Du Pont’s Private Sanctuary
The celebrated du Pont family’s love of golf spawned a secret 9-holer at Winterthur, later expanded and opened as Bidermann—a club dedicated solely to the game, where exclusivity meant tranquility and tradition took root.
The verdict
Delaware’s Private-Members Gem
Bidermann delivers a pure, historically rich Dick Wilson test on impeccable parkland turf. The 2024 Andrew Green renovation sharpened its classic lines and conditions, solidifying Bidermann as Delaware’s must-play private experience for those with an invite.
Course DNA
Difficulty
81
Scenery74
Conditioning89
Shot Variety77
Walkability79
Green Complexity83
Wow Factor71
Design Quality83
At a glance
Quick facts
Original estate origin
Started as du Pont family’s private 9-holer
Renovated in 2024
Comprehensive Andrew Green restoration
Rounds played yearly
Roughly 8,000 – low-traffic exclusivity
Course record
Set post-2024 renovation
Tree-lined design
Classic, mature parkland corridors
Rated Delaware’s No. 1 private
Per Golfweek 2025
Tee variety
Eight sets from 4,094 to 7,033 yards
US Amateur qualifying venue
Hosted recent USGA qualifiers
The design
The architecture
Bidermann is a showcase of Dick Wilson’s strategic parkland vision, revived for the modern game through Andrew Green’s historically faithful 2024 renovation. Routed across rolling, mature estate land, it blends classic tree-lined corridors with bold bunker forms and newly intensified green complexes. The result is a private club layout where angle, patience, and the ability to handle subtle approaches are rewarded—a place that tempts aggression but punishes carelessness with creatively contoured greens and fairways. Modernized irrigation and finely resculpted bunkers, together with nuanced fairway edges, have brought Wilson’s midcentury intent back to vivid life.
Wilson’s design DNA—prioritizing strategy over brute force—remains integral, with Andrew Green’s restoration emphasizing original intent while updating visuals and playability for today’s game.
Defining features
- Restored, classically contoured green sites
- Newly reshaped, artful bunkering
- Varied par-5 lengths and angles
- Strategic tree-lined playing corridors
- Rolling landforms with gentle elevation
- Generous yet demanding approach options
Hole by hole
Signature holes
Hole 2
The First Test
PAR
5
YARDAGE
506 yds
A risk-and-reward par 5 where the tee shot calls for a blend of placement and length, setting up a pivotal decision for the second. Pines pinch the fairway, so control is essential to hold the preferred angle into a subtly guarded green.
Play it smart
Favour the right half off the tee to open up the ideal angle; lay up smartly for a full wedge rather than risking it all on a long carry.
Where it bites
Slip too far left or press too hard for distance, and awkward lies or tree trouble will make par a fight.
Course management
Shots to think about
Long par-4 approach from the rough
Play safely to the fat side—short-side misses here are a recipe for bogey or worse.
Par-5 second shot with awkward yardage
Lay up to a comfortable wedge distance rather than forcing a risky long iron—angles matter.
Tight draw off the tee obstructed by trees
Trust a fade to the wider corridor; forcing a draw often finds trouble at Bidermann.
Fast, contoured downhill chip
Land it on the high shelf and let gravity do the work—don’t get aggressive chasing tight pins.
Approach to a green tucked behind a pond or new bunker
Play for the safe section of green, even if the pin tempts—a bogey beats a splash or plugged lie.
Final tee shot on 18 with nerves
Commit to your swing and club—tentative drives bring both trees and bunkers into play.
Putting from above the hole on recent Green-renovated surfaces
Be especially wary—catching the wrong edge turns a two-putt into a three (or four).
On the day
What to expect
Conditions
Lush, meticulously groomed, with firm, fair playing surfaces throughout the season.
Pace
Efficient, member-governed—expect a brisk round due to exclusivity and low daily counts.
Vibe
Quiet, traditional, and steeped in “insider” club spirit—not showy, but distinctly privileged.
Before you tee off
Your game plan
01
Brush up on classic iron play
Success comes from fairway positioning and disciplined approach shots—not brute force.
02
Sharpen green-reading skills
The recently revamped Wilson contours are subtle but exacting; expect quick, true rolls and devilish slopes.
03
Embrace walking
Bring comfortable shoes—Bidermann is best enjoyed on foot, thanks to established walking culture and inviting terrain.
04
Research local lore
Knowing Bidermann’s du Pont history and restoration story will deepen the experience as you walk in the founders’ footsteps.
The lore
How it came to be
- 1965
18-hole Bidermann Country Club opens, designed by Dick Wilson
- 1975
R. Jay Sigel wins Philadelphia Open at Bidermann by 12 shots
- 2002
Lester George leads restoration of Wilson features
- 2024
Andrew Green delivers full-course, historically attuned renovation
- 2025
Philadelphia Open returns, marking elite regional status
Stories & legends
What makes it special
A Championship Return
Fifty years after R. Jay Sigel’s commanding 12-shot victory, the storied Philadelphia Open returned in 2025, testing a new generation on Bidermann’s sharpened, restored fairways and greens.
Greens Reimagined, Legacy Retained
Andrew Green’s 2024 renovation respected Wilson’s classic blueprints while modernizing play with new bunkering, tees, and fairway lines—ushering in a new era without erasing Bidermann’s soul.
Course Record After the Revamp
Within two years of the revitalizing Andrew Green work, Bidermann’s competitive course record was rewritten—proof that the renovated layout challenges the best with fair, demanding shot values.
For the group chat
Fun facts
1
Founded by the du Pont family as a private estate course before it opened to a select membership
2
The only rule at the club’s founding: move balls out of flower beds—no penalty
3
R. Jay Sigel’s 1975 Philadelphia Open win at Bidermann remains legendary, with a record 12-shot margin
4
Bidermann is one of the United States’ least-played top private clubs, with only about 8,000 rounds per year
5
A fresh competitive course record was set immediately after the 2024 Andrew Green renovation
Build the trip
If you're making a Wilmington-area private club trip
CourseAccessWhy it's on the listTrip
Wilmington Country Club (South or North)
Private
Delaware’s other premier club; true championship pedigree and Tour/USGA heritage
DuPont Country Club
Private
Rich du Pont history and another pillar of Wilmington golf
Rock Manor Golf Course
Public
Best-known Wilmington-area public, modern redesign with accessibility and walkability
Downtown Wilmington or Brandywine Hundred for fastest access to all premier locals
Course DNA
If You Like Bidermann Country Club
Courses with the most similar DNA profile — matched by deviation shape across all eight playing characteristics.
Strong DNA Match8.2
Gulf Stream Golf Club
Delray Beach, FloridaWhy it matches: Gulf Stream Golf Club is a natural next stop after Bidermann Country Club: it a comparable balance of challenge, variety, and character.
Strong DNA Match8.8
Interlachen Country Club
Edina, MinnesotaConditioning
Why it matches: If Bidermann Country Club is your kind of course, Interlachen Country Club is worth a look because it puts the same premium on presentation.
Strong DNA Match7.8
Lexington Country Club
Lexington, KentuckyConditioning
Why it matches: There is real overlap here. Lexington Country Club offers similarly polished playing surfaces, making it a compelling counterpart to Bidermann Country Club.
The architect's other work
More from Dick Wilson
North Course at Wilmington Country Club
Wilmington, DEMajor Wilmington-area club, Wilson classic
Laurel Valley Golf Club
Ligonier, PAHosted the 1975 PGA Championship
Cog Hill Golf & Country Club (No. 4 Dubsdread)
Lemont, ILFamed public championship venue
La Costa Resort and Spa
Carlsbad, CAHost to multiple Tour and match play events
Community Sentiment
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