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3645 Marlborough Ave AveSan Diego, CA 92105

For Sale

$959,000

Smart Buyer Rebate $9,590

Charming single-story home featuring 2 bedrooms and 2 bathrooms, thoughtfully remodeled throughout and situated on a spacious lot with a generously sized front yard. The property also includes a converted garage studio/apartment complete with a living area, 1 bedroom, full kitchen, and full bathroom, offering excellent flexibility for extended family, guests, rental income, or a private workspace. An outstanding investment opportunity with strong future development potential, including the possibility to build multiple units.

Listed by Jorge Alvarez

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License #02047054

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Compass

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jorge@jorgealvarezsandiego.com

Listed by Peter Shelton

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License #01944609

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Compass

Last updated May 18, 2026

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Source: CRMLS #PTP2603480

Listing Facts

  • TypeSingle-family
  • NeighborhoodCastle
  • Bedrooms3
  • Bathrooms3
  • Days on Prevu131
  • Size1,000 sqft
  • Price per sqft$959

Amenities

  • Air Conditioning
  • Swimming Pool

Location

Mortgage Calculator

Listing History

07/21/2026
Status changed to Active
$959,000
05/24/2026
Status changed to Withdrawn
$959,000
05/20/2026
Price Decreased
$959,000
05/07/2026
Listed by Compass
$989,000
  1. 07/21/2026$959,000
    Status changed to Active
  2. 05/24/2026$959,000
    Status changed to Withdrawn
  3. 05/20/2026$959,000
    Price Decreased
  4. 05/07/2026$989,000
    Listed by Compass

Property Details for 3645 Marlborough Ave Ave

Association

Amenities

  • Community Features: Sidewalks

General

  • Number Of Units In Community: 1

Exterior

Construction

  • Stories: 1
  • Stories Total: 1
  • Year Built: 2022
  • Common Walls: No Common Walls
  • Entry Level: 1
  • Entry Location: 1

Measurements

  • Lot Size Acres: 0.08
  • Lot Size Area: 3,685
  • Lot Size Dimensions: 3,685
  • Lot Size Source: Public Records
  • Lot Size Square Feet: 3,685
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 4541720900

Interior

Measurements

  • Living Area: 1,000
  • Living Area Source: Owner

Rooms

  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 3

Schools

High School

  • High School District: San Dieguito Union

Utilities

Equipment

  • Cooling: Central Air, Wall/Window Unit(s)
  • Has Cooling: Yes
  • Laundry Features: Inside

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 3 bedrooms and 3 bathrooms in this single-family home at 3645 Marlborough Ave Ave.

How does 3645 Marlborough Ave Ave compare to other single-family homes in Castle?

This single-family home is listed 14% above the average price for single-family homes in Castle and has been on the market for 61 more days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 1,000 sqft.

3645 Marlborough Ave Ave is a 3-bedroom, 3-bath single-family home for sale in San Diego CA 92105. Listed on Prevu for 131 days at $959,000. This includes a recent price decrease of $30,000. This residence features 1,000 square feet of living space, located in Castle. The median listing price for single-family homes in this area is $800,000. The home offers air conditioning and swimming pool. Browse more single-family home listings in San Diego.

Based on information from California Regional Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.