Case Study 37-2 — The $740,000 House That Cost $913,250
Vance Homebuilding, the Fairbairns, and everyone in this case study are Tier-3 illustrative composites. Residential contract law, homeowner-protection and disclosure statutes, contractor licensing, mandatory right-to-cure procedures, express and implied warranty obligations, and mechanic's lien rights on an owner-occupied residence vary substantially by state and locality and change over time. Nothing here is legal advice; the arithmetic is the transferable part.
Setup
Case Study 1 was a production line and the answer was arithmetic. This one is a single house, and the answer is a contract nobody wrote.
The builder. Garrett Vance builds five to seven custom homes a year in and around Rivermont. He is genuinely good. His houses are square, his framing is clean, his warranty callbacks are rare, and he has never advertised — every job for eleven years has come from a referral. He is also, in his own description, "not a paperwork guy."
The clients. Renée Fairbairn, a school psychologist, and Doug Fairbairn, a regional sales manager. Two incomes, three kids, one lifetime's savings. They bought a 1.4-acre lot outside town, hired an architect they liked, and came to Garrett because two neighbors told them to. This is the only house they will ever build.
The deal. 3,900 square feet, two stories, on their own lot. Fixed price: $740,000 — about $190 a square foot. 330 calendar days. Their bank approved a construction loan of $790,000: the contract plus a $50,000 cushion Doug was quietly proud of.
The two facts that decided everything, both present on the day they signed.
One: the drawings were about eighty percent done. Floor plans and elevations were complete. Interior elevations, the cabinet layout, the electrical plan, and most of the finish schedule were not. Garrett priced the gaps by judgment and carried them as allowances.
Two: nine allowance lines totaling $158,500 — twenty-one percent of the contract price. Garrett thought of them as generous. They were generous, by the standard of the houses he usually builds.
| Allowance line | Allowance carried | Actually purchased (installed) | Overrun |
|---|---|---|---|
| Cabinets and vanities | $38,000 | $71,400 | $33,400 | |
| Flooring, all rooms | $28,000 | $57,900 | $29,900 | |
| Tile — baths and backsplash | $16,000 | $30,300 | $14,300 | |
| Countertops | $14,000 | $26,850 | $12,850 | |
| Plumbing fixtures and trim | $12,500 | $23,700 | $11,200 | |
| Lighting fixtures | $9,000 | $19,400 | $10,400 | |
| Appliances | $12,000 | $19,600 | $7,600 | |
| Interior and exterior doors, hardware | $11,000 | $16,850 | $5,850 | |
| Landscape and irrigation | $18,000 | $21,950 | $3,950 | |
| Total | $158,500 | $287,950 | $129,450 |
Twenty-one percent of a fixed-price contract was not actually fixed. It was a placeholder with a number typed into it, and neither party understood that.
What happens
The selections, and what late cost
There was no selections schedule. There was a friendly sentence in the contract — "Owner shall make all selections in a timely manner so as not to delay the Work" — which is a sentence with no dates, no lock points, and no consequences, and is therefore a wish rather than a schedule.
Renée and Doug made their decisions in the order that felt important to them, which is not the order the sequence required. Nobody had ever told them there was an order.
| Selection | Should have been due | Actually decided | Late by | What it did to the job |
|---|---|---|---|---|
| Window package | Day 20 | Day 34 — then changed on Day 62, after the order was placed | 14 days, plus a change | Restocking, re-order, six-week lead. Dry-in slipped 24 CD |
| Plumbing fixtures and trim | Day 45 | Day 71 | 26 days | Rough plumbing held 9 CD; the primary bath was re-roughed later |
| Cabinet layout and door style | Day 55 | Day 118 | 63 days | Shop drawings released Day 133 instead of Day 70. Cabinets landed Day 203 and the entire finish sequence slid behind them |
| Electrical plan walk | Day 78 | Day 92 | 14 days | Rough electrical held 7 CD |
| Flooring, tile, countertops | Day 100 | Day 141 | 41 days | Tile start held 18 CD |
| Paint colors | Day 140 | Day 156 | 16 days | Paint start held 9 CD |
The slips overlap, so they are not additive. Net: 77 calendar days. Contract time 330; actual 407.
Understand what the cabinet line did, because it is the one that broke the job. A cabinet order does not begin at the showroom. It begins when a signed shop drawing releases the shop. Renée decided on Day 118, the shop drawings came back Day 133, and a ten-week build put the boxes on site Day 203. Countertop template follows cabinet set. Backsplash follows countertop. Appliance install follows countertop. Final plumbing and electrical trim follow both. A single late decision at day 55 propagated through nine downstream trades, and no amount of field hustle recovers it, because the constraint was a factory queue five hundred miles away.
The change orders
Five were priced and signed. Four were not.
| Signed | Amount | |
|---|---|---|
| CO 01 | Electrical service upsized 200 A → 400 A, plus a subpanel for the detached shop | $6,400 |
| CO 02 | Covered rear porch, 14' × 22', added during framing | $28,900 |
| CO 03 | Second-floor laundry relocated from the hall into the primary closet, after rough plumbing | $4,150 |
| CO 04 | First-floor interior doors upgraded to 8-foot | $7,850 |
| CO 05 | Wet bar deleted (credit) | ($3,500) |
| Total signed | $43,800 |
| Performed on verbal direction, invoiced, never signed | Amount | |
|---|---|---|
| — | Window package changed from vinyl to clad after the order was placed — restocking and re-order | $9,400 |
| — | Primary bath layout revised after rough plumbing; walls opened and re-roughed | $5,900 |
| — | Stair rail changed from painted poplar to stained white oak, decided at the trim stage | $4,850 |
| — | Shower niche and bench added at tile | $2,100 |
| Total unsigned | $22,250 |
Every one of the four unsigned items happened the same way: Doug or Renée mentioned it to a trade partner in the driveway, the trade partner did it, and it reached Garrett as a cost after it was already installed. This is CO #14 at Northgate — the change that got built before it was priced — reduced by three orders of magnitude and doing proportionally the same damage.
Day 236: the reconciliation letter
Garrett had been carrying the allowance overruns in his head and on a legal pad for seven months. On Day 236 his bookkeeper produced an actual reconciliation and he emailed it, in one document, with no warning.
Renée: "Garrett, this says we owe another two hundred eighteen thousand dollars."
Garrett: "It's mostly your selections. The cabinets alone were thirty-three over."
Renée: "You never told us $38,000 wouldn't buy cabinets."
Garrett: "You picked inset doors and a walnut island. That's not a $38,000 kitchen anywhere."
Renée: "We didn't know that. How would we know that?"
Neither of them is lying and neither of them is being unreasonable. That exchange is the entire case study.
The money
| Line | Amount |
|---|---|
| Original fixed-price contract | $740,000 |
| Allowance overruns, nine lines | +$129,450 |
| Builder's 18% fee on allowance overruns — disputed | +$23,301 |
| Signed change orders (five) | +$43,800 |
| Work performed on verbal direction, invoiced, unsigned — disputed | +$22,250 |
| Builder's final invoiced position | $958,801 |
| Fairbairns' position (contract + allowance overruns + signed COs only) | $913,250 |
| In dispute | $45,551 |
The contract said overruns would be billed "at cost." It did not say whether Garrett's fee applied to them. Both readings are honestly arguable — that is precisely the trap in §37.7.3, and it is worth $23,301 here. After four months and a mediation, Garrett conceded the fee and the Fairbairns paid the four unsigned items at cost with no markup. Everybody lost.
What it did to the Fairbairns.
| Amount | |
|---|---|
| Construction loan approved | $790,000 |
| Final amount paid | $913,250 |
| Shortfall funded from savings and a personal loan | $123,250 |
| Rent and storage for 77 extra days (they had already sold their house) | $7,200 |
Plus 77 more days of interest-only payments on a construction loan they had budgeted to convert to a mortgage in October.
What it did to Garrett.
| Amount | |
|---|---|
| Planned gross margin (16.0% of $740,000) | $118,400 | |
| Less 77 days of unrecovered field overhead at $310/CD | ($23,870) | |
| Less the 18% fee on allowance overruns, conceded at mediation | ($23,301) |
| Less the four unsigned change orders, hard cost absorbed | ($18,600) |
| Less mediation, legal, and the closeout scramble | ($14,200) |
| Realized gross margin | $38,429 |
| As a percentage of the $913,250 finally paid | 4.2% |
He built the largest house of his career, worked fourteen months on an eleven-month job, and earned 4.2 percent. And the referral engine that had fed him for eleven years stopped, because the Fairbairns had told the two neighbors who sent them.
Analysis — a systems failure, not a villain
Take the temptation to pick a side and put it down. Every decision on both sides was locally rational.
Garrett's allowances came from a standard sheet. It was built on the houses he usually builds — semi-custom, painted maple, laminate-and-quartz, builder-grade fixtures. He never asked what these clients would buy. He also set the allowances at a level that produced an attractive contract price, because he was competing against two other builders and $740,000 got him the job. Everything he did is an ordinary commercial instinct.
The Fairbairns had never bought cabinets in their lives. "$38,000 for cabinets" is an enormous number to a person who has never priced a kitchen, and it read to them as a ceiling they would struggle to reach. They made selections late because every decision was permanent, unfamiliar, and terrifying, which is the entirely predictable behavior of rational people making irreversible choices in a domain they do not understand with money they cannot replace. Nobody ever told them a decision date carried a price.
And here is the operational failure nobody noticed for seven months: Garrett sent the Fairbairns to Larkspur Kitchen & Bath without telling Larkspur the budget. Larkspur is paid on what it sells. Its designer showed the room she would show anyone, quoted $71,400, and did an excellent job. She was never told there was a $38,000 allowance, and would have designed to it if she had been. That is one email, unsent.
Three structural mechanisms produced the outcome:
- A fixed price on an incomplete design is not a fixed price. It is a fixed price on the eighty percent that was drawn plus an open account on the twenty percent that was not. The word "fixed" did the Fairbairns real harm, because they believed it.
- Allowances silent on labor and silent on fee generate disputes automatically. The flooring allowance was material-only in Garrett's mind and installed-cost in Renée's, and the contract did not say. Upgrading from carpet to tile costs more in material and roughly three times as much to install, and no allowance covered the labor. Same with the fee: "at cost" without a fee sentence is a lawsuit written in advance.
- A deadline with no stated consequence is a suggestion. Six selection dates existed in Garrett's head. None existed on paper, none carried a lock date, and none carried a consequence. So they were not deadlines, and everyone behaved accordingly.
The four decisions that would have prevented this
| Decision | What it costs | What it would have prevented | |
|---|---|---|---|
| 1 | A selections schedule as a contract exhibit — every line with the information the client needs, a decision-due date, a lock date tied to the order or the trade start, and a stated consequence: the builder selects the base item, and any later change is a change order at cost plus fee plus lead time. Bring each deadline forward once in writing before it is missed | About two hours at contract drafting, and one email a week | Most of the 77 days. Almost all of the cabinet cascade |
| 2 | Every allowance stated as an installed allowance — material plus labor plus fee — or explicitly and in bold as material-only, with one sentence on whether the fee applies to overruns and whether underruns are credited to the client | One sentence | The $23,301 fee dispute and the flooring labor argument |
| 3 | Do not sign a fixed price on an eighty-percent set. Either finish the interior design and finish schedule first and then fix the price, or use cost-plus with an open book and a not-to-exceed while the design is completed — the risk-allocation choice from Chapter 4, made deliberately instead of by default | Six to eight weeks of calendar before the contract | The structural cause. Allowances would have been a few thousand dollars, not $158,500 |
| 4 | A running allowance-and-change ledger, reconciled with the clients in writing at every stage walk, with a signed price before any material is ordered or any work performed — and the one-point-of-contact rule stated out loud at the preconstruction meeting: "If you want something changed, tell me, not the crew, and I will get you a price before anybody touches it" | Twenty minutes a week | The Day 236 ambush, and all four unsigned change orders |
Decision 1 is the one to take if you can only take one. The selections schedule is not a customer-service courtesy. It is a schedule gate with a dollar sign on it, and it is the single cheapest instrument in custom building.
⚖️ A standing caution. Whether Garrett could have liened the Fairbairns' home, on what notice, within what deadline; whether his written warranty could disclaim the implied warranty many states recognize on new homes; whether the Fairbairns had to follow a statutory right-to-cure procedure before filing anything; whether the arbitration clause in his form was enforceable; and whether his license classification even permitted this contract — every one of those answers is state-specific and several have changed by legislation in the last decade. Read your state's statutes and have a lawyer who practices where you build read your form contract. See Chapter 5 for the framework and Appendix E if you are the homeowner rather than the builder.
Discussion questions
- Garrett's allowances came from a standard sheet that had worked for eleven years. What specific question, asked once at the first meeting, would have exposed the mismatch between that sheet and these clients? Write the question, and then write the three follow-ups you would ask after their answer.
- The Fairbairns believed "fixed price" meant fixed. Garrett believed it meant fixed for the drawn scope. Both beliefs are defensible readings of the same document. Whose obligation is it to close that gap before signing, and why? Does your answer change if the client is a developer instead of a family?
- The unsigned change orders were all created in the driveway, by clients talking directly to trade partners. Design the mechanism that prevents this — not the rule, the mechanism. Who says what to whom, when, and what happens when somebody forgets?
- Compare the cost of being right in this case. Garrett's fee claim was $23,301 and honestly arguable; pursuing it cost him four months, a mediation, and a referral network. Under what conditions should a small builder concede an arguable claim immediately and in full?
- Case Study 1 was fixed with arithmetic and a one-page checklist. This one required a contract exhibit and a communication cadence. Both are systems failures. What do the two fixes have in common, and what does that tell you about where residential management effort actually pays?
Your turn
Write the selections schedule Garrett should have attached to the contract, using §37.8.1's five-column format, for this 330-calendar-day house.
- Take the nine allowance lines in the table above and turn each one into a row. Add rows for anything else that has to be decided before it can be built — cabinet hardware, plumbing rough-in dimensions, exterior color, garage door, shower glass.
- Give each row: the information the client needs in hand before they can decide; a decision-due date in cycle days; a lock date tied to the actual order or trade start; and a stated consequence for missing it, written in a sentence a non-builder will understand on first reading.
- Convert each allowance to an installed allowance and write the one sentence about the fee on overruns and the credit on underruns. Put it in bold.
- Write the email to the showroom. Three sentences: who the clients are, what the allowance is, and that it is an installed allowance covering material, labor, and fee.
- Finally, price your own schedule. If your selections schedule saves half of the 77 days, what is it worth to Garrett at $310 per calendar day of field overhead — and what is it worth to the Fairbairns in rent, storage, and interest?
Carry the exhibit into your Willow Street notebook. When you write this chapter's contrast memo, note which of these four decisions has a direct commercial counterpart on a $6.8 million municipal job — and which one exists only because the customer is a person spending the largest sum of their life.