Old Line Construction Inc
Construction company in Dunkirk, MD 20754
About this company
Old Line Construction Inc is listed as a construction company based in Dunkirk, Maryland, in Calvert County. Federal motor carrier records list 4 drivers and 6 trucks for the company. It is one of 9 general contractors in ZIP 20754.
Other construction companies nearby
C & C Mechanical Contractors2755 Chesapeake Beach Rd W, Dunkirk
(301) 812-1385
Old Line Construction2972 Penwick Ln Suite 201, Dunkirk
(410) 286-0644
Turulo General Contracting LLC2175 Regent Ct, Dunkirk
(301) 442-8353
Housing market around ZIP 20754
Figures describe the local area, not this company.
Typical home value$628,000+0.3% past year · +46% in 10 years
12-month value outlook+0.3%Roughly flat
Days to sale agreement19Washington metro · 17 a year ago
New homes permitted, 2025157Calvert County
Listings with a price cut29.4%Washington metro
Sale price vs list99.7%Washington metro
New construction sales489Washington metro, Aug · −24% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Calvert County permitted 157 new homes in 2025, including 35 apartment units. 26% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.