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This is a guest post from Alex De Looz of Mesh Architectures. If you’re an architect and would like to have a project considered for publication on Brownstoner, shoot us an email at brownstoner@brownstoner.com.

When a family works, lives and grows at home, space can be tight and it’s true even in a Park Slope brownstone. With their second child on the way, a Brooklyn based creative couple, a painter and a musician, decided to squeeze extra space from their 3 story home. Sacrificing yard space was undesirable and the heavily used basement floor was already dedicated to an open kitchen, living and play area. The only place to explore was the cellar, hard to imagine when faced with a cramped, dark space barely navigable between boxes, old furniture, and a tangle of heating pipes. MESH transformed the low slung, dirt-floor storage area into a bright, open home office and family room, incorporating household storage and accommodating guests.

The owners initially…

…decided to forgo a complete excavation, which can be lengthy and expensive. The MESH team (with structural engineer Michelle Norris) engineered a solution that left the old rubble foundation walls undisturbed, excavating the center of the space and leaving a raised structurally stabilizing perimeter shelf. Cellar renovations often face inconveniently placed plumbing, cables, and equipment, but in this case initial excavation revealed a major challenge in the home’s shallow and uneven foundations. This discovery triggered a change in approach: the existing foundations had to be extended deeper into the earth, known as underpinning, and the cellar fully excavated. For the owners, deciding in favor of a full excavation was both logistically challenging, with the arrival of a newborn, and more expensive, but it offered an opportunity to add volume, bolster foundations and improve the design.

Any brownstone cellar renovation is constrained by the lot configuration and orientation to the street. Spaces are long and narrow. City services like water, gas and electricity enter on the street-side and claim mechanical space, and the structurally important “relieving wall” that divides the upper floors along the length of the stair demands its own supports and footings. In order to create a large usable floor area, MESH replaced the brick piers supporting the relieving wall with slender steel posts and a steel beam that could uniformly support the action of the wall above. We pushed all mechanical apparatus street-side, minimizing pipe runs and ducts and providing a half-bath and laundry room; we opted to heat with an out-of-sight radiant floor and cool with a unique mini-split unit disguised as wall-art. Another major constraint was the existing cellar stair opening. Avoiding costly structural framing, we adapted the tight opening to a new maple stair where integrated LED light-box and translucent resin railings offer a feeling of openness and give the room its signature orange glow, visible from the hall landing above.

Our goal was to turn the cellar into the brightest room in the house: we continued specialized light treatment all along the support beam with a recessed linear fixture. As a result, the beam becomes an active visual element and creates a compositional axis for the ceiling. We painted the posts and beam bright orange to harmonize with the continuous, wall-to-wall natural linoleum floor, emphasizing visual unity and warmth across the room, from wall panels to floor. Special features include a wall unit composed of interlocking, variously sized standard IKEA cabinets which offer ample storage behind an appealing pattern of natural maple and painted panel doors; additional under-stair storage and concealed wet-bar; a magnetic dry-eraser art wall and activity shelf; home office and multi-media lounging area. We also worked closely with the clients to select the appropriate furnishings to complete the space, including large graphic carpets that add focus and are easily cleaned. Finally, as a nod to the old cellar we left rubble stone exposed in the rear coal shoot now accessible by a ship’s ladder, transforming the nook into a sky-lit perch or a day-dreamer’s getaway.


What's Your Take? Leave a Comment

  1. It’s great to get feedback, so thanks for all the posts!

    If you are thinking of renovating your cellar, it’s time to reckon with all that old stuff and sort chaff from wheat. In our case, what was kept from knickknacks to bikes and garden tools was accommodated in a mechanical closet, under stair storage, and wall units which were treated as a visual feature to enliven the room.

    If you are interested in adding a half-bath, don’t despair if the house drain is higher then you’d like it. Ejector pumps enable plumbing located below the house’s main drain connection to work against gravity.

    Keep in mind that unlike a typical apartment renovation where you replace finishes and partitions, a cellar can involve sizable structural and mechanical work, pushing cost upwards, particularly when adding volume. Underpinning, as we did, is a demanding process and involves meticulous engineering and scrutiny by the Department of Buildings. Relocating plumbing so it runs unobtrusively behind perimeter walls and above the ceiling is also a tricky process. Having a responsive and experienced plumber is key.

    Sorry, our clients have requested we keep the cost confidential. Generally, renovating a cellar pays back in terms of home value — the total cost is still well below unit cost for new space — but demands careful consideration. In our case, we specified practical finishes and mill-work to help control the budget such as a cool linoleum for the floor and IKEA units for a majority of the cabinet bodies. Keep the overall picture in mind from the start to avoid ending up short on furnishing the space.

  2. A story like this on a board like this deserves a price. As someone pointed out above, this isn’t about design on Brownstoner, it is about deciding if it worth it to redo a basement or do you just buy another house with a finished basement.

  3. look at those pencil-thin columns supporting the central bearing wall in place of the original brick piers. That alone gives me the heevy-jeevies.
    Miss M, just the cute glass hatch with the custom ladders cost $10,000. Are you kiddin’ me? $20,000? This place did not come off the shelf at Target. Everything looks custom. It’s a nice look but structurally, I don’t like those thin posts. Old houses need a certain amount of mass to keep them up.

  4. Well, I don’t think anyone has to say where their money came from – that’s personal info that isn’t really relevant. But yes, I agree that they should post cost for this renovation, since otherwise, it’s not nearly as helpful. As others have said, you can do lots of beautiful things with enough money! That said, I know people who’ve done very good cellar rec rooms for in the range of 20K so 100K sounds VERY expensive but I have no idea what this really cost, and would love to. Mesh, can you reveal the price tag please?

  5. I guesstimate $100,000. The excavation alone is a bear. Plus I think they removed the brick piers. I also do not see a “bump-out” at the perimeter as per the text so I bet they went ahead and underpinned the bearing wall. Oof! Many bucks.
    100,000 plus soft costs

  6. it seems to me that if you are going to post a renovation like this one of a basement, you should not be embarrassed to post the cost. it is obvious that this was quite expensive, and as an artist and musician, unless you are chris ofili (famous artist) who bought spike’s old house on fort greene park, or a famous musician, norah jones in cobble hill, you should be expected to tell us where the money came from and WHAT IT COST?! otherwise, please don’t post these renovations or brownstoner should just say, this was really expensive but it goes to show what can be done….