Goltermann Real Estate and Construction

What Goltermann Real Estate and Construction does

Goltermann Real Estate and Construction is a privately held, family-owned firm founded in 1963 that operates an integrated real estate brokerage and construction business in California's North Bay, primarily serving Marin, Sonoma, and Napa Valley counties. The company offers a unified platform combining full-service residential brokerage (buying, selling, and property exploration) with design, construction, remodel, and luxury custom home services, including ground-up rebuilds and major renovations. Its product surface includes a property listings database, branded luxury developments such as Corte Morada and Altura Way in Greenbrae, and multi-campus commercial work for clients including Muir Wood Adolescent and Family Services. The firm runs an in-house design team with drafting and interior design capability, plus project management for new construction, pre-design planning, permitting, and post-construction support.

The business model blends transaction-based revenue (brokerage commissions on residential sales, with listing prices observed from approximately $500,000 to $3,525,000) with project-based revenue from construction and remodeling contracts, including one-off commercial campus builds. Pricing is quote-based per project and not publicly disclosed. Go-to-market is direct and relationship-led, leveraging 60+ years of local reputation, personal referrals, the firm's website (goltco.com), property listings/MLS exposure, and email/newsletter communications. Customer segments center on high-net-worth residential buyers, sellers, and developers seeking luxury properties, with a secondary segment of homeowners and investors seeking pre-sale home improvements to maximize resale value. Leadership is family-driven: Casey Goltermann serves as Owner, Broker, and Developer, supported by a small team including an Operations Manager, Project Manager, Realtor/Interior Designer/Draftsman, and a fourth-generation Realtor.

The firm reports no external funding, no institutional investors, and no parent company. Operational scale is small (5 named professionals within an 11-50 employee band), with offices in Petaluma and Mill Valley, CA. The technology stack is standard for the segment, hosted on the Luxury Presence platform, and incorporates generative AI for marketing content and predictive analytics for property recommendations, with no proprietary AI assets or developer-facing APIs.

Name

Goltermann Real Estate and Construction

Legal name

Goltermann Construction & Real Estate

Website

https://goltco.com

Company type

Private

Founded year

1963

Operating status

Operating

Headcount range

11–50 employees

Short description

Family-owned integrated real estate brokerage and construction firm founded in 1963, serving high-net-worth residential and select commercial clients across Marin, Sonoma, and Napa Valley in California's North Bay.

Ownership category

akta.pro rank

Product category

Residential Real Estate Brokerage and Construction Services

NAICS

Offices of Real Estate Agents and Brokers (53121), New Housing For-Sale Builders (236117), Residential Remodelers (236118)

SIC

Real Estate Agents & Managers (For Others) (6531), General Bldg Contractors - Residential Bldgs (1520), Operative Builders (1531)

akta.pro primary industry

New Construction & Builder Sales (BPAJAAAB)

akta.pro secondary industry

Residential Land Development & Subdivision Homebuilding (Build-to-Sell Communities) (IMAFABAL)

Keywords

• Residential real estate brokerage
• Luxury home construction
• Custom home remodeling
• Property development
• Real estate sales

Headquarters

HQ city

Mill Valley

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Supply Chain, Infrastructure

Revenue model

1. Real Estate Brokerage Commissions: Traditional real estate commission-based revenue from buying and selling residential properties in Marin, Sonoma, and Napa Valley areas.
2. Construction and Remodeling Services: Design, construction, and remodeling services for residential properties, including luxury custom homes, major remodels, and large-scale renovations.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Goltermann Real Estate and Construction operates an integrated residential real estate brokerage alongside an in-house construction and remodeling firm, founded in 1963. The company sells and buys residential properties and also performs ground-up custom home construction, major remodels, and interior design services for clients across Marin, Sonoma, and Napa Valley counties in Northern California. It additionally develops small-scale residential projects such as the Corte Morada and Altura Way communities.

Product overview

Goltermann Real Estate and Construction is a full-service real estate brokerage and construction company offering a unified platform of residential property services in Marin, Sonoma, and Napa Valley areas. The core offering combines Goltermann Real Estate Company (full-service brokerage for buying and selling properties) with Construction & Remodel Services (design, new construction, and renovation) and Luxury Custom Homes (ground-up builds and major remodels). The company also operates a Property Listings Database as a listing platform. The portfolio includes distinctive property sub-brands such as Corte Morada, Altura Way, and Muir Wood Campuses (commercial development including Lorhman Lane and Skillman campuses for Muir Wood Adolescent and Family Services). The company has been serving Sonoma and Marin Counties since 1963.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Real Estate Brokerage Licensed residential real estate brokerage providing buy-side and sell-side representation, listing marketing, and transaction management for homes throughout Marin, Sonoma, and Napa Valley counties.
• Custom Home Construction Ground-up custom home building service for individual homeowners, leveraging the firm's in-house design and drafting team to deliver design-build projects from concept to completion.
• Home Remodeling and Renovation Whole-home remodeling, additions, and renovation services for existing homeowners, coordinated by in-house project management and design resources.
• Interior Design and Drafting In-house interior design and architectural drafting services that support both brokerage staging advice and construction projects, allowing clients to work with one team from concept through finishes.
• Residential Development Projects Small-scale residential developer offerings, including named communities such as Corte Morada and Altura Way, where the firm acquires, designs, builds, and sells new homes.

Quantifiable outcome

• Over 100 homes personally purchased, remodeled and sold by Casey Goltermann

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature1 record

Partnerships

Two partnerships are on record, tiered core and major.

• Advanced Building SolutionscoreStrategic or Co-development PartnerGoltermann Construction partners with Advanced Building Solutions for luxury custom home construction and major renovation projects. Collaborative projects include Corte Morada in Greenbrae, Bretano Way rebuilds, and Glenwood Ave transformation in Mill Valley. The partnership delivers ground-up rebuilds and comprehensive construction services with builder's warranties included.
• Muir Wood Adolescent and Family ServicesmajorOthersGoltermann Construction has developed multiple Muir Wood campus facilities including Lorhman Lane North and South Campuses, and Skillman North and South Campuses for behavioral health services. Projects include construction of modern farmhouses, learning centers, recreation facilities, and sports amenities.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Vanguard Properties: Bay Area luxury real estate brokerage specializing in high-end residential sales across San Francisco and Marin. Directly comparable to Goltermann's luxury brokerage offering in the North Bay.
• Hill & Company Real Estate: Long-established Marin County luxury real estate brokerage with deep local roots and a focus on high-end residential sales. Closest comparable on geography and luxury brokerage positioning to Goltermann's Marin/Sonoma service area.
• Pacific Union International: Bay Area luxury real estate firm serving high-net-worth buyers and sellers across San Francisco, Marin, and Wine Country. Comparable luxury positioning and overlapping North Bay geography.
• SummerHill Homes: Bay Area residential developer building luxury and market-rate for-sale communities across the Peninsula and North Bay. Comparable to Goltermann's build-and-sell development activity.
• The Agency: Luxury-focused real estate brokerage operating across California with significant Bay Area presence. Comparable on luxury residential brokerage and high-net-worth clientele.
• Davidon Homes: Bay Area residential homebuilder developing and building luxury for-sale homes across Northern California. Comparable on the construction/development side of Goltermann's integrated model.
• McGuire Real Estate: Bay Area luxury real estate brokerage with a long history serving affluent buyers in San Francisco, Marin, and beyond. Closely comparable luxury residential brokerage positioning.

Broad incumbents

• Coldwell Banker: Global residential real estate brand with deep agent networks across Marin, Sonoma, and Napa. Competes broadly for luxury listings in the same North Bay submarkets.
• Compass: Tech-enabled national real estate brokerage with major presence in Marin, Sonoma, and Napa. A much larger incumbent competing for the same luxury residential listings and agents.
• Sotheby's International Realty: Global luxury brokerage affiliate network with strong Bay Area and Wine Country presence. Competes for high-end listings and HNW clientele in the same geographies.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/casey.goltermann
• LinkedInlinkedin.com/company/casey-goltermann-18443229

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 Goltermann Real Estate and Construction