For sale
$425,000
Est. $2,939/mo —
4
bd
•
2 ba
•
1,745
sq ft

21 Observation Site Rd, Conestoga, PA 17516

map-entry
Graph trending up
This home is popular
It's in the top 10% of views. Tour it before it's gone!

About this home

Single-familyProperty Type
1986Year Built
1.05 acresLot Size
$244Price/Sq.Ft.
1 garage spacesParking
Listed by Terry Grinestaff • Advanced Realty Services
•717-390-7080 (broker)
Listed by Wendy Grinestaff • Advanced Realty Services
•717-390-7080 (broker)
Listing updated:
Redfin checked: a minute ago
•Source:BRIGHT MLS #PALA2095964
11 days on Redfin • 176 views • 9 favorites

Payment calculator

$2,939 per month

Principal and interest$2,406
Property taxes
HOA dues
Home insurance
Utilities
Down payment
20% ($85,000)
Home price
$425,000
Loan details
30-yr fixed, 7.63%
5 minutes to get started. No credit impact. 

See this home in person

We'll connect you with a local agent to show you this home, answer your questions, and assist you on your buying journey.
Next available tour time: Tomorrow
Open houses
No upcoming open houses.

Around this home

Schools

Conestoga El School

Public K-6 • Assigned • 3.7mi

7/10
Marticville Middle School

Public 7-8 • Assigned • 5.1mi

7/10
Penn Manor High School

Public 9-12 • Assigned • 5.4mi

7/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Offer insights

21 Observation Site Rd · $425,000
$437K and above
75% chance or better to win
Why $437K+ is a strong offer
DAYS ON MARKET
12 days
The average home goes pending in 8 days.
SALE-TO-LIST
103.0%
Most homes are selling 3% above list price.
About offer insights

Property details

Kitchen

Kitchen

Bathroom

Bathroom

Bedroom

Bedroom

Living

Living

  • Interior features
  • Ceiling fans
  • Dining area
  • Family room off kitchen
  • Not furnished
  • Bedrooms
  • Four bedrooms on the main level
  • Bathrooms
  • Two full bathrooms (both on the main level)
  • Kitchen
  • Gas range/oven
  • Microwave
  • Refrigerator
  • Dishwasher
  • Laundry & utility
  • Washer and dryer
  • Main floor laundry
  • Flooring
  • Carpet
  • Hardwood
  • Vinyl
  • Heating & cooling
  • Heat pump(s)
  • Electric baseboard heating
  • Ductless / mini-split cooling
  • Electric hot water

Sale and tax history for 21 Observation Site Rd

Public record

Beds
3
Baths
2
Stories
1.7
Lot width
—
Lot depth
—
Lot size
1.05 Acres
Year renovated
—
Finished Sq. Ft.
1,744
Unfinished Sq. Ft.
—
Total Sq. Ft.
1,744
Year built
1986
Style
Single Family Residential
County
Lancaster County
APN
4105265600000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 18, 2026.

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 100° expected this year, 15 days in 30 years

4/10 Wind Factor

16% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Conestoga, PA • 17516
Average low and high temperatures (°F)
35
21
40
26
59
37
67
46
72
54
83
64
88
69
81
62
78
59
68
46
56
38
41
27
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

97/ 100

Exceptional sunlight

Sunscore

This home ranks in the top 16% for direct sun exposure in Conestoga. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

10.4 hrs
6.6 hrs
JuneDecember
Provided by Shadowmap

Redfin Estimate for 21 Observation Site Rd

We cannot show automated home-value estimates for this home. 
 

Nearby homes have recently sold between $275,000 and $415,000.

Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $275K to $415K.

Tour for free, no strings attached

Details provided by BRIGHT MLS and may not match the public record. Learn more.
Download the Redfin App on the Apple App Store
Download the Redfin App from the Google Play Store
GreatSchools Ratings provided by GreatSchools.org.