$1,950,000
SOLD AUG 5, 2026
2 Beds
1 Bath
1,204 Sq Ft
8,984 Sq Ft Lot

Sale Details

Date Sold: August 5, 2026

$1,620 Per Sq Ft

15 Days on Market

Highlights

  • Detached Guest House
  • No HOA
  • Patio
  • Midcentury Modern Architecture
  • Circular Fireplace
  • 5-minute walk to Allendale Park

About This Home

As of August 2026

The Wallace Neff Shell House, carefully restored by its current owners with a commitment to preserving the integrity of Neff's original architectural intent, the residence remains a remarkably intact artifact of mid-century innovation.Set on an approximately 9,000-square-foot corner lot, the two-bedroom dome dwelling unfolds as a study in organic geometry and spatial efficiency. Beneath the curved shell, a circular half living room radiates from a central fireplace, flowing seamlessly into the kitchen and adjoining bath. The home's monolithic form blurs distinctions between structure and sculpture, embodying Neff's belief that architecture could be economical, resilient, and profoundly modern.In addition, the property includes an over 1,000-square-foot detached studio space, with submitted ADU plans in process with the city. This structure currently incorporates a large open public space, bath and separate bedroom. Further underscoring the property's historic significance is a rare Airform-constructed bomb shelter, added in the 60s, approximately 15 feet below the studio. Two patio outdoor seating areas, one nestled between the dome and detached studio space, the other positioned just outside the dome, are thoughtfully integrated within the surrounding gardens and gated drive.Originally conceived in 1947, The Shell House stands today as the sole surviving example in the United States of Neff's visionary Airform construction system. Also referred to as 'Bubble House,' a reinforced concrete construction, erected with an inflatable balloon and then sprayed with gunite, this experimental post-war housing concept fuses futurist engineering with sculptural domestic design. The Shell House represents a singular chapter in American architectural history, an extraordinarily rare convergence of preservation, experimentation, and design vision. A potential Mills Act candidate, if desired.

Last Agent to Sell the Property

George Penner

COMPASS Brokerage Phone: (626) 807-8558 License #01394929 Listed on: 05/19/2026

COMPASS

Last Buyer's Agent

Aram Gaboudian

Keller Williams Los Angeles License #01493911

Keller Williams Los Angeles

Range of Values:

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Value Increase
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Percent Increase
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Adjusted for Inflation
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Average Value
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List Price
Sold Price
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Home Details

Home Type

  • Single Family

Year Built

  • Built in 1947 | Remodeled

Lot Details

  • 8,984 Sq Ft Lot
  • Fenced
  • Sprinkler System

Parking

  • 2 Open Parking Spaces
  • 2 Car Garage
  • Parking Available
  • Tandem Uncovered Parking

Home Design

  • Midcentury Modern Architecture
  • Concrete Roof
  • Pre-Cast Concrete Construction
  • Stucco

Interior Spaces

  • 1,204 Sq Ft Home
  • Circular Fireplace
  • Concrete Flooring
  • Home Security System

Kitchen

  • Gas Oven
  • Dishwasher

Bedrooms and Bathrooms

  • 2 Bedrooms
  • 1 Bathroom

Utilities

  • Central Heating and Cooling System
  • Standard Electricity

Additional Features

  • Patio
  • Detached Guest House
  • Suburban Location

Community Details

  • No Home Owners Association
  • Laundry Facilities

Listing and Financial Details

  • Tax Lot 8
  • Assessor Parcel Number 5324005008

Home Details

Home Type

Single Family

Year Built

Built in 1947 | Remodeled

Lot Details

8,984 Sq Ft Lot

Parking

2

Listing Details

  • Structure Type: House
  • Assessments: No
  • Inclusions: Gas range / oven unit, refrigerator, dishwasher, washer, dryer, all wired light fixtures, red couches, black red table
  • Property Attached: No
  • Security: Security System
  • View: No
  • Architectural Style: Mid Century Modern
  • Property Condition: Updated/Remodeled
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Parcel Number: 5324005008
  • Year Built: 1947
  • Special Features: None

Interior Features

  • Fireplace: Yes
  • Living Area: 1204.00 Square Feet
  • Common Walls: No Common Walls
  • Flooring: Concrete
  • Appliances: Yes
  • Three Quarter Bathrooms: 1
  • Total Bedrooms: 2
  • Fireplace Features: Circular
  • Levels: One
  • Price Per Square Foot: 1619.60

Exterior Features

  • Patio: Yes
  • Other Structures: Guest House Detached
  • Fence: Yes
  • Pool Private: No
  • Roof: Concrete
  • Spa: No
  • Construction Materials: Concrete, Stucco

Garage/Parking

  • Attached Garage: No
  • Garage Spaces: 2.00
  • Parking: Yes
  • Parking Features: Tandem Uncovered
  • Total Parking Spaces: 4.00
  • Uncovered Spaces: 2.00

Utilities

  • Sprinklers: Yes
  • Heating: Yes
  • Laundry: Yes
  • Appliances: Gas Oven, Dishwasher
  • Electric: Standard
  • Heating Type: Central
  • Sewer: Public Sewer
  • Water Source: Public
  • Cooling: Central Air
  • Cooling: Yes

Condo/Co-op/Association

  • Association: No
  • Senior Community: No
  • Community Features: Suburban

Lot Info

  • Land Lease: No
  • Lot Size Sq Ft: 8984.00
  • Lot Size Acres: 0.2062

Multi Family

  • Lease Considered: No
  • Lot Size Area: 8984.0000 Square Feet

Tax Info

  • Tax Lot: 8

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Mar 25, 2025
Closed on
May 20, 2025
Sold by
Bought by
Seller's Agent
Crosby Doe
Crosby Doe Associates, Inc.
Buyer's Agent
Ilana Gafni
Crosby Doe Associates, Inc.
List Price
$1,850,000
Sold Price
$1,675,000
Premium/Discount to List
-$175,000
-9.46%
Views
176

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
12.81%
Original Mortgage
$750,000
Outstanding Balance
$739,619
Interest Rate
5.8%
Mortgage Type
New Conventional
Estimated Equity
$1,189,086

Purchase Details

Closed on
Apr 11, 2018
Sold by
Bought by

Purchase Details

Closed on
May 7, 1998
Sold by
Bought by
Source: Public Records

Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Agents Specializing in Madison Heights, CA

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Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Type Sale Price Title Company
Grant Deed $1,675,000 Lawyers Title
Interfamily Deed Transfer -- None Available
Grant Deed $262,500 Southland Title
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Loan Amount Loan Type
Open $750,000 New Conventional
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft Prior Sale
08/05/2026 08/05/26 Sold $1,950,000 0.0% $1,620 / Sq Ft
05/19/2026 05/19/26 For Sale $1,950,000 +16.4% $1,620 / Sq Ft
06/20/2025 06/20/25 Sold $1,675,000 -9.5% $1,241 / Sq Ft View Prior Sale
05/06/2025 05/06/25 Pending -- -- --
03/25/2025 03/25/25 For Sale $1,850,000 -- $1,370 / Sq Ft
Source: Pasadena-Foothills Association of REALTORS®

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2026 $5,556 $1,708,500 $1,020,000 $688,500
2025 $5,556 $447,360 $335,308 $112,052
2024 $5,219 $438,589 $328,734 $109,855
2023 $5,172 $429,990 $322,289 $107,701
2022 $4,995 $421,560 $315,970 $105,590
2021 $4,793 $413,295 $309,775 $103,520
2019 $4,617 $401,038 $300,588 $100,450
2018 $4,651 $393,176 $294,695 $98,481
2016 $4,490 $377,909 $283,252 $94,657
2015 $4,439 $372,234 $278,998 $93,236
2014 $4,354 $364,943 $273,533 $91,410
Source: Public Records

Agents Affiliated with this Home

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Map

Source: Pasadena-Foothills Association of REALTORS®

MLS Number: P1-27221

Pasadena-Foothills Association of REALTORS®

APN: 5324-005-008

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