
Custom Homes, Additions & Thoughtful Renovations in Devon
Devon offers a refined blend of Main Line tradition and understated elegance, where stone colonials, early 20th century estates, and thoughtfully updated carriage homes sit comfortably along corridors like Lancaster Avenue and near landmarks such as the Devon Horse Show grounds and Jenkins Arboretum. The architectural character here leans into timeless materials like Wissahickon schist, painted brick, and slate roofing, often paired with gracious setbacks and mature landscaping that shape a sense of quiet continuity. Clarity Building Group appreciates how projects in Devon require both respect for these established patterns and a nuanced approach to modern living, whether through seamless additions or carefully detailed interior renovations. Each project is guided through the Tredyffrin Township building department and coordinated with township oversight, ensuring that design intent aligns with local standards while preserving the integrity that defines Devon’s streetscapes.
Architectural Highlights Throughout Devon
The homes referenced are not built, renovated, or restored by Clarity Building Group but are shared as representative examples of Devon’s architectural heritage and craftsmanship that inspire our work.
Hillside Farm: 1178 Pebble Spring Drive
- Architect/Builder Duo: R. Brognard Okie (Architect & Owner)
- Project Summary: This was the personal homestead of R. Brognard Okie and serves as the quintessential example of the Pennsylvania farmhouse style. Built and expanded over decades using local mica schist and salvaged historical materials, it established the architectural "DNA" for much of the high-end residential growth in the Tredyffrin-Easttown area.
- See where it is on Google Maps

Grey Craig: 680 Wetherby Drive
- Architect/Builder Duo: William Lightfoot Price (Architect) / Main Line Construction Syndicate
- Project Summary: Originally built in 1902 as a hunting lodge for paper magnate James Patterson, this estate is a masterwork of the Arts and Crafts movement. Despite the subdivision of its original 76 acres, the main fieldstone residence remains an anchor of the neighborhood, known for its soaring gables and intricate masonry.
- See where it is on Google Maps

The Okie Masterpiece: 501 S Waterloo Road
- Architect/Builder Duo: R. Brognard Okie (Architect)
- Project Summary: Designed in 1902, this 7,000-square-foot Colonial Revival estate is one of Okie’s most expansive early works. It features his signature "wall dormers" and a dramatic center hall staircase, representing the height of craftsmanship that defined the "Country House" era for Philadelphia’s industrial elite.
- See where it is on Google Maps

Glenays: 156 S. Devon Avenue
- Architect/Builder Duo: Wilson Eyre (Architect) / Stacy Reeves & Sons (Builder)
- Project Summary: Designed in 1888 for Barclay H. Warburton (publisher of the Philadelphia Evening Telegraph), Glenays is a tour de force of Wilson Eyre’s "picturesque" style. The residence is celebrated for its sprawling, horizontal massing, dramatic stone chimneys, and seamless integration into the rolling Devon hillside. Its construction marked a shift in the Main Line from rigid, vertical Victorian boxes toward the more organic, "home-grown" aesthetic that would define the American Country House movement.
- See where it is on Google Maps

A LIST OF RESPECTED CUSTOM BUILDERS IN DEVON
Finding Your Fit: Selecting a Builder Based on Your Project Goals and Team Structure.
1. Estate-Scale Custom Home Builders
These firms specialize in high-end homes and estate properties that define Devon’s residential landscape.
Best Suited For:
- Luxury custom residences
- Architect-driven estate homes
- Projects with detailed finish requirements
2. Custom Renovation and Addition Specialists
These builders focus on transforming existing homes while maintaining architectural consistency.
Best Suited For:
- Refining and expanding older homes
- Integrating new construction with existing forms
- Structural upgrades
- Long-term renovation planning
3. Design-Build Firms
Design-build companies manage design and construction within one team structure.
Best Suited For:
- Clients seeking simplicity in process
- Projects requiring early coordination
- Homeowners open to internal design services
WHAT IT MEANS TO BUILD AND RENOVATE IN DEVON
Devon, Pennsylvania is characterized by early 20th-century Main Line residences including Colonial Revival, Tudor, and stone Georgian homes, often set on generous lots with mature landscaping, alongside mid-century infill and carefully scaled additions. Construction and renovation work frequently engages with load-bearing masonry, aging slate or cedar roofs, and legacy systems requiring thoughtful integration of modern HVAC, insulation, and moisture control without compromising historic fabric. Builders must navigate Tredyffrin Township’s zoning ordinances, historic district considerations in adjacent areas, and detailed permitting processes governing setbacks, stormwater management, and tree protection.
WORKING WITH ARCHITECTS IN DEVON
Choosing a Design Partner That Matches Your Vision
Devon is known for its estate properties and refined residential architecture, often requiring architects with experience in large-scale homes and carefully detailed renovations. The right fit depends on your design direction, project scope, and expectations for budget planning. Early alignment helps establish clarity and supports a well-coordinated team.
Design Firms Shaping Homes in Devon
Architects in Devon are typically engaged directly by homeowners prior to selecting a builder. Clarity Building Group often joins during design development, collaborating with independently selected architects to bring projects into construction. Below are several firms active in and around Devon. Reviewing their work can help determine alignment with your goals.
Please note: Clarity Building Group has not necessarily collaborated with every architect listed. Each operates independently. We welcome opportunities to work with architects aligned with Devon’s architectural tradition.

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
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A NOTE ON FIT












