280 Sierra Dr, Walnut Creek, CA 94596, USA

Property CA
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1

Property Overview:

280 Sierra Dr is a single-family home in Walnut Creek, CA, built in 1952. It features 3 bedrooms, 2 bathrooms, and 1,740 sq. ft. of living space. The home includes a parking garage. The estimated home value is $751,400.

Neighborhood Highlights:

  • Crime Rate:

    • Personal crime risk: 4.6% (lower than state average of 11.8%).
    • Property crime risk: 6.5% (lower than state average of 10.8%).

  • Schools:
    Nearby schools include Las Lomas High, Walnut Heights Elementary, and Walnut Creek Intermediate.

    • Average SAT score: 1136 (higher than state average of 975).

  • Job Market:

    • 73.8% white-collar jobs, 26.2% blue-collar jobs.
    • Unemployment rate: 2.4% (lower than state average of 4.7%).

  • Demographics:

    • Community population: 44,032 (16.9% growth since 2000).
    • 55.2% families with children.
    • Largest age group: 25-34 years (17.73%); second largest: 45-54 years (15.45%).

  • Natural Disaster Risk:

    • Low flood risk, low tornado risk, high earthquake risk.

  • Weather:

    • Average temperature: 42.3°F (January), 71.6°F (July).
    • Average rainfall: 27.2 inches/year.
    • Average snowfall: 0 inches/year.

  • Cost of Living:

    • Median household income: $78,802.
    • Average annual spending: $58,414.

Property Features:

  • Beautifully updated after a permitted rebuild (post-fire).
  • Flexible floor plan with 3 bedrooms (including a spacious primary suite), formal dining area, and bonus space off the living room (ideal for reading, music, or a second sitting area).
  • Remodeled kitchen: New cabinets, countertops, appliances, and flooring.
  • New interior paint and refinished hardwood floors.
  • All-new electrical wiring and new roof (per contractor).
  • ADU potential:
    • Large bonus room off kitchen (possibly original garage) with closet could serve as a studio ADU.
    • Full-size 2-car attached garage.
    • Large lot with side yard access—ample room for a detached ADU, RV, boat, or special vehicle.

Location Benefits:

  • Blocks from vibrant downtown Walnut Creek: Access to top-rated schools, popular shops and dining, and the Iron Horse Trail.
  • Open House:
    • Saturday, May 10, 1:00–4:00pm
    • Sunday, May 11, 1:00–3:00pm
  • Photos available May 9.
  • So many possibilities—don’t miss this one!
2

Price and Status History

date type price
2019-10-02 Off Market NaN
2019-10-05 For Sale NaN
2020-12-15 Sold 1450000
2020-12-23 Sold 983750
2020-12-31 Sold 1250000
2021-01-04 Sold 1085000
2021-01-07 Sold 665000
2021-01-11 Sold 1250000
2025-05-07 For Sale 1375000
3

Superfund Enterprise Management System

SITE NAME ADDRESS FEDERAL FACILITY NPL STATUS NON-NPL STATUS CONTAMINANTS SEMS EPA ID DISTANCE (MILES)
VARIAN ASSOCIATES WALNUT CREEK DIV 2700 Walnut Boulevard, Walnut Creek, CA 94596-4764, USA N N DR 0 CAD009448382 0.5

Toxic Release Inventory

No data found within 1.0 miles for this property.

Integrated Compliance Information System - Air

No data found within 1.0 miles for this property.

4

Flood Risk Info

fld_zone very high impact: up to 0.0001 miles high impact: up to 0.2 miles moderate impact: up to 0.5 miles low-moderate impact: up to 1.5 miles
A 0 1 5 11
AE 0 0 6 28
AH 0 0 0 0
AO 0 0 0 0

Flood Zone Type

code meaning
A 1% annual chance flood zone determined using approximate methods. No BFEs shown. Flood insurance and management standards apply.
AE 1% annual chance flood zone determined by detailed methods. BFEs shown. Insurance and floodplain management required.
AH Shallow flooding (ponding) zones with depths between 1-3 feet. BFEs shown. Insurance and management required.
AO Shallow flooding (sheet flow) zones with depths 1-3 feet. BFEs or average depths shown. High-velocity areas may exist.

Earthquake Risk Info

zone_name quad_name very high impact: up to 0.0001 miles high impact: up to 2.0 miles moderate impact: up to 10.0 miles
Concord/Green Valley Clayton 0 0 1
Concord/Green Valley Diablo 0 0 0
Concord/Green Valley Vine Hill 0 0 1
Concord/Green Valley Walnut Creek 0 0 2
Northern Calaveras Clayton 0 0 0
Northern Calaveras Diablo 0 0 1
Northern Calaveras Vine Hill 0 0 0
Northern Calaveras Walnut Creek 0 0 0

Landslide Risk Info

lscat very high impact: up to 0.0001 miles high impact: up to 0.04 miles moderate impact: up to 0.1 miles low-moderate impact: up to 0.2 miles
8 0 0 0 0

Liquefaction Risk Info

Suscept very high impact: up to 0.0001 miles high impact: up to 0.05 miles moderate impact: up to 0.5 miles low-moderate impact: up to 1.0 miles
High 0 0 0 0
Very high 0 0 1 2

Wild fire Risk Info

haz_class very high impact: up to 0.0001 miles high impact: up to 0.5 miles moderate impact: up to 1.5 miles low-moderate impact: up to 3.0 miles
High 0 0 0 1
Very High 0 0 0 1
5

Traffic Noise by Hour x Weekday

Not enough data points

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Airplane Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 1 1 1 1 1 1 1
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2 1 1 1 1 1 1 1
3 0 1 1 1 0 0 1
4 1 1 1 0 1 1 1
5 1 1 1 1 1 1 1
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9 3 3 3 4 4 4 2
10 4 2 3 4 3 5 3
11 3 3 4 3 5 4 4
12 5 3 3 3 4 3 3
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14 3 5 4 4 4 4 4
15 3 4 5 3 3 3 3
16 3 3 2 4 2 3 2
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18 2 2 2 3 2 2 2
19 3 3 2 3 2 1 2
20 2 1 2 2 1 1 1
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22 1 1 1 1 1 1 1
23 1 1 1 1 1 1 1