Reliable Design Studio helps Philadelphia homeowners plan basement, bathroom, kitchen, and attic projects with accurate measurements, 3D design concepts, and permit ready blueprints, backed by an honest quote from XactPRM.
When you need more living space but have limited room to build outward, adding space above your existing home may be an option.
Reliable Design Studio helps homeowners explore second floor addition designs in Philadelphia. We start by understanding the existing house and the goals for the new level.
A second-floor addition can provide additional bedrooms, bathrooms, a home office, or other living areas. The design needs to consider the existing structure, stairs, roof, room layout, and connection between the floors.
We create detailed layouts and 3D designs so you can understand the proposed changes before construction.
Our goal is to develop a practical design that adds useful space while fitting naturally with the existing home.
Every Philadelphia project follows the same clear process, so you always know what happens next and what it costs before work begins.
We start by measuring your space in detail - on-site or through our guided remote process - and talking through your goals, budget, and timeline for the room.
We turn your measurements into a 3D design you can review and approve before anything is drafted for construction.
Once your design is approved, we draft a construction-ready architectural blueprint and help you apply for your local building permit.
We generate a detailed, itemized estimate using XactPRM, so you have a real number to compare against any contractor's bid.
We provide a full range of interior design services designed to deliver accuracy, clarity, and lasting value. From your first measurement to your final permit-ready blueprint, our team ensures precision at every stage.
We take pride in delivering construction solutions that exceed expectations. Our clients trust us for our quality, transparency, and commitment to excellence in every project.
Average rating from our satisfied clients
Trusted by 50+ homeowners, businesses, and property developers across multiple cities







We take pride in delivering construction solutions that exceed expectations. Our clients trust us for our quality, transparency, and commitment to excellence in every project.
Do not see your neighborhood listed. Reach out anyway. We design for homeowners across the wider metro area.
Whether it’s a basement, bathroom, kitchen, or attic design, or a full home rehab, we’re here to help you every step of the way – from your first measurement to your final blueprint.
1621 Southridge Trl Algonquin, IL 60102
Interior-only design, 3D concepts, and construction-ready architectural blueprints for basements, bathrooms, kitchens, attics, and whole-home rehabs — backed by accurate, XactPRM-verified quotes.
1621 Southridge Trl Algonquin, IL 60102