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4233 Costello Avenue, Sherman Oaks, CA 91423

$3.60M5bd · 7ba · 5,251 sqft
Lot 6,994 sqft•Single Family Residence•
Active
•34d on market•MLS# 00-26984849

Property Description

Located on a premier residential street in the heart of Sherman Oaks, 4233 Costello Avenue is a masterfully designed modern residence that seamlessly pairs high-end privacy with an enviable, walkable lifestyle. Set behind imposing security gates and just steps from the area's premier restaurants, boutiques, and fitness studios, this 5-bedroom, 7-bathroom (5 full and 2 half) multi-level residence offers over 5,200 square feet of uncompromisingly luxurious living space. Beyond the architectural solid-wood pivot door, a light-filled formal living and dining area - defined by soaring ceilings, walls of glass, a custom glass wine enclosure, and the sculptural silhouette of a floating staircase-creates an exquisite atmosphere for sophisticated entertaining. Completing the front of the residence, a custom-tiled guest powder bath and a versatile main-floor en-suite bedroom - currently tailored as an office - feature a full bath and a private deck overlooking mature magnolia trees. At the rear of the home, an expansive kitchen and family great room center around a custom fireplace, an integrated surround sound system with an in-wall subwoofer, and Fleetwood glass sliders that open directly to the yard. The kitchen is curated for both function and scale, featuring a rare double island, a large walk-in pantry, extensive premium cabinetry, and a dramatic book-matched quartz accent above the stove. Complete with an elegant breakfast area, this space delivers a sense of volume and refined quality typically found in much higher-priced estates. Serving as the 1st of the home's 3 distinct levels, the lower level adds exceptional versatility, featuring a 2-car garage equipped with an EV charging station (complemented by 2 additional spaces in the driveway) finished with black epoxy floors and custom built-ins for showcasing your autos, along with a convenient half bath and a dedicated home theater. Climate-controlled by 2 HVAC systems that separate the top floor from the lower 2 levels, the upstairs features a wide, airy hallway connecting a laundry room to 4 independent en-suite bedrooms. Each suite features large picture windows with automated Shade Store shades and spa-like bathrooms with custom tilework and floating vanities. The primary suite serves as a secluded sanctuary, complete with high ceilings, a luxurious dual-sided fireplace shared between the bedroom and bath, a large walk-in closet, and an opulent porcelain bathroom featuring a soaking tub and an oversized frameless glass shower. Directly off the primary bedroom is one of the property's most distinctive features: a nearly 800-square-foot private, turfed terrace (not included in the official square footage), which is the perfect setting for a personal wellness retreat, with ample room for a sauna, cold plunge, and lounging area. From here, a private exterior staircase leads to the resort-caliber backyard, which includes a zero-edge infinity pool with a sun deck, and a manicured play area with a built-in BBQ. Designed for modern convenience, the entire estate operates as a fully integrated smart home, offering seamless WiFi control over the Nest thermostats, Ring and DVR home camera systems, Lutron lighting, pool, sprinklers, and localized Sonos speakers. Offering exceptional scale, bespoke amenities, and a coveted location, 4233 Costello Avenue stands out as a preeminent opportunity for luxury living in Sherman Oaks.

Features & Amenities

FeeBuilt 2018

Property Details

Land Type
Fee
Year Built
2018
Property Type
Residential
Property Subtype
Single Family Residence
Heating
Central
Cooling
Central Air
Flooring
Tile, Wood
City
Sherman Oaks
Zip Code
91423
County
Los Angeles
Listed byCompass, Alan Taylor

Mortgage Calculator

Current Rates

$
$
%
Monthly Payment
$18,198.50
Principal & Interest
Loan Amount
$2,879,200
Total Interest
$3,672,261
Total Payment Over 30 Years
$6,551,461
This calculator provides estimates only. Actual mortgage payments may include taxes, insurance, HOA fees, and PMI. Contact a lender for accurate quotes.

Comparative Market Analysis

Luxury Tier · 5 active · 5 closed

4233 Costello Avenue, Sherman Oaks, CA 91423

Sherman Oaks · Single Family Residence

$3.60M
Luxury Tier
Beds
5
Baths
7
Sqft
5,251
Lot
6,994 sqft
Year
2018
$/Sqft
$685
Pool: Yes✓
Spa: Yes✓
Garage: 2-car✓

Listed 5.9% above the median closed sale of $3,400,000. Luxury tier — fewer comparable sales widen the confidence range.

Price Position

Positioned above the market — commands a premium.

Premium
Subject listed at $3.60M· $685/sqft
Total list price
Closed comps
vs closed median $3.40M
+$199K (+5.9%)
Active comps
vs active median $4.20M
−$596K (−14.2%)
Price per sqft
Closed compsinsufficient comp data
Active comps
vs active avg $/sqft $854
−$169 (−19.8%)

Active Properties (5)

Active Comparables

AddressCityYearBDBTHSqFtLotSzLP/SqFtLPDIMScore
4005 Dixie Canyon AvenueSherman Oaks2019575,0005,505$860$4.30M685
4521 Mary Ellen AvenueSherman Oaks2026574,8128,108$956$4.60M6685
15447 HustonSherman Oaks2026565,0118,256$837$4.20M583
4926 Nagle AvenueSherman Oaks2026574,5106,945$819$3.69M3977
4273 Murietta AvenueSherman Oaks2026674,7006,997$797$3.75M1277
Total: 5 · Average5.26.84,806.67,162.2$853.8$4.11M25.6
Median4,812$4.20M

Closed Properties (5)

Closed Comparables

AddressCityYearDateBDBTHSqFtLotSzLPSPSP/SqFtSP/LPDIMScore
14813 Mccormick StreetSherman Oaks202607/07/2026664,7588,052$3.79M$3.40M$7150.9014580
14812 Morrison StreetSherman Oaks201907/31/2026574,5209,451$3.45M$3.38M$7490.982479
4628 Saloma AvenueSherman Oaks202607/15/2026564,6587,425$3.70M$3.65M$7840.993174
13470 Rand DriveSherman Oaks200005/28/2026564,4207,192$2.50M$2.50M$5661.009573
4170 Sunnyslope AvenueSherman Oaks202506/05/2026674,6308,007$4.49M$4.42M$9560.997872
Total: 5 · Average5.46.44,597.28,025.4$3.47M$3.47M$754—74.6
Median4,630$3.40M$3.40M

Market Analysis

List vs Sale $/SqFt

Sale Price Trend

Days on Market

Sale vs List Price

AI-generated CMA

This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.