ADU Consulting

Pre Development & Pre Construction Services


A successful build project is dependent upon open and seamless communication and trust 

between the client/architect/builder team.

Our pre construction services lays the foundation for that teamwork.

Thinking of building an ADU in Princeton? 

We can help.

In 2020 Princeton passed it's ADU ordinance, and updated it in 2022. (While still rare in NJ, there are also ADU ordinances in Montclair, East Orange and Bradley Beach.) 

We 'll guide you through the process of designing and building based on the restrictions and requirements of Princeton's ordinance; develop cost estimates; select professionals, and more.


Our Pre-development services include:



Our Pre-construction services include:


Real Estate Development Due Diligence

Don’t spend money on professional design and engineering services until you’ve conducted your Real Estate Development due diligence.


There are many non-construction conditions that will impact a property development’s overall cost, and these need to be factored to get a true ‘build cost’. That is Real Estate Development Due Diligence, and includes:



Then you can develop the hard and soft costs associated with Site Work and Build Cost

All of which varies greatly based on size, grade of materials, and the amenities included.


That list includes:

Soft Costs: Feasibility study, Design, Engineering, Legal, Zoning/ Engineering/ Const Permit fees, COAH fees, sewer application fee, utilities hook up fees, road repaving, septic design,

Hard Costs: Demolition work. Site work; septic/sewer installation, well digging/water hookup, storm water mgmt, excavating foundation, grading, final landscaping. Build cost; from foundation to roof.

Understand and manage construction costs before incurring costly design and engineering fees.

Here are some of the ways we help homeowners understand and manage construction costs: