Sea-Dar Construction

Construction company in Boston, MA 02118

Call (617) 423-0870 seadar.com Directions

About this company

Sea-Dar Construction is listed as a construction company at 580 Harrison Ave in Boston, Massachusetts, in Suffolk County. Federal motor carrier records list 2 drivers and 2 trucks for the company. It is one of 19 general contractors in ZIP 02118.

Other construction companies nearby

Union Park Construction104 Union Park St, Boston

0.1 mi(508) 649-4957

Shawmut Design and Construction560 Harrison Ave, Boston

0.1 mi(617) 622-7000

CIC Energy Construction & Supply535 Albany St Ste 200, Boston

0.2 mi(617) 398-7473

Marathon Development LLC500 Harrison Ave, Boston

0.2 mi(617) 536-3500

Venegas and Company477 Harrison Ave, Boston

0.2 mi(617) 439-8800

Fleet size

Drivers2

Trucks2

Last federal filing: Mar 2026. Source: FMCSA.

Strong market, balanced fieldArea profitability for construction in ZIP 02118

Housing demand75

Sales pace, new listings and new construction. Source: Zillow

Customer spending power89

Household income and home values

Room for another contractor59

Less crowded than 59% of US ZIPs

Scored against every US ZIP. An index of local conditions, not this company's results.

County context

One of 421 general contractors in Suffolk County, MA.

59 concrete and masonry companies in Suffolk County, MA.

All 801 construction companies in Suffolk County, MA.

ZIP 02118 at a glance

Population: 28,946 (10,275 per sq mi)
Median age: 37
Households: Median income $98,224 · 50% earn six figures
Housing: 32% owner-occupied
Workforce: 64% labor-force participation · 6.3% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Housing market around ZIP 02118

Figures describe the local area, not this company.

Typical home value$962,000+1.9% past year · +17% in 10 years

Typical rent$3,805+2.7% past year

12-month value outlook+0.8%Roughly flat

New homes permitted, 20252,338Suffolk County

Days to sale agreement14Boston metro · 15 a year ago

Listings with a price cut23.7%Boston metro

Sale price vs list101.3%Boston metro

New construction sales302Boston metro, Aug · +23% 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: Suffolk County permitted 2,338 new homes in 2025, including 2,078 apartment units. 21% of the homes in this ZIP were built since 2000.

Local figures are estimates from public records and Zillow housing data, updated regularly.