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L7 Principal DevelopmentGeneral contractor in Hayward, CA

L7 Principal Development is a general contractor at 860 E Lewelling Blvd, Hayward, CA 94541, rated 5.0 from 1 Google review. Open Monday to Friday.

Hayward, CA0 paid placements in any rankingHow we rank

Call (415) 990-2139Website ↗

Key facts

Key facts about L7 Principal Development
Address860 E Lewelling Blvd, Hayward, CA 94541Get directions
Phone(415) 990-2139
Websitel7principaldevelopment.com
HoursMonday: 9 AM – 5 PM; Tuesday to Friday: 8 AM – 4 PM
Google rating5.0 from 1 Google review

Trades

Each trade shows the evidence we matched it on.

  • General Contractingmain tradeGoogle main category

Service area

Serves Hayward and 11 towns within 25 miles: Ashland, Cherryland, San Lorenzo, Castro Valley, Fairview, San Leandro, Union City, Dublin, San Ramon, Alameda and Moraga.

Based in Hayward, CAView on map

Opening hours

Opening hours for L7 Principal Development
DayHours
Monday9 AM – 5 PM
Tuesday8 AM – 4 PM
Wednesday8 AM – 4 PM
Thursday8 AM – 4 PM
Friday8 AM – 4 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical general contracting prices

Typical general contracting prices
JobLowTypicalHigh
Kitchen remodelPer project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.04 Pacific factor (2025 Cost vs. Value Report)$15,240$28,190$43,470
Bathroom remodelPer bathroom: typical range of customer-reported remodels. US national range × 1.06 Pacific factor (2025 Cost vs. Value Report)$7,050$12,880$18,720

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 1 Google reviews

Hired L7 Principal Development? Write a review

Questions about L7 Principal Development

What are L7 Principal Development’s hours?

L7 Principal Development is open Monday to Friday. Its listed hours are Monday, 9 AM – 5 PM; Tuesday to Friday, 8 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does L7 Principal Development serve?

Serves Hayward and 11 towns within 25 miles: Ashland, Cherryland, San Lorenzo, Castro Valley, Fairview, San Leandro, Union City, Dublin, San Ramon, Alameda and Moraga. The list is based on the business's location and the usual service radius for general contracting. Confirm your address is covered when you call.

What do Google reviews say about L7 Principal Development?

L7 Principal Development has a rating of 5.0 from 1 Google review. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact L7 Principal Development?

Call L7 Principal Development on (415) 990-2139. The business is at 860 E Lewelling Blvd, Hayward, CA 94541. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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