John Martin
Development and construction
Builds community centered housing as a real estate development director, and runs Haggai Home's projects from first look to closeout.
Haggai Home · Building connected communities
Built meticulously.Every time.
Haggai Home is John Martin and Luke Santangelo. We develop and manage the construction of homes, mixed use buildings, and commercial space, and we run every job with the same discipline. What we save goes back into the next project and the neighborhood around it.
Bring us a siteOur mission
Every dollar savedis a dollar backin the community.
Construction is where most community projects lose money: missed steps, loose budgets, change orders nobody checked. We run construction efficiently and meticulously, every time, and we put what we save into rebuilding the community, project after project.
The men whodo the work.
About Haggai Home
Luke Santangelo
Finance and construction operations
Manages property and construction work, and keeps every budget, draw, and payment exact.
What we build
Homes, mixed use,and commercial space.
Homes
Single family homes, rowhouses, and multi unit buildings, new and rehabilitated.
Mixed use
Homes over storefronts that bring daily needs back within walking distance.
Commercial
Retail, office, light industrial, and community space, because connected communities need economic development as well as housing.
How we work
Our own engine,behind every decision.
We built the Haggai Engine to work the way we do. Every site gets the same treatment: zoning, flood, environmental conditions, cost, and the return to the city, on one record, with every number sourced. It is why two people can run projects with the precision of a much larger firm.
Conceptualize, Visualize, Realize
How we workConceptualize
01
Find the site.
One lot, touching lots assembled into one site, or scattered lots grouped into one package.
Conceptualize
02
Plan what fits.
A site plan under current zoning and under a proposed change, side by side.
Conceptualize
03
Prove the numbers.
The budget and pro forma come from the plan itself, with each funder's draw rules on the project from day one.
Visualize
04
Show what it can become.
Massing and renderings for clients, funders, and community meetings.
Realize
05
Manage the build.
Bids, contracts, and pay applications checked line by line, with draws that never exceed certified work.
Pay application 3
- Each line checked against the schedule of values
- Lien waivers received
- Retainage held
- Certified and added to the draw
Realize
06
Close it out and measure what it gave back.
Closeout, warranty, and the documents to sell, lease, or hold, with what the project returned reported.
Impact
Measured onevery project.
- 01Saved and reinvested
Dollars saved against the approved budget, and where they were reinvested.
- 02Employment pathways
Jobs and training hours created through construction.
- 03Return to the city
Tax revenue the project generates for its city.
Reporting begins with our first completed projects.
How we measure impactWherewe work.
Camden, New Jersey is our first market. Our method goes wherever a community is ready to rebuild: we load each city's zoning, tax rates, and programs and verify them before we advise.
- parcels mapped with their exact lot lines
- 31,146
- vacant lots on the tax roll, ready to screen
- 5,675
- corner lots identified from the street grid
- 3,298
- of lots matched to the street they face
- 94.8%
Camden, where we started. From the New Jersey statewide parcel layer and road centerlines, loaded October 2026.
Bring usa site.
We will show you what it can become, what it will cost, what it gives back to the community, and how we would build it.
Bring us a site