADDArchitectDesigner - Building+1 more

Serving O Fallon, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I hired them to create plans for an apartment building. The process was quick and painless. Cost was good. The plans are full complete abd ready to take to builders for quotes. I will definitly use them again."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
71 neighbors recently requested a quote
Avatar for APEX Drafting LLC
APEX Drafting LLC
3.9(
7
)
Draftsperson/CADDDesigner - BuildingArchitect

Serving O Fallon, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. \nYou will find us to be competitively priced with close attention to the details. \nOur reputation is based on service, safety, and quality, regardless of how large or small the job. \nWe look forward to building a lasting relationship and guarantee your satisfaction! \n

Plan set 1
257 neighbors recently requested a quote
Avatar for Frankie's Landscaping, LLC
Frankie's Landscaping, LLC
3.9(
15
)
Architect - LandscapeArchitect - Landscape - For Business

Serving O Fallon, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Credit card accepted

Customers say: True professional

"Frankie is the BEST! Frankie and his crew transformed our front and backyard. He listened to every detail I wanted and worked his magic. We are so happy with his work. We have recommended him over and over again to family and friends. Frankie is such a hard worker that goes above and beyond for anyone. His work is second to none."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

2 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Terraform Development & Design LLC
Terraform Development & Design LLC
4.0(
1
)
ArchitectDraftsperson/CADD

Serving O Fallon, IL and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Offers commercial services

Terraform Development & Design LLC, delivers expert permit-ready architectural plans and drafting services nationwide. With 8+ years of experience and hundreds of clients across all 50 states, we create code-compliant residential and commercial construction documents that get approved fast and built right. \nFrom site plans, floor plans, elevations, structural & foundation drawings to MEP coordination, full construction sets, 3D renderings, interior design, solar PV layouts, and precise material takeoffs - we handle it all. Fast 4-6 week turnaround, 3 design revisions included, free revisions for city redline changes, transparent pricing (starts at $2,000), and direct partnerships with licensed engineers for stamps in every state.

997 neighbors recently requested a quote
Avatar for Walter Landscaping LLC
Walter Landscaping LLC
5.0(
1
)
Architect - LandscapeArchitect - Landscape - For Business

Serving O Fallon, IL and surrounding areas

Approved

Free estimates

Walter Landscaping LLC gives you the top-quality landscaping services that you deserve. For more information about our services and pricing please feel free to call us.\n\nWe serve in O'Fallon, IL, Shiloh, IL; Lebanon, IL; Swansea, IL; Belleville, IL; Caseyville, IL; and the surrounding areas.\n\nHardscape Contractor, Landscaping Contractor, Affordable Landscaping, Garden Maintenance Services, Landscaping Maintenance Service\nProfessional Landscaping , Reliable Landscaping , Affordable Landscaping , Quality Landscaping , Trusted Landscaping\n\nFor more information visit our website: https://landscaperofallonil.com/

Landscaping
Landscaping Project
Landscaping Project
Landscaping Project
Landscaping

+51

Response time7 hrs
2 neighbors recently requested a quote
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Architects FAQs, answered by experts

There are differences between universal design and ADA accommodations, but the outcomes are often similar. While universal design is a proactive process that takes a social justice approach to accessibility for all, ADA accommodations are focused specifically on accessibility for individuals living with disabilities. ADA accommodations often take the shape of wider doors and hallways, ramps, elevators, lower counters and sinks, and easy-to-grab door handles; universal design can include these plus emphasize better lighting, tractioned floors, and other building elements that allow all people to use buildings more comfortably.

An architect is usually involved in the process of determining the layout and structural features and requirements of the home itself, taking into account the local codes, climate, and materials needed to make the home structurally sound. Architects may communicate more with contractors and subcontractors throughout the building process. In comparison to architects, interior designers typically focus on the aesthetics of a home interior and possibly exterior, helping the homeowner decide on color schemes, textures, and materials to incorporate into the design. 

While classic Palm Springs architecture in the Palm Springs area will naturally cost more due to the high cost of living, prices across the rest of the country will vary. Remember that older homes, including those built before 1970, will cost more to renovate due to updated building codes—something to keep in mind when considering the upfront cost of the house.

You'll find Arts and Crafts homes across the country in varying styles. On the East Coast, bungalows and Tudor Revivals fill the Boston area through New Jersey. In the West, Mission-style homes incorporate terracotta shingles, white stucco siding, and rounded archways.

It can take anywhere from a few days to several months to draw up architectural plans, depending on the complexity of your project. Architectural plans are highly detailed documents that take time to complete, and any changes or alterations can significantly extend how long they take.

The O Fallon, IL homeowners’ guide to architectural services

From average costs to expert advice, get all the answers you need to get your job done.