What Cornerstone Development does

Cornerstone Development, LLC is a privately held residential homebuilder founded in 2000 and headquartered in Sussex, Wisconsin. The company develops and sells ranch-style condominium communities and single-family residences across Waukesha, Ozaukee, and Milwaukee counties in southeastern Wisconsin, currently operating eight active communities (Aspen Overlook, Quarry Park, The Glen at Broadlands, The Glen at Pewaukee Lake, The Glen at Standing Stone, The Glen at Stonewall Farms, The Glen at Wanaki, and The Grove in River Hills). Its product platform consists of two branded home series - the Lifestyle Series (prairie-design-inspired 2-3 bedroom ranch condominiums, 1,650-2,100 sq ft) and the Dublin Series (duplex and double-duplex condominiums with premium finishes) - with pricing ranging from the high $400,000s to over $1 million per home, depending on community and floor plan.

The core technology component is physical construction rather than software: the company delivers low-maintenance condominium product with included lawn care, snow removal, and exterior maintenance; standardized amenity packages (clubhouses, swimming pools, pickleball and bocce courts, walking paths, ponds, dog parks, and conservancy areas); and turn-key purchase packages that include site, driveway, irrigation, and landscaping. Sales enablement uses digital channels including 3D virtual tours and NterNow self-guided tour hardware, supported by a physical Design Studio for finish selection. A network of building-supplier partners (Kohler, Midwest Tops, Nonn's Kitchen Bath & Flooring, Countryside Cabinets, Zuern, ABC Supply, Drexel Building Supply) and trade contractors (Squared Away Builders, Dave Jones, Interstate Heating) executes construction.

The business model is one-time real estate sales of newly built homes to individual owner-occupant buyers. GTM is sales-led: dedicated sales consultants work leads from a website with detailed community pages, physical model homes open Friday-Sunday and by appointment, and self-guided tours enabled by NterNow. Customer mix is concentrated in active adults, retirees, and move-down buyers seeking low-maintenance single-level living, plus families seeking amenitized condominium communities. Revenue is not publicly disclosed; scale signals include 339 GuildQuality reviews at 4.8/5 average and 25+ years of continuous operation.

Name

Cornerstone Development

Legal name

Cornerstone Development, LLC

Website

https://cornerstonedevelopment.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

11–50 employees

Short description

Cornerstone Development, LLC is a privately held homebuilder developing ranch-style condominium communities and single-family residences across southeastern Wisconsin. The company serves active adults, retirees, and move-down buyers seeking low-maintenance, amenitized homes through eight currently active communities.

Ownership category

akta.pro rank

Product category

Residential Real Estate Development

NAICS

New Housing For-Sale Builders (236117), Residential Building Construction (23611)

SIC

Land Subdividers & Developers (No Cemeteries) (6552), Real Estate Dealers (For Their Own Account) (6532)

akta.pro primary industry

Spec Home / Production Homebuilding (Tract & Volume Builders) (IMAFABAD)

akta.pro secondary industries

Residential Land Development & Subdivision Homebuilding (Build-to-Sell Communities) (IMAFABAL), New Construction & Builder Sales (BPAJAAAB)

Keywords

• Ranch-style condominiums
• Residential homebuilder
• Single-family construction
• Condominium community development
• Low-maintenance homebuilding

Headquarters

HQ city

Sussex

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. New Home Sales: Cornerstone Development generates revenue through the sale of new ranch-style condominiums and single-family homes. Their revenue is derived from one-time home purchases where buyers own their individual units and parcel of land within condominium communities. The company builds communities across southeastern Wisconsin and sells homes directly to buyers through their sales team and model homes.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels9 records

Core offering

Cornerstone Development builds and sells ranch-style condominiums and single-family residences across southeastern Wisconsin. The company develops turn-key residential communities that include homes, sites, driveways, irrigation, and landscaping, complemented by shared amenities such as clubhouses, pools, pickleball and bocce courts, walking paths, and dog parks. Buyers can purchase move-in ready homes, build-to-order homes, or use self-guided and virtual tours to select from a portfolio of floor plans across two named product lines: the Lifestyle Series and the Dublin Series.

Product overview

Cornerstone Development is Southeast Wisconsin's preeminent developer and builder of ranch-style condominium communities and single-family homes, with 25 years of industry experience. The company operates as a unified home building and development company rather than a software platform. Their portfolio consists of two main product lines: the Lifestyle Series (prairie-design-inspired ranch condominiums with 2-3 bedrooms) and the Dublin Series (duplex and double duplex condominiums with premium finishes). They currently market 8 distinct residential communities across southeastern Wisconsin (The Glen at Broadlands, The Glen at Pewaukee Lake, The Glen at Standing Stone, The Glen at Stonewall Farms, The Glen at Wanaki, The Grove in River Hills, Aspen Overlook, and Quarry Park). Home models include The Aspen, The Birch, The Bristol, The Calli, The Connelly, The Cypress, The Donovan, The Finnegan, The Hawthorne, The Hawthorne II, The Heather, The Juniper, The Kenzie, The Laurel, The Leyland, The Sequoia, The Sycamore, The Tartan, The Willow, The Brighton, and The Bailey. The company supports home buyers with services including open model homes, move-in ready homes, self-tour homes (via NterNow technology), and 3D virtual tours.

Differentiator

Problem solved

Functional benefit

Products and services

• Aspen Overlook (Waukesha) Ranch-style condominium community in Waukesha offering Lifestyle Series homes ranging from 1,650-1,900 sq ft with private community dog park and turn-key purchase packages including site, driveway, irrigation, and landscaping. Starting in the high $400,000s.
• Quarry Park (Cedarburg) Coming soon condominium community in Cedarburg with lots available, situated in a historic mill town near the Milwaukee River.
• The Glen at Broadlands (North Prairie) A 16-acre community within the Broadlands Golf Course offering 60 duplex and double duplex-style condominiums with thoughtfully designed open-concept floor plans. Homes start in the low $600,000s and include a concrete patio or composite deck.
• The Glen at Pewaukee Lake (Pewaukee) One of Cornerstone's most popular and fastest-growing communities, featuring 44 standalone ranch-style homes (1,600-2,100 sq ft) with condominium services and a clubhouse with pickleball and bocce courts. Home and lot packages start in the mid $700,000s.
• The Glen at Standing Stone (Waukesha) A Waukesha neighborhood offering duplex/double duplex condominiums and single-family standalone homes (1,700-2,000 sq ft) with walking paths, community pond, swimming pool, clubhouse, and pickleball and bocce courts. Homes start in the mid $600,000s.
• The Glen at Stonewall Farms (Grafton) An 81-acre community featuring 88 condominiums with Dublin Series ranch-style floor plans, a clubhouse with pool, pickleball courts, and multiple lookout exposure and 3-car garage options. Available homes range from $639,999 to $684,999.
• The Glen at Wanaki (Menomonee Falls) A premier collection of 52 single-family standalone homes (1,888-2,749 sq ft) with condominium-like services in Menomonee Falls. Home and lot packages start in the upper $700,000s, with the Finnegan model priced at $1,049,999. Includes a community clubhouse with pool, pickleball, and bocce courts.
• The Grove in River Hills (River Hills) An exclusive north shore community of 51 ranch-style standalone homes (1,900-2,800 sq ft) with included lawn service, snow removal, and limited maintenance. Features a 28-acre conservancy area, clubhouse, pool, pickleball courts, and putting greens. Launched in 2025.
• Lifestyle Series A line of prairie-design-inspired ranch-style condominiums featuring clean, open, bright designs with lofty ceilings and abundant windows. Offers 2 and 3 bedroom single-level floorplans with open concepts and options for a sunroom or den.
• Dublin Series A collection of duplex and double duplex condominiums known for visually exciting interior and exterior design, superior construction materials, and airy open-concept layouts that combine timeless elegance with modern sophistication.
• Design Studio Customization Design Studio experience at the Sussex headquarters where buyers work with design specialists to select finishes, cabinetry, flooring, countertops, and other customization options for their homes.

Quantifiable outcome

• 4.8 out of 5 stars average customer rating based on 339 GuildQuality reviews
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

13 partnerships are on record, tiered core and supporting.

• KohlercoreOthersKohler provides kitchen and bathroom fixtures and fittings for Cornerstone Development homes. As a premium plumbing manufacturer, Kohler's products contribute to the high-end finishes offered in Cornerstone communities.
• Midwest TopscoreOthersMidwest Tops provides countertop surfaces for kitchens and bathrooms in Cornerstone homes, offering granite, quartz, and other solid surface options for home customization.
• Nonn's Kitchen Bath & FlooringcoreOthersNonn's provides kitchen, bath, and flooring products and installation services for Cornerstone communities, offering comprehensive interior finish solutions.
• Squared Away Builders, Inc.coreOthersGeneral contracting partner for Cornerstone Development construction projects, building homes across various communities.
• Zuern Building Products & Design CentercoreOthersZuern provides building products and operates a design center where Cornerstone buyers can explore options for their homes, offering a comprehensive selection of building materials and design services.
• ABC Supply Co., Inc.supportingOthersABC Supply provides roofing, siding, and other exterior building materials for Cornerstone communities.
• Coello & Associates, Inc.supportingOthersProfessional services partner possibly providing engineering, architectural, or land development services for community projects.
• Country Stove & FireplacesupportingOthersProvides fireplace and hearth products for Cornerstone homes, offering premium heating options and ambiance features.
• Countryside CabinetscoreOthersCustom and semi-custom cabinetry provider for kitchens and bathrooms in Cornerstone homes.
• Dave Jones, Inc.supportingOthersMechanical contractor providing HVAC, plumbing, and other mechanical systems installation for Cornerstone communities.
• Drexel Building SupplysupportingOthersBuilding materials supplier providing lumber, hardware, and construction materials for home building.
• Guthrie & Frey Water Conditioning, LLCsupportingOthersWater treatment and conditioning systems provider for Cornerstone homes, offering water softening and filtration solutions.
• Interstate Heating Co., Inc.supportingOthersHeating, ventilation, and air conditioning contractor providing HVAC installation and service for Cornerstone communities.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Regional players

• Summit Homes: Midwest homebuilder serving Kansas City and surrounding regions with planned communities and ranch-style product. Comparable in product mix and community-development approach, though operating in a different regional market than Cornerstone.
• ICI Homes: Regional homebuilder active across the Sun Belt with active-adult and family community product lines. Comparable in planned-community model and ranch-style offerings, though geographically distinct from Cornerstone's Wisconsin footprint.

Broad incumbents

• M/I Homes: National public homebuilder with planned communities across the Midwest, Mid-Atlantic, and Southeast. Comparable in new-construction sales-led GTM and product positioning for move-up and move-down buyers, though at substantially greater scale.
• Toll Brothers: National luxury homebuilder with extensive active-adult (Toll Brothers at Heron Lakes) and move-down product lines. Comparable premium price points and amenity-rich community model, though far larger and more geographically diverse.
• Shea Homes Trilogy: National builder of active-adult (55+) resort-style communities. Comparable in product specialization for active adults, amenity-driven community design, and ranch-style floor plans, with broader geographic reach than Cornerstone.
• Del Webb: National active-adult homebuilder (PulteGroup brand) with 55+ communities across the U.S. Most directly comparable in targeting the active-adult/retiree ranch-style buyer with amenity-rich communities, though operating at much larger national scale.

Direct peers

• Halen Homes: Southeastern Wisconsin homebuilder offering single-family homes in planned communities across Waukesha and surrounding counties. Directly overlaps with Cornerstone's ranch-style, amenity-driven community model and target buyer segments.
• Veridian Homes: Wisconsin homebuilder developing new home communities across the Milwaukee-Madison corridor. Comparable in community-planning approach, sales-led GTM, and new-construction product range serving similar regional buyers.
• Tim O'Brien Homes: Wisconsin-based homebuilder with active-adult and family home communities in the Milwaukee metro area. Comparable in operating geography, new-construction sales model, and focus on energy-efficient, quality-built homes in planned communities.
• Bielinski Homes: Long-established Wisconsin homebuilder serving the greater Milwaukee and southeastern Wisconsin markets with new construction homes in planned communities. Directly comparable geographic footprint, product positioning, and target buyer (move-up and move-down).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/CornerstoneDevelopmentLLC
• LinkedInlinkedin.com/company/cornerstone-development--llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cornerstone Development