What Will This Brownstone
Actually Cost You?
Run the numbers before you fall in love with the stoop. Three inputs. One honest answer.
What the Listing Didn't Say
Hover each card to see before and after. Click to read what I found that the inspection report missed.


Bed-Stuy, Brooklyn
432 Halsey Street
Brownstone · 4-family
Closed at
$1.74M
$110K below ask
Original tin ceiling · Exposed brick arch · Pocket doors intact
What I caught
Unlicensed rear addition (2002) — required DOB sign-off before close.
Fort Greene, Brooklyn
89 Willoughby Avenue
Rowhouse · 2-family
Closed at
$2.1M
Full price — worth every cent
Original marble mantel · Herringbone oak floors · Garden-level rental
What I caught
Roof was 4 years past its expected lifespan. Seller replaced it pre-close.


Harlem, Manhattan
271 West 138th Street
Brownstone · 3-family
Closed at
$2.29M
$160K + $84K in avoided reno
Sister joists replaced · Plaster cornices preserved · Illegal 4th unit removed
What I caught
Illegal 4th unit created fire separation violations. $84K in remediation avoided.


West Philadelphia
4412 Spruce Street
Townhome · Single-family
Closed at
$648K
$37K + full inspection credit
Slate roof · Original fireplace surround · Pocket doors on every floor
What I caught
Three slate panels cracked. Seller credited $18K and replaced failed flashing.
Six Things I Look For Before You Do
Every one of these has appeared in a listing I've walked. Every one was described as something harmless. None of them were.
The "Updated Electrical" Claim
Listing says: ""Updated electrical throughout.""
Knob-and-tube wiring behind new switch plates. The panel was replaced; the wiring was not. Insurers won't touch it.
Joist Failure at the Bearing Wall
Listing says: ""Original hardwood floors in excellent condition.""
A soft spot near the bearing wall means failed joists below. The floors look fine. The structure underneath is not.
The Illegal Garden-Level Conversion
Listing says: ""Bonus income apartment — currently rented at $2,400/mo.""
No certificate of occupancy. No fire separation. No egress window. The income is real; the liability is larger.
Brownstone Facade Spalling
Listing says: ""Classic brownstone facade with original detailing.""
Spalling is water infiltration in slow motion. Once it reaches the lintels, you're looking at a $60K+ facade restoration.
The Parged Basement
Listing says: ""Dry basement, recently waterproofed.""
Parge coating over stone foundation hides active water infiltration. "Waterproofed" means painted, not fixed.
Missing Party-Wall Agreement
Listing says: ""Attached rowhouse, quiet block.""
No party-wall agreement means the neighbor's renovation is your structural problem. Always check before you close.
I walk every property before my clients do. The inspection report comes after I've already flagged the problems.
Get Your Brownstone Readiness Score
Five questions. Two minutes. A frank assessment of where you stand — and what to do next.
Question 1 of 5
What's your buying timeline?
What Buyers Say After the Close
Not curated pull quotes. Specific outcomes, specific numbers, specific houses.
"I was terrified of buying something that would bankrupt me in year two. The calculator on this page was the first honest number I'd seen. When we walked the Halsey Street property, she pointed to a soft spot near the bay window before the inspector even got there. We used it to negotiate $40K off. I would never have seen it."
Avoided $67K in undisclosed electrical work

Deja Whitfield
First-Time Buyer
Bed-Stuy, Brooklyn
"I've bought seven buildings in twelve years. Most buyer's agents walk into a gut renovation and see a price negotiation. She walked into mine and immediately identified that the third-floor joists were failing at the rear wall — something my contractor missed in the pre-offer walkthrough. That catch alone justified her fee four times over."
$84K joist problem caught pre-offer

Marcus Okonkwo
Investor · Gut Renovation
West Harlem
"We fell in love with the stoop on a Sunday walk. We had no idea what we were doing. She walked the property with us three times, explained every creak in the floor, and told us exactly which pocket doors were original and which were replacements. We knew what we were buying. That's rare."
Roof replacement negotiated pre-close

Priya and Sanjay Mehta
Growing Family
Fort Greene, Brooklyn
"The street noise disappears. The original tile is cool underfoot. Someone who knows every secret of the house is waiting inside."
Get Your Brownstone Readiness ScoreNo obligation. 5 questions. Honest answer.