Image 1 of 20 |3636 Clay Street  The four-level home at 3636 Clay St. has more than 8,000 square feet of living space.  Image 1 of 20 - 3636 Clay Street  The four-level home at 3636 Clay St. has more than 8,000 square feet of living space.  The four-level home at 3636 Clay St. has more than 8,000 square feet...of living space.  Image 2 of 20 |3636 Clay Street  The foyer hosts a beamed ceiling and showcases the turned staircase.  Image 2 of 20 - 3636 Clay Street  The foyer hosts a beamed ceiling and showcases the turned staircase.  The foyer hosts a beamed ceiling and showcases the turned staircase.  Image 3 of 20 |3636 Clay Street  Leaded glass windows sit above the staircase in the foyer.  Image 3 of 20 - 3636 Clay Street  Leaded glass windows sit above the staircase in the foyer.  Leaded glass windows sit above the staircase in the foyer.  Image 4 of 20 |3636 Clay Street  The living room includes a round bay of windows and fireplace with stone surround.  Image 4 of 20 - 3636 Clay Street  The living room includes a round bay of windows and fireplace with stone surround.  The living room includes a round bay of windows and fireplace with...stone surround.  Image 5 of 20 |3636 Clay Street  A trio of French doors off the living room open to a deck.  Image 5 of 20 - 3636 Clay Street  A trio of French doors off the living room open to a deck.  A trio of French doors off the living room open to a deck.  Image 6 of 20 |3636 Clay Street  The formal dining room includes a fireplace and coffered wall panels.  Image 6 of 20 - 3636 Clay Street  The formal dining room includes a fireplace and coffered wall panels.  The formal dining room includes a fireplace and coffered wall panels.  Image 7 of 20 |3636 Clay Street  A wealth of windows welcomes natural light into the eat-in kitchen  Image 7 of 20 - 3636 Clay Street  A wealth of windows welcomes natural light into the eat-in kitchen  A wealth of windows welcomes natural light into the eat-in kitchen  Image 8 of 20 |3636 Clay Street  The family room hosts wainscoting and a fireplace with brick surround.  Image 8 of 20 - 3636 Clay Street  The family room hosts wainscoting and a fireplace with brick surround.  The family room hosts wainscoting and a fireplace with brick surround.  Image 9 of 20 |3636 Clay Street  A built-in bench nestles against a brick fireplace in the family room.  Image 9 of 20 - 3636 Clay Street  A built-in bench nestles against a brick fireplace in the family room.  A built-in bench nestles against a brick fireplace in the family room....  Image 10 of 20 |3636 Clay Street  The sitting room overlooks San Francisco Bay and includes a fireplace.  Image 10 of 20 - 3636 Clay Street  The sitting room overlooks San Francisco Bay and includes a fireplace.  The sitting room overlooks San Francisco Bay and includes a fireplace.  Image 11 of 20 |3636 Clay Street  The office hosts an inlaid hardwood floor and wainscoting.  Image 11 of 20 - 3636 Clay Street  The office hosts an inlaid hardwood floor and wainscoting.  The office hosts an inlaid hardwood floor and wainscoting.  Image 12 of 20 |3636 Clay Street  This bedroom hosts a coved ceiling, hardwood flooring and a wood-burning fireplace in the sitting area.  Image 12 of 20 - 3636 Clay Street  This bedroom hosts a coved ceiling, hardwood flooring and a wood-burning fireplace in the sitting area.  This bedroom hosts a coved ceiling, hardwood flooring and a...wood-burning fireplace in the sitting area.  Image 13 of 20 |3636 Clay Street  Bay windows overlook Presidio Heights in this bedroom.  Image 13 of 20 - 3636 Clay Street  Bay windows overlook Presidio Heights in this bedroom.  Bay windows overlook Presidio Heights in this bedroom.  Image 14 of 20 |3636 Clay Street  The Presidio Heights home has six-plus bedrooms.  Image 14 of 20 - 3636 Clay Street  The Presidio Heights home has six-plus bedrooms.  The Presidio Heights home has six-plus bedrooms.  Image 15 of 20 |3636 Clay Street  The bedroom hosts coffered wall panelings, a coved ceiling and view of Sutro Tower.  Image 15 of 20 - 3636 Clay Street  The bedroom hosts coffered wall panelings, a coved ceiling and view of Sutro Tower.  The bedroom hosts coffered wall panelings, a coved ceiling and view of...Sutro Tower.  Image 16 of 20 |3636 Clay Street  The master suite sits on the south side of the house.  Image 16 of 20 - 3636 Clay Street  The master suite sits on the south side of the house.  The master suite sits on the south side of the house.  Image 17 of 20 |3636 Clay Street  A plaster medallion in the ceiling is one of the period details of the home built in 1899.  Image 17 of 20 - 3636 Clay Street  A plaster medallion in the ceiling is one of the period details of the home built in 1899.  A plaster medallion in the ceiling is one of the period details of the...home built in 1899.  Image 18 of 20 |3636 Clay Street  The Presidio Heights home has four levels and 6-plus bedrooms  Image 18 of 20 - 3636 Clay Street  The Presidio Heights home has four levels and 6-plus bedrooms  The Presidio Heights home has four levels and 6-plus bedrooms  Image 19 of 20 |3636 Clay Street  The sixth bedroom rests on the top floor and features a sharply angled ceiling.  Image 19 of 20 - 3636 Clay Street  The sixth bedroom rests on the top floor and features a sharply angled ceiling.  The sixth bedroom rests on the top floor and features a sharply angled...ceiling.  Image 20 of 20 |3636 Clay Street  The backyard includes high fences and a circular lawn.  Image 20 of 20 - 3636 Clay Street  The backyard includes high fences and a circular lawn.  The backyard includes high fences and a circular lawn.
Back in 1899, when 3636 Clay Street in Presidio Heights was built, most people got around San Francisco via cable car or horse and buggy, so it's not that surprising that the 8,000-square-foot home was designed without a garage. What's more surprising is that, in the last 116 years, n