Architectural Excellence Tailored to Your Vision
De Simone Designs | Architectural Plans & Consulting
Specializing in Custom Home & Cottage design, Additions & Renovations, and Multi-Unit Homes. Other areas of expertise include Development & Lot Planning, Variances & Rezoning, Residential & Commercial Design.
De Simone Design Architectural Design Services
At De Simone Designs, we transform ideas into spaces that inspire. Specializing in custom homes, cottages, multi-unit residences, and commercial design, our services are built on client-centered values, design precision, and a commitment to quality. From initial planning to permit-ready plans, we handle every detail, making your vision a reality.
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1. Custom Homes & Cottages
Tailored designs that reflect your unique style and needs, with a seamless approach from initial concept to permit-ready plans.
2. Additions & Renovations
Whether you're expanding your home or transforming an existing space, we create additions and renovations that enhance functionality and flow, while blending seamlessly with the original design.
3. Multi-Unit Homes
From duplexes to stacked townhomes, we provide practical, beautiful solutions for multi-family living, emphasizing design integrity and efficient space planning.
4. Development & Lot Planning
Our team navigates zoning, variances, and rezoning requirements to maximize the potential of your property, ensuring compliance and long-term value.
5. Commercial Design
Purposeful, brand-aligned spaces that meet business needs, from offices to restaurants and retail environments.
De Simone Designs Portfolio
Explore our portfolio to see the artistry and expertise behind each De Simone Designs project. From custom homes and cozy cottages to sophisticated commercial spaces, each design reflects our dedication to quality, functionality, and client vision. Every project tells a unique story, crafted with care, precision, and a commitment to excellence. Dive in and discover the possibilities for your next project.
Rear Renovation & Interior Alterations. Chippewa/Niagara Falls
Front Exterior Alterations Proposal
Rear Renovation & Interior Alterations. Chippewa/Niagara Falls
Rear Sunroom Addition. Niagara-on-the-Lake
Rear Sunroom Addition. Niagara-on-the-Lake
Rear Addition - Chippewa/Niagara Falls Living Room, Kitchen & Master Bedroom Expansion
Rear Addition -
Niagara-on-the-Lake
Sunroom Addition (Phase 1 of 2)
Desimone Designs Townhouse Proposal Port Colborne, Ontario
Desimone Designs Townhouse Proposal Port Colborne, Ontario
Semi-Detached Development Proposal St.Catharines, Ontario
Semi-Detached Development Proposal St.Catharines, Ontario
Townhouses - Port Colborne
Multi-Generational Townhouse Units
Semi-Detached - Welland
1,800sf units proposed for planned development
Custom Cottage Design. Crystal Beach
Rear Elevation
Custom Cottage Design. Crystal Beach
Large Addition & Interior Alterations to Existing Home. Fenwick, Ontario
Front Elevations
Rear Elevation
Large Addition & Interior Alterations to Existing Home. Fenwick, Ontario
Large Addition - Welland
New Living, Dining, Kitchen and Master Bedroom Suite addition to this existing side-split
Large Addition - Welland
New Living, Dining, Kitchen and Master Bedroom Suite addition to this existing side-split
Book a Consultation With De Simone Designs
30 min
Consultation Meeting
30 min
Consultation Meeting
30 min
Consultation Meeting
30 min
Consultation Meeting
30 min
Consultation Meeting
About De Simone Design
De Simone Designs, led by Principal Designer and Architectural Technologist Thomas De Simone, brings over 16 years of industry expertise to each project. From custom homes and cottages to complex commercial builds, Thomas combines a deep understanding of construction practices with a refined design sense to create spaces that exceed client expectations. With a commitment to client satisfaction, meticulous attention to detail, and adherence to Ontario Building Code (OBC) standards, De Simone Designs ensures each project is both beautiful and compliant.
