Whole home Renovations, Additons & Custom homes in Radnor
Clarity Building Group enjoys building in Radnor because the township offers a distinctive mix of Main Line character, established neighborhoods, and homes that reward thoughtful design. From gracious stone Colonials and Tudor-inspired residences to updated mid-century properties tucked along winding streets, Radnor has an architectural identity shaped by mature trees, generous setbacks, and a strong sense of place.
We appreciate the opportunity to create work that feels at home here, whether that means a seamless addition, a whole-home renovation, or a new custom residence that responds to the scale and craftsmanship seen near Lancaster Avenue, the Radnor Trail, and the Villanova area. Projects in Radnor also benefit from a process coordinated with Radnor Township’s building and code review framework, which helps ensure that new construction and renovations respect both the community fabric and the expectations of township oversight.
Architectural Inspiration Found Throughout Radnor
The homes and historic properties referenced here were not built, renovated, or restored by Clarity Building Group and are shared only as inspirational examples of the craftsmanship and architectural character found in Radnor.
Ardrossan Estate: 800-acre tract
- Architect/Builder Duo: Horace Trumbauer (Architect) / Robert L. Montgomery (Client-Managed Construction)
- Project Summary: Completed in 1912, this 50-room Georgian Revival manor is perhaps the most famous estate on the Main Line, serving as the inspiration for the play and film The Philadelphia Story. Its limestone accents and grand proportions represent the peak of Gilded Age residential design in Radnor.
- See where it is on Google Maps
The Willows (Rose Garland): 490 Darby-Paoli Road
- Architect/Builder Duo: Charles Barton Keen (Architect) / Built for John Sinnott Jr.
- Project Summary: This 1910 Spanish Revival mansion is distinguished by its dramatic red-tiled roof and sweeping terraces overlooking a 2.5-acre pond. Originally a wedding gift, the estate now serves as a public park and is a quintessential example of the "Country Place Era" of residential development.
- See where it is on Google Maps
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320 Louella Avenue
- Architect/Builder Duo: Francis Albert Gugert (Architect) / Jonathan D. Lengel (Builder)
- Project Summary: A cornerstone of the South Wayne development, this 1896 Colonial Revival home demonstrates the synergy between local architects and master builders. Its prominent stone tower and detailed woodwork highlight the "individualized" approach to speculative suburban housing pioneered in Radnor.
- See where it is on Google Maps
Woodcrest (The Paul Estate): Cabrini University Campus
- Architect/Builder Duo: Horace Trumbauer (Architect) / Anthony J. Drexel (Development Patron/Investor)
- Project Summary: Completed in 1902 for James William Paul, Jr. (son-in-law of Anthony Drexel), Woodcrest is one of Trumbauer’s most significant formative mansions. This 51-room Elizabethan-style manor, constructed of Wissahickon schist, transitioned Trumbauer from a designer of suburban villas to a master of grand estates, eventually serving as the centerpiece of Cabrini University.
- See where it is on Google Maps
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A LIST OF RESPECTED CUSTOM BUILDERS IN RADNOR
Finding Your Fit: Selecting a Builder Based on Your Project Goals and Team Structure.
1. Estate-Scale Custom Home Builders
These firms focus on custom homes and estate properties within Radnor’s established residential areas. Projects are typically architect-driven and may involve complex site coordination.
Best Suited For:
- Ground-up homes in established communities
- Architect-led residential projects
- Properties with layered design requirements
2. Custom Renovation and Addition Specialists
These builders specialize in modifying and expanding existing homes through additions and structural changes.
Best Suited For:
- Reworking outdated layouts
- Adding space to existing homes
- Structural modifications
- Renovations tied to long-term use
3. Design-Build Firms
Design-build firms manage both design and construction phases within one team.
Best Suited For:
- Clients seeking a simplified process
- Projects requiring coordination across phases
- Homeowners preferring one point of contact
WHAT IT MEANS TO BUILD AND RENOVATE IN RADNOR
Radnor Township’s residential fabric is defined by early 20th-century stone Colonials, Tudor Revivals, and Main Line estates, alongside mid-century subdivisions and carefully integrated infill, often featuring Wissahickon schist, slate roofs, and traditional timber framing. Renovation work frequently contends with thick masonry walls, aging mechanical systems, plaster restoration, and the integration of modern performance standards without compromising historic character, while additions require disciplined massing and material continuity. Builders must navigate Radnor’s zoning code, historic resource considerations, stormwater management requirements, and a rigorous permitting process that can involve township review boards and detailed documentation.
WORKING WITH ARCHITECTS IN RADNOR
Selecting a Design Partner for Your Project
Radnor includes a mix of historic properties and newer custom homes, supported by architects experienced in both preservation and contemporary design. The right partnership depends on your design direction, project complexity, and approach to budgeting. Early alignment helps define a clear design path and supports a coordinated team.
Design Firms Active in Radnor
Architects in Radnor are often retained directly by homeowners before builder selection. Clarity Building Group typically joins during design development, working alongside independently selected architects to carry projects into construction. Below are several firms active in and around Radnor. Reviewing their work can help determine alignment with your project goals.
Please note: Clarity Building Group has not necessarily worked with every architect listed. Each operates independently. We welcome collaboration with architects aligned with Radnor’s residential context.
Archer & Buchanan Architecture, Ltd
125 West Miner Street, West Chester, PA 19382 | (610) 692-9112 | archerbuchanan.com
Period Architecture, Ltd
53 Church Road, Malvern, PA 19355 | (610) 719-0101 | periodarchitectureltd.com
VMA (Voith & Mactavish Architects)
2401 Walnut Street, 6th Floor, Philadelphia, PA 19103 | (215) 545-4544 | voithandmactavish.com
John Milner Architects
104 Lakeview Drive, Chadds Ford, PA 19317 | (610) 388-0111 | johnmilnerarchitects.com
MAMO Architects
50 Rittenhouse Place, Ardmore, PA 19003 | (484) 412-8117 | mamoarch.com
Asher Slaunwhite + Partners (AS+P)
115 West Avenue, Suite 305, Jenkintown, PA 19046 | (215) 576-1413 | asparchitects.com
Peter Zimmerman Architects
828 Old Lancaster Road, Berwyn, PA 19312 | (610) 647-6970 | pzarchitects.com
John Toates Architecture and Design
914 North Valley Forge Road, Devon, PA 19333 | (484) 725-7978 | toatesarchitecture.com
Juliet Koczak Architect
Elm Avenue, Swarthmore, PA 19081 | (445) 234-4464 | koczak.com
R.A. Hoffman Architects
55 Plank Avenue, Paoli, PA 19301 | (610) 889-0660 | hoffman-architects.com
Northworks
8020 Germantown Avenue, Philadelphia, PA 19118 | (267) 669-0745 | northworks.com
PMcAD (P. McDonough Architecture & Design)
528 Kennett Pike, Fairville Village, PA 19317 | (484) 888-8084 | patmcdonougharch.com
Warren Claytor Architects
114 North Wayne Avenue, Wayne, PA 19087 | (610) 688-1744 | warrenclaytorarchitects.com
Related Projects
A NOTE ON FIT