The Costa Group provides extraordinary service to elevate your life and bring you home.            


From San Francisco to Marin County we've sold 100's of homes and placed families of all shapes and sizes into Single Family Residences, Urban Dwellings, Penthouses, Condominiums, New Developments, Victorians, Edwardians, Apartments, Flats and Income Property.


We have an intimate knowledge of the City of San Francisco and the Marin County neighborhoods and amenities.  

From Noe Valley to Mill Valley, experience 'The Costa Groups' hands-on availability, involvement and concern for you and your lifestyle.



We are your partners, in listening, understanding and negotiating for you with our 30+ years of experience.  

All of our accolades and awards mean we continue to accomplish what we set out to do. To be the very best at representing you. That is our success.


With real estate partners throughout the San Francisco Bay Area, California, the United States and globally, we help our clients with all of their real estate needs. Wherever you may want to buy or sell, The Costa Group has a vetted partner to guide you. Just reach out!   

Exclusive Listings

Available Right Now!

Costa Group Listings BELOW


29 Bay Vista Drive, Mill Valley, CA 94941 | EXCLUSIVE OPPORTUNITY!


Offered at $2,995,000

Situated on over a third of an acre and tucked behind a private gate, this thoughtfully-renovated Mill Valley home is what dreams are made of. With panoramic views of the San Francisco skyline and the bay, mature gardens, and a remodeled chef's kitchen; Bay Vista is an ideal place for those who enjoy seamless indoor/outdoor living & entertaining.

The newly-remodeled chef's kitchen boasts designer finishes and massive island with breakfast bar. Unique features include Italian calacatta marble countertops, Heath Ceramics backsplash, farmhouse sink, locally-crafted floating wooden shelves, 6-burner gas range, pot filler, warming drawer, hot water dispenser, and more.

This private oasis is surrounded by greenery and nature, serving as a peaceful sanctuary in which take in the best of the Marin lifestyle. For those who love the outdoors, there’s a variety of activities within arm’s reach: hiking at Ring Mountain, strolling along the water & Blackie’s Pasture, biking the Bay Trail & Paradise Loop. With easy access to the 101, Golden Gate Transit and the Ferry for commuters, this Mill Valley home is in the perfect location for those driving into and out of the city.

The Home:

  • 5 sleeping rooms (4 bedrooms + study)

  • 3 bathrooms

  • Panoramic Bay and City views from almost all rooms in the house

  • Newly-remodeled chef's kitchen with designer finishes and massive island with breakfast bar. Unique features include Italian calacatta marble countertops, Heath Ceramics backsplash, farmhouse sink, locally-crafted floating wooden shelves, 6-burner gas range, pot filler, warming drawer, hot water dispenser, and more.

  • Hardwood flooring

  • Architectural features: open floorplan, vaulted ceilings and beams

  • 2-car garage + large driveway for 2 or more uncovered cars

  • Approximately 3120 square feet

  • Priced at $3.245M

The Land & Gardens:

  • Expansive, usable lot with 0.33 acres

  • Generous outdoor spaces including flat driveway, lush lawn and spacious deck -- great for playing & entertaining

  • Side deck off kitchen for barbecuing & dining al fresco

  • Southern exposure with abundant natural light throughout the day

  • Mature gardens including rosemary and fruit-bearing trees

  • Privacy, yet with everything at your fingertips from Ring Mountain hiking, strolling along the water, biking the Bay Trail & Paradise Loop, commuting to SF and everyday conveniences

The Area:

  • Strawberry, Mill Valley/Tiburon border

  • Walk to the neighborhood park (Cypress Hollow Park), Strawberry Village, Nugget Market, Blackie's Pasture, Peet's Coffee, and more

  • Convenient access to 101, Golden Gate Transit and Ferry for commuters

  • Award-winning Mill Valley schools


5222 Shelter Bay Avenue, Mill Valley, CA 94941 | JUST LISTED!


Offered at $795,000

Experience the ultimate in peaceful living with this 1 bedroom, 1 bathroom waterfront unit in the highly sought-after Shelter Bay community.

Featuring an open floor plan, loads of natural light and a multitude updates, there’s no shortage of things to love about this home. Recent flooring updates help to create a modern look to the space, while still maintaining its serene beauty and charm. The newly-remodeled kitchen with stainless steel appliances and bountiful cabinet space is sure to please any chef.

Relax on the private lanai, or soak up the gorgeous Marin weather while enjoying spectacular waterfront views from the deck. Easy commuter access to transportation & highway; and a short distance to Piatti, Shelter Bay Cafe, India Palace & Strawberry Village.

Essential Details:

  • 837 sq ft (per tax records)

  • Gorgeous water views

  • 6ft x 20ft private lanai (not included in square footage)

  • Open floor plan

  • New flooring

  • Large closets

  • Community pool

  • Tennis courts

  • HOA dues $625.49/month


450 Redwood Avenue, Corte Madera, CA 94925 | PENDING!


Offered at $1,295,000

Situated in Corte Madera’s desirable Christmas Tree Hill neighborhood, this captivating 3 bedroom, 2 bath home exudes East Coast cottage-inspired charm. The gray-shingled façade immediately enchants with its front facing deck, delightful stairway and welcoming entry that announces the warmth that awaits inside. 

Enter through the cordial red front door in to the open living/dining room that presents spectacular verdant Bay and Richmond Bridge views showcased through expansive windows. This open social space has direct access to a generously scaled deck with stunning vistas to savor seamless indoor/outdoor living. A crisp white palette throughout evokes serenity and calm.  The kitchen beautifully blends traditional appeal with contemporary finishes, displaying sleek updated Shaker cabinetry, subway tiles and stainless appliances. Skylights illuminate this culinary space with bright natural light and a washer/dryer is cleverly concealed at the back of the room. 

The master bedroom is a relaxing sanctuary filled with light. Both bathrooms continue the display of fresh whites and feature integrated sink vanities. The upper level is an idyllic retreat with a large landing area with a skylight that leads to a lovely cozy bedroom with angled ceilings.

The attractive landscaped, terraced grounds boasts a wonderful deck with a stone wall/patio accent to enjoy the best of outdoor entertaining. This delightful home offers charm, comfort, tranquility, all surrounded by lush natural beauty and Bay views and only moments away from downtown Larkspur and Corte Madera.


  • 3 Bedrooms | 2 Bath

  • Charming New England-inspired cottage

  • Open living/dining area with spectacular views & direct deck access

  • Fresh crisp white palette throughout

  • Contemporary kitchen with hints of tradition, updated Shaker cabinetry, subway tiles, cleverly concealed washer/dryer at back

  • Spacious master bedroom.

  • Both bathrooms boast fresh white finishes & integrated sink vanities

  • Enchanting guest bedrooms

  • Upper level cozy finished attic bonus space with large landing

  • Abundant storage throughout the home

  • Sensational yard with terraced landscaping, large deck with stone wall & patio

  • Nearby Larkspur & Corte Madera, public steps nearby for access to Magnolia Avenue, quick access to 101


901 Bush Street #502, San Francisco, CA 94109 | PENDING!


Offered at $599,000

Completely renovated in 2008, this historic building offers classic Nob Hill exterior architecture with a modern interior. Residence 502 features hardwood flooring, separate sleeping area, recessed lighting, in-unit washer & dryer, individual storage in the basement, and so much more! Stylish and sleek, the kitchen offers stainless steel appliances, custom cabinetry and Caesar Stone countertops.

The building boasts a stylish, modern lobby and 360 degree panoramic city views from the shared rooftop terrace. A short distance to incredible shops and restaurants, Union Square, cable cars and BART/Muni.

Essential Details:

  • Junior 1 bedroom/1 bathroom

  • 414 square feet

  • HOA dues - $401/month


  • Hardwood flooring

  • Stainless steel appliances

  • In-unit washer & dryer

  • Custom European kitchen cabinetry

  • Caesar Stone countertops

  • Close proximity to shops, restaurants and transportation

The Costa Group works with buyers and sellers across

Marin County, Wine Country and San Francisco.

Below are just a few of our most recent sales, listings and properties soon to hit the market.


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