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Single Family ResidenceResidential
$355,281$342 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

4228 OSBORN RD

BORING, MD 21020
1
Baths
1,040 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1.01 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$355K
$303K low$408K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,175 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$281,833 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$245,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$353,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Split Foyer
CountyBaltimore
Lot (acres)The size of the land the home sits on, from county records.1.01
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 120 ft²Shed · 1,200 ft²Patio · 144 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Franklin Middle SchoolC-
Middle · Grades 6–8 · 4.7 mi
E
Franklin Elementary SchoolB
Elementary · Grades EE–5 · 4.9 mi
H
Franklin High SchoolC+
High · Grades 9–12 · 5.6 mi

District: Baltimore County Public Schools

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

4228 Osborn Rd measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Costs more per square foot than 93% of homes in Baltimore County
  • Smaller than 87% of homes in Baltimore County
  • Has a bigger lot than 89% of homes in Baltimore County
  • Newer than 70% of homes in Baltimore County

What homes are worth in Baltimore County

Each bar is how many homes fall in that price range. The marker is this home.

This home
$297K$773K

This home is worth more than 36% of homes in Baltimore County.

How it measures up in Baltimore County

The dot is this home. The mark in the middle is the typical home in Baltimore County.

Estimated value$355,281
CheaperTypical $355,800Pricier

Pricier than 50% of homes nearby

Price per ft²$342
CheaperTypical $231Pricier

Pricier than 93% of homes nearby

Living area1,040 ft²
SmallerTypical 1,472 ft²Bigger

Bigger than 13% of homes nearby

Lot size1.01 ac
SmallerTypical 0.17 acBigger

Bigger than 89% of homes nearby

Year built1986
OlderTypical 1964Newer

Newer than 70% of homes nearby

How 4228 Osborn Rd ranks against every home in each area.
MeasureThis homeBaltimore County
Estimated valuepricier than$355,28150% of homes
Price per ft²pricier than$34293% of homes
Living areabigger than1,040 ft²13% of homes
Lot sizebigger than1.01 ac89% of homes
Year builtnewer than198670% of homes

About 4228 Osborn Rd

How much is 4228 Osborn Rd, Boring, MD worth?

The TopHap Estimate for 4228 Osborn Rd, Boring, MD is $355,281 as of Aug 30, 2026. The likely range is $302,834 to $407,728. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4228 Osborn Rd, Boring, MD last sell?

4228 Osborn Rd, Boring, MD last sold on Jan 9, 1992, according to the county's recorded deed.

How big is 4228 Osborn Rd, Boring, MD?

4228 Osborn Rd, Boring, MD has 1 bathrooms, 1,040 square feet of living space and a 1.01-acre lot.

When was 4228 Osborn Rd, Boring, MD built?

4228 Osborn Rd, Boring, MD was built in 1986, making it 40 years old. It is a split foyer home. The building has 1 story.

What schools serve 4228 Osborn Rd, Boring, MD?

4228 Osborn Rd, Boring, MD is assigned to Franklin Middle School (middle), rated C-; Franklin Elementary School (elementary), rated B; Franklin High School (high), rated C+. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4228 Osborn Rd, Boring, MD compare to other homes in Baltimore County?

Among the 259,439 homes in Baltimore County, it is worth more than 50% of them ($355,281 against a typical $355,800), its price per square foot is higher than 93% of them ($342 against a typical $231), it is bigger than 13% of them (1,040 ft² against a typical 1,472 ft²), its lot is bigger than 89% of them (1.01 ac against a typical 0.17 ac) and it is newer than 70% of them (1986 against a typical 1964). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 4228 Osborn Rd, Boring, MD?

The 2025 property tax bill for 4228 Osborn Rd, Boring, MD was $3,175. The county assessed it at $281,833.

More homes on Osborn Rd

Closest homes

More homes in Boring 21020

Assigned schools

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