85 King St, Mill Valley, CA 94941
OFF MARKET

85 King St
Mill Valley, CA 94941

Blithedale Canyon
  • 3 Beds
  • 3.5 Baths
  • 2,756 sqft

$3,217,700

Trulia Estimate
as of May 14, 2026
Est. Refi. Payment $19,089/mo*
Refinance Your Home

$3,217,700

Trulia Estimate
as of May 14, 2026
Est. Refi. Payment $19,089/mo*
Refinance Your Home
3 Beds
3.5 Baths
2,756 sqft

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

Gracious Costigan home located in the desirable Blithedale Canyon...Spacious home with classic Costigan charm and beautiful details.Street to street lot with adorable cottage in the garden...could be play house, studio or office. 3 beds, 3 1/2 bathrooms, open Kitchen, formal dining room, lg living room with open beam ceiling, beautiful fireplace with decks all around, large family room with fireplace.Beautiful established gardens & stone patios.
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.

Home Highlights

Parking
Garage
Outdoor
Deck
A/C
Heating only
HOA
None
Price/Sqft
No Info
Listed
No Info

Home Details for 85 King St

Interior Features

Interior Details
BasementNumber of Rooms: 8Types of Rooms: Dining Room
Heating & Cooling
Heating: OtherHeating Fuel: Other
Levels, Entrance, & Accessibility
Stories: 3
Fireplace & Spa
Fireplace

Exterior Features

Exterior Home Features
Roof: Shake ShingleDeckExterior: Stucco, Wood
Parking & Garage
GarageParking: Garage Attached

Property Information

Year Built
Year Built: 1959Year Updated: 1961
Property Type / Style
Property Type: Single Family HomeArchitecture: Contemporary

Community

Units in Building: 1

Lot Information

Lot Area: 8276 sqft

Price History for 85 King St

DatePriceEventSource
03/29/2019$2,345,000Sold
N/A
03/06/2019$2,495,000PendingAgent Provided
02/15/2019$2,495,000Listed For SaleAgent Provided
11/05/2004$1,300,000Sold
N/A
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Property Tax and Assessment

Year2025
Tax$34,324
Assessment$2,724,089
Home facts updated by county records

Comparable Sales for 85 King St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
239 W Blithedale Avenue, Mill Valley, CA
0.14
Single-Family Home
$2,550,000
06/26/25
3
2
2,260
27 Cottage Avenue, Mill Valley, CA
0.16
Single-Family Home
$2,450,000
10/01/25
3
3
2,046
334 W Blithedale Avenue, Mill Valley, CA
0.07
Single-Family Home
$2,450,000
04/23/26
4
2.5
2,034
222 Marguerite Avenue, Mill Valley, CA
0.26
Single-Family Home
$2,616,000
01/12/26
4
5
2,925
2 Marsh Drive, Mill Valley, CA
0.22
Single-Family Home
$2,310,000
11/17/25
4
2.5
2,512
484 Summit Avenue, Mill Valley, CA
0.30
Single-Family Home
$2,180,000
03/27/26
5
3.5
2,748
402 Eldridge Ave, Mill Valley, CA
0.14
Single-Family Home
$3,110,000
08/29/25
4
4
2,955
108 Eldridge Avenue, Mill Valley, CA
0.31
Single-Family Home
$3,150,000
04/14/26
5
2.5
2,703
29 Portola Lane, Mill Valley, CA
0.27
Single-Family Home
$2,200,000
09/04/25
3
2
1,514
19 Cushing Drive, Mill Valley, CA
0.13
Single-Family Home
$2,500,000
11/13/25
4
3
2,502

Assigned Schools

These are the assigned schools for 85 King St.
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Neighborhood Overview

Blithedale Canyon
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Blithedale Canyon

At least 20 Trulia users voted on each feature.

  • 96 % Say it's dog friendly

  • 91 % Say it's walkable to restaurants

  • 91 % Say car is needed

  • 90 % Say there's wildlife

  • 88 % Say it's walkable to grocery stores

  • 87 % Say people would walk alone at night

  • 86 % Say yards are well-kept

  • 79 % Say there's holiday spirit

  • 75 % Say it's quiet

  • 73 % Say parking is easy

  • 71 % Say they plan to stay for at least 5 years

  • 68 % Say there are community events

  • 65 % Say kids play outside

  • 64 % Say neighbors are friendly

  • 29 % Say streets are well-lit

  • 27 % Say there are sidewalks

Learn more about our methodology.
  • Alex V.
    "No sidewalks. Not a lot of flat lots. Not many parks outside of old Mill. Streets are windy and not well lit. "
    0
    Flag
  • Gayle Delaney
    "Like most of my neighbors, I have lived in this sunny and magical home and town for many years (32) and am leaving only to live part-time in Italy and with family in Florida. The extraordinary Redwood forest beauty of our town and our ease of being active neighbors for all sorts of causes and activities is wonderful. Our easy access to hours and hours of local, state and national hiking rail systems is hard to believe since we are so close to San Francisco!"
    9
    Flag
  • Pat H.
    "Love being able to hike Mt Tam from my doorstep. Love the wine and food festival every June downtown mill valley. Best wines and restaurants showcase their best offerings."
    0
    Flag
  • Annestuartbricca
    "I have lived in Mill Valley for 3 years and also work for the City of Mill Valley. This is an amazing city to live, work and play in. The trails and open spaces near and on Mt. Tam make some of the most beautiful views in the world accessible by bike or foot. The community is rich in cultural arts and entertainment. I enjoy the quiet refuge of my home in the hills after a day in the bustling downtown area. The parks are pristine and the community center has an indoor pool, brand new gym, dance studio, large/elegant banquet hall and many meeting/classroom spaces that you can rent for affordable prices. While Mill Valley has a reputation for being “stuck up”, “snotty” and “entitled”, I have not experienced this. I do pay an arm and a leg to live here, but in my opinion it is worth every penny and I have never regretted my decision to move here. The Mill Valley City Council is very responsive to citizen ideas, complaints and suggestions, making residents feel as though they have a voice in building the future of MV. With close proximity to San Francisco and Napa, you are in a great spot to travel and get away when you want. I will rent here until I am ready to buy a home somewhere more affordable."
    0
    Flag

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Apartments for Rent

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Homes for sale near 85 King St

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Off Market Homes Near 85 King St

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Explore by feature

85 King St, Mill Valley, CA 94941 is a 3 bedroom, 4 bathroom, 2,756 sqft single-family home built in 1959. 85 King St is located in Blithedale Canyon, Mill Valley. This property is not currently available for sale. 85 King St was last sold on Mar 29, 2019 for $2,345,000. The current Trulia Estimate for 85 King St is $3,217,700.