Once, an online estimator actually overshot the cost, and my client was relieved when bids came in lower.
That’s happened to me too—sometimes those tools are more conservative than I expect. I usually start with RSMeans or Craftsman for a rough idea, but I always double-check with local data. One time, RSMeans gave me a number that was way off because it didn’t account for a weird local surcharge on concrete. Since then, I’ll use the national tools as a baseline, then tweak based on what I know about the area and recent projects. It’s kind of a balancing act, honestly.
Title: Estimating Building Expenses: What Tools Or Sites Do You Trust?
I get where you’re coming from, but I actually lean away from the big national databases for my initial numbers. They’re a decent starting point, but I’ve found that even after adjusting for local quirks, there’s still a risk of missing something unique to the site or project type. For example, I once relied on Craftsman’s adjustments and still missed a local utility hookup fee that added a chunk to the budget—no estimator flagged it. My process now is more bottom-up: I’ll talk to a couple of local subs early, even before formal bidding, just to sanity-check the numbers. It’s slower, but I trust it more than tweaking national averages. Sometimes those “conservative” tools aren’t conservative enough...
- I hear you on the national databases—they’re just too generic for anything but a ballpark.
- I’ve had similar issues with “standard” tools missing local fees or one-off site conditions. Had a project last year where the soil report turned up a groundwater issue, and none of the databases or even the city’s own guidelines caught it. Ended up adding 10% to the budget after talking to a local engineer.
- My workflow’s pretty direct:
- Start with a rough estimate from RSMeans or Craftsman (just for a baseline).
- Immediately cross-check with two or three local GCs or subs—just a quick call or email, nothing formal.
- Always ask about recent surprises or fees they’ve run into.
- Curious, do you ever bring in a cost consultant early, or is it all in-house? I’ve noticed some firms swear by getting a third-party estimator on board, while others see it as overkill for smaller jobs...
Estimating Building Expenses: What Tools Or Sites Do You Trust?
Funny you mention the cost consultant debate—I’ve been on both sides of that fence. On a big multifamily job a couple years ago, we brought in an estimator early, thinking it’d save us headaches. In reality, it turned into this spreadsheet tennis match where their numbers clashed with our GC’s and even the city’s “official” line items. I swear, at one point I was cross-referencing three sets of unit costs for the same dang curb cut.
For most projects, we stick to in-house estimates unless it’s something with a ton of unknowns (old buildings especially). Local GCs are gold for those “gotchas” you just can’t predict—like the time a sub told me about a new city stormwater fee that wasn’t on any website yet. Saved our client from a nasty surprise.
I do wish there was a magic database that factored in all those local quirks, but until then, it’s mostly a mix of published tools and just talking to people who know the area. Sometimes I feel like half my job is detective work...
I hear you on the “detective work” part—sometimes it feels like half the job is just chasing down the right numbers. I’ve had similar experiences where published tools like RSMeans or Craftsman get you in the ballpark, but the moment you’re dealing with a historic structure or a city with its own quirks, those numbers start to drift. I still use RSMeans as a baseline, but I always cross-check with recent bids from local contractors. There’s just no substitute for that on-the-ground knowledge, especially when it comes to things like permit fees or utility tap costs that seem to change on a whim.
One thing I’ve found helpful is keeping a running log of “surprise” costs from past projects—stuff like that stormwater fee you mentioned. It’s not a magic database, but over time it’s become a pretty solid reference. I wish there was a more systematic way to capture all those local variables, but until then, it’s a mix of published data, local intel, and a bit of gut instinct.