Cornerstone Architectural Group, LLC

Cornerstone Architectural Group, LLC Single point of responsibility, concept to completion. When experience matters most.

Cornerstone Architectural Group brings 35+ years and 2,300+ projects to integrated architecture, engineering, interiors & construction administration across New Jersey.

Not every employee works the same way — so we didn't design the office that way either.Ramboll's Princeton office gives ...
08/21/2026

Not every employee works the same way — so we didn't design the office that way either.

Ramboll's Princeton office gives people a real choice: energized circulation spaces with bold color and texture, collaborative "incubate" zones for mentorship and knowledge-sharing, and quiet, focused "catalyze" areas for deep work. Neuroinclusive design was a priority from day one — activated social spaces are balanced with calmer, more private ones, so people can move between them depending on how they work best.

Take the full tour here: https://www.cornerstoneag.com/rambolls-princeton-office-redefines-the-hybrid-workplace

Soft costs — the fees, permits, technology, furniture, financing, and contingency that sit on top of construction — can ...
08/19/2026

Soft costs — the fees, permits, technology, furniture, financing, and contingency that sit on top of construction — can add 20 to 35% to your project's real cost.

Add escalation on top of that, and a budget number from three years ago can fall short by another 25% or more. Tariffs, supply chain pressure, and labor costs don't pause while you're finalizing plans.

We've seen a client's grant money cover barely half the building it once would have — because the number they were working from had quietly expired.

A feasibility study grounded in today's market data is the only way to know what your project actually costs to build, before you commit to a design you can't afford.

Read the full breakdown here: https://www.cornerstoneag.com/construction-cost-vs-project-cost-what-owners-need-to-understand

What actually makes people want to come back to the office?That's the question Ramboll asked us to help answer at their ...
08/14/2026

What actually makes people want to come back to the office?

That's the question Ramboll asked us to help answer at their Princeton office. Instead of a return-to-office mandate, we designed a workplace prototype built around wellbeing, flexibility, and choice — organized into three experiential zones: Energize, Incubate, and Catalyze, each supporting a different way of working.

The result balances collaboration, focused work, and social connection, while supporting Ramboll's hybrid workforce strategy.

See how we built it here: https://www.cornerstoneag.com/rambolls-princeton-office-redefines-the-hybrid-workplace

"So you'll draw up the plans and then we hand it off to the contractor?"We've heard some version of that in more first m...
08/13/2026

"So you'll draw up the plans and then we hand it off to the contractor?"

We've heard some version of that in more first meetings than we can count. And we get it — the popular image of what architects do is stuck somewhere between a drafting table and a home renovation reveal.

Commercial architecture is a completely different animal.

When you hire us, here's what actually starts happening on day one: We're reading your project against the building code before a single line is drawn. We're coordinating structural, MEP, civil, and specialty consultants — and holding their contracts so we can actually manage them. We're looking ahead to permitting timelines, zoning issues, and approval processes that could cost you months if they surface late.

The drawings are the output. The value is everything that goes into them — and everything we catch before it becomes your problem.

If you're early in a commercial project (or just thinking about one), we're glad to have a straight conversation about what's actually involved.

Read the full article here: https://www.cornerstoneag.com/what-commercial-architects-do-and-why-its-not-what-you-think

Before you lock in a project budget, ask yourself these five questions:✔ Does my number include professional fees for ar...
08/12/2026

Before you lock in a project budget, ask yourself these five questions:

✔ Does my number include professional fees for architects, engineers, and consultants — not just the contractor's price?
✔ Have I budgeted for permits, zoning applications, and regulatory review, on top of construction?
✔ Is there a contingency line item — 20% early, tapering down as design gets more defined?
✔ Have I accounted for technology, data infrastructure, and furniture separately from the base building contract?
✔ Is my number based on today's material and labor costs, not a figure from a few years ago?

If you answered no to more than one, your "budget" may only be describing part of the project. An honest feasibility conversation early on can tell you exactly what you're missing before you design something you can't build.

Run through the full list in the blog: https://www.cornerstoneag.com/construction-cost-vs-project-cost-what-owners-need-to-understand

Bob Longo holds a code official license in New Jersey — the same credential held by the building department officials wh...
08/07/2026

Bob Longo holds a code official license in New Jersey — the same credential held by the building department officials who review permit applications.

He originally got it because he kept getting shut out of code seminars that were only open to licensed officials. His solution: take the exam. He passed without much trouble because he already had the knowledge.

What that means practically for our clients: when we look at a project, we're reading it the way a code official will. We know what's going to generate a comment letter, what's going to require a variance, and what a fire official is going to push back on. When code issues surface late, they're expensive. Catching them in week one is a different conversation entirely.

If you're evaluating a commercial property and want a straight answer on whether it works for your intended use, we're glad to take a look.

Read the full article here: https://www.cornerstoneag.com/is-your-property-even-zoned-for-your-use-what-to-check-first

"New Jersey is a weird state. We have 500 and some municipalities and a very strong home-rule tradition. Every town has its own zoning ordinance."
— Robert M. Longo, AIA, Principal, Cornerstone Architectural Group

Most projects build toward one signature moment — a focal point everything else frames.This one didn't. As our furniture...
08/07/2026

Most projects build toward one signature moment — a focal point everything else frames.

This one didn't. As our furniture vendor Cathy Daler put it after walking the finished space: "You nailed every detail with this project! I have to rethink my strategy that everything can't be a star!!!"

That's the idea behind Ramboll's Princeton office — every space pulls its weight, and the whole environment becomes the experience.

Explore the full project gallery here: https://www.cornerstoneag.com/rambolls-princeton-office-redefines-the-hybrid-workplace

This is the part most clients don't fully appreciate until they've been through a difficult project.The real value of a ...
08/07/2026

This is the part most clients don't fully appreciate until they've been through a difficult project.

The real value of a great commercial architect isn't always visible — it's in the problem that never became one. The comment cycle that didn't happen. The variance that wasn't needed. The code issue caught in week one instead of week twelve.

35+ years of commercial work across corporate interiors, manufacturing, institutional buildings, and municipal projects. We've been in these situations before.

If you're early in a project — or just thinking about one — we're glad to talk through what you're actually dealing with. No pitch. Just an honest conversation.

Full article here: https://www.cornerstoneag.com/what-commercial-architects-do-and-why-its-not-what-you-think

"Sometimes the most effective thing we can do for a client is the thing they never find out about: the problem we identified and addressed before it became one."
— Robert M. Longo, AIA, Principal, Cornerstone Architectural Group

New Jersey has over 500 municipalities — each with its own zoning ordinance, its own building department, and its own wa...
08/05/2026

New Jersey has over 500 municipalities — each with its own zoning ordinance, its own building department, and its own way of interpreting the rules.

Two properties on opposite sides of a street can be in entirely different zones with entirely different permitted uses.

We recently worked with a client in the flavor and fragrance industry who needed bulk storage silos at their facility. The silos were two feet over the height threshold for administrative approval in that municipality.

Administrative approval is dramatically faster and less expensive than going before a planning or zoning board. Staying under that threshold meant saving roughly six months and $50,000–$60,000 in approval costs. We went back to the manufacturer, asked if the vessel could be made slightly wider and shorter. It could. Problem solved before it became one.

That kind of catch requires knowing how a specific municipality measures building height, what the approval thresholds are, and where the design opportunities are. It's the kind of thing that doesn't show up in an ordinance search.

Full article here: https://www.cornerstoneag.com/is-your-property-even-zoned-for-your-use-what-to-check-first

Address

202 Hamilton Boulevard
South Plainfield, NJ
07080

Opening Hours

Monday 8:30am - 5:30pm
Tuesday 8:30am - 5:30pm
Wednesday 8:30am - 5:30pm
Thursday 8:30am - 5:30pm
Friday 8:30am - 5:30pm

Telephone

+19087537004

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