Affordable housing is expensive to build and far too slow to meet demand, and founder Atticus LeBlanc saw a misalignment of incentives across the industry: in Atlanta, a subsidised one-bedroom apartment had to meet a 750-square-foot minimum, 'whereas we know we can house people comfortably in 250 square feet', and new construction faced lengthy planning and financing on top. The national deficit was more than 7 million affordable homes.

PadSplit, launched in Atlanta in 2017, works with owners who rent out single-family homes. The owners bring houses up to a set standard, PadSplit helps add walls to turn leftover rooms into bedrooms, then the company screens residents and rents rooms — furnished, by the week if needed, with utilities, internet and laundry bundled in — for around $550 a month. The price is close to a Craigslist room, but homes are in better condition and every housemate gets a background check.

The economics carry it: an owner who had rented the whole house for $1,200 makes more money room by room, while the average PadSplit member — earning about $21,000 a year — saves $460 by renting through the startup, by the article's figures. LeBlanc's arithmetic for the model: for the cost of the federal subsidy for a single unit, PadSplit can create 50. The model echoes the single-room-occupancy housing cities once banned, whose disappearance contributed to homelessness — but with living standards high enough, he argues, to dodge the SRO stigma.

By April 2019 the company, now a public benefit corporation, had helped owners open more than 200 units, raised a $4.6 million seed round that month, and planned roughly 1,000 units by year end, many in opportunity zones, with expansion beyond Atlanta planned.

Do not build new units — re-cut the existing stock: a wall across a dining room turns one house into an owner's better business.

Owners convert voluntarily because room-by-room beats the whole-house rent — supply follows profit rather than mandates.

Rooms can rent below market because the structure already exists: no land purchase, rezoning or construction cycle.

Bundling utilities flips the efficiency incentive — the owner, not the tenant, pays the electric bill, so efficiency investments pay back.

Every unit demonstrates to private capital that affordable housing can be as profitable as market rate, which is what LeBlanc thought would actually scale the solution.

The cheapest new housing is housing that already exists. Align the owner's profit with the resident's cheap rent and the private market will create affordable units without being asked.

By April 2019 PadSplit had helped owners offer more than 200 affordable units and planned about 1,000 by the end of the year, with an Atlanta church sponsoring one home as quick housing for homeless people. Limits remained: rooms take at most two people, house capacity is capped by bathroom count, not everyone wants shared kitchens, and some neighbours resist seeing a single-family house become a multi-unit rental.

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The sources

  1. Want new affordable housing quickly? Try splitting up existing homes fastcompany.com