Tim Costello

Mechanicsburg PA

RE/MAX 1st Advantage

79 Closed Sales

$26.9M Total Value

$114.9K - $4.3M Price Range

$340.1K Average Price

Prior 5 years

About Tim

Associate Broker / Owner (31 years experience) Specialties: Buyer's Agent, Listing Agent, Relocation
Top 1% Greater Harrisburg Board of Realtors Top 25 In Pennsylvania and Delaware

Tim and Gene Costello aka Team Costello sell between 130 and 150 homes a year in the Central Pa market area. In 2006 Tim and Gene founded Remax 1st Advantage in Mechanicsburg. From over 100 offices in the Central, PA area, RE/MAX 1st Advantage is the #1 individual office.

Tim and Gene also own 1st Advantage Settlement Services, a licensed title Insurance agency, 1st Advantage Construction Management, and Team Costello Realty Property Management Division.

Home Types: House, MultiFamily, Townhouse, Commercial, Condo, Other

Years of Experience: 19

Education: HACC, Central Pennsylvania's Community College

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	17
Total Value	$5,480,901
Average Sale Price	$322,406
Price Range	$190K - $597K

Buyer Deals
Total Deals	12
Total Value	$3,719,318
Average Sale Price	$309,943
Price Range	$171K - $615K

1 Year View by Quarter

Seller Deals
Total Deals	20
Total Value	$6,340,401
Average Sale Price	$317,020
Price Range	$190K - $597K

Buyer Deals
Total Deals	17
Total Value	$5,551,318
Average Sale Price	$326,548
Price Range	$171K - $710K

Seller Deals
Total Deals	45
Total Value	$12,265,151
Average Sale Price	$272,559
Price Range	$115K - $800K

Buyer Deals
Total Deals	34
Total Value	$14,606,251
Average Sale Price	$429,596
Price Range	$140K - $4.3M

5 Year View

Neighborhoods Tim is Experienced In

Tim's Active Listings

$312,000
- 4 Beds
- 2.5 Baths
- 1,652 Sq Ft
1440 Walker Ave

Baltimore, MD
The buyer who gets this house is going to feel like they won. A powder room greets you off the front entrance before the main level opens up — living room with a fireplace, designer accent wall, and wide-plank flooring that pulls you straight into the kitchen. Waterfall quartz countertops, European-style cabinetry, stainless appliances, and a breakfast bar wide enough to actually use with direct

Tim Costello RE/MAX 1st Advantage

$299,950
- 3 Beds
- 2.5 Baths
- 1,534 Sq Ft
5905 Glenkirk Rd

Baltimore, MD
A house this nice at this price shouldn't exist. It's here...but for how long? The main level stops you before you get past the living room. A striking fireplace and generous windows pour natural light onto a galley kitchen with waterfall countertops, a breakfast bar, and modern European cabinetry. Upstairs, the primary suite has a walk-in closet and an en suite built around a curbless shower

Tim Costello RE/MAX 1st Advantage

Recently Sold

$358,000

Sold Jun 8, 2026
- 3 Beds
- 2.5 Baths
- 1,895 Sq Ft
5260 Mendenhall Dr

Mechanicsburg, PA
- $189/SF
- 19 Days On Market
- Current Est. Value $358K
Tim Costello RE/MAX 1st Advantage

$597,000

Sold May 28, 2026
- Studio
- 2,304 Sq Ft
142 & 150 Riddle Rd

Chambersburg, PA
- 5% Below List
- $259/SF
- 35 Days On Market
Tim Costello RE/MAX 1st Advantage

$210,000

Sold May 15, 2026
- 2 Beds
- 1.5 Baths
- 1,160 Sq Ft
18 Dartmouth Ct

Mechanicsburg, PA
- 1% Above List
- $181/SF
- 3 Days On Market
- Current Est. Value $207K
Tim Costello RE/MAX 1st Advantage

$232,000

Sold May 6, 2026
- 3 Beds
- 2.5 Baths
- 1,360 Sq Ft
616 Park Ridge Dr

Mechanicsburg, PA
- $171/SF
- Current Est. Value $235K
Tim Costello RE/MAX 1st Advantage

$280,000

Sold Apr 15, 2026
- 3 Beds
- 2.5 Baths
- 1,734 Sq Ft
2326 Mill Rd

Mechanicsburg, PA
- 2% Below List
- $161/SF
- Current Est. Value $285K
Tim Costello RE/MAX 1st Advantage

$309,000

Sold Apr 7, 2026
- 3 Beds
- 2 Baths
- 1,034 Sq Ft
3046 Heathcote Rd

Waldorf, MD
- 6% Below List
- $299/SF
- 36 Days On Market
- Current Est. Value $294K
Tim Costello RE/MAX 1st Advantage

$204,600

Sold Apr 1, 2026
- 3 Beds
- 1.5 Baths
- 1,210 Sq Ft
2941 Milky Way

Dover, PA
- 9% Above List
- $169/SF
- 2 Days On Market
- Current Est. Value $206K
Tim Costello RE/MAX 1st Advantage

$549,900

Sold Mar 18, 2026
- 4 Beds
- 2.5 Baths
- 2,302 Sq Ft
6009 Sommerton Dr

Mechanicsburg, PA
- $239/SF
- 16 Days On Market
- Current Est. Value $551K
Tim Costello RE/MAX 1st Advantage

$297,500

Sold Dec 22, 2025
- 3 Beds
- 2 Baths
- 1,020 Sq Ft
120 Haverhill Rd

Joppa, MD
- $292/SF
- 16 Days On Market
- Current Est. Value $287K
Tim Costello RE/MAX 1st Advantage

Agent License: Pennsylvania RM426073

Tim Costello

(717) 790-6024

Homes for Sale by City

Tim Costello

About Tim

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Tim is Experienced In

Tim's Listings and Deals

Tim's Active Listings

Recently Sold