12 Chicken Coop Greenhouse Combo Ideas: DIY Plans and Layouts

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Chickens and tomatoes sound like a bad mix.

They are, unless there’s a wall between them.

Here are 12 chicken coop greenhouse combo ideas that keep both happy, from a simple lean to build to layouts, ventilation and safe plants. Three come with full step by step cards.

1. DIY Lean To Greenhouse on a Chicken Coop

A lean to greenhouse uses the coop wall as its back wall. It’s cheaper to build, and the coop wall soaks up daytime sun and holds a little of the warmth.

Face it south for the most light. Keep the greenhouse and the hen area fully separate, with a solid wall between them. Hens belong outside the greenhouse unless you’re there with them.

⏱ 1 weekend💲 Medium🛠 Medium

2. Chicken Coop Greenhouse Combo Plans and Layout

Good combo plans start with the sun. Put the greenhouse on the south side, and let the coop and run sit on the shadier side.

Plan three zones, one for hens, one for plants and one for compost. Leave a clear path between them and put the doors where you walk. A good plan also shows where the vents, water and tools go.

You’ll need: graph paper pad

Best for: first time planners

3. Greenhouse and Chicken Run With a Wire Divider

Chickens and tomatoes are a messy mix. The fix is a strong wall of hardware cloth between them.

Use half inch hardware cloth on a solid frame, and bury the bottom edge about 6 inches. Hens can squeeze through gaps you wouldn’t expect, and they’ll eat seedlings through any hole.

You’ll need: hardware cloth, half inch and gate latch

Best for: anyone mixing hens and plants

4. Polycarbonate Greenhouse Roof Over a Run

A clear roof turns a muddy run into a bright, dry space. It works like a greenhouse for the hens, and it lets winter sun in.

Slope the roof so rain and snow slide off, and leave gaps at the top for air. A clear roof can get hot in summer, so add shade cloth, and open vents when the days get warm.

⏱ 3 hours💲 Medium🛠 Medium

5. Ventilation and Shade for a Coop Greenhouse

Heat is the biggest risk with a combo. A closed greenhouse in the sun can get dangerously hot in an hour.

Add vents high and low, so hot air leaves and cool air comes in. Put a thermometer where you can read it from outside. Shade cloth on the roof cuts the heat a lot, and a solar vent opener works without any power.

You’ll need: automatic greenhouse vent opener and greenhouse thermometer

Best for: hot summers and sunny sites

6. Sharing Warmth Between Coop and Greenhouse

In winter, a greenhouse on the sunny side catches heat during the day. Some of it passes through the shared wall, which takes the edge off the cold.

Don’t expect a heater. It only softens the cold. Keep the coop’s vents open, and never pipe air or fumes from the coop into the greenhouse. Droppings give off ammonia, which hurts plants and lungs.

You’ll need: min max thermometer

Best for: cold climates

7. Plants That Are Safe Near Hens

Many herbs are great for hens, and they smell lovely. Basil, mint, oregano, thyme and parsley are all good choices.

Keep tomato and potato leaves, rhubarb leaves and foxglove well away from the run. They can make hens ill. Grow them in the greenhouse behind the wire, and never toss the leaves over the fence.

You’ll need: herb seed starter kit

Best for: gardeners with hens

8. Hen Proof Raised Beds Inside a Greenhouse

Raised beds with wire lids keep scratching hens out. They also make it easy to grow salad greens all winter.

Build the bed about 12 inches deep and cover it with a hinged lid of hardware cloth. Fill it with fresh potting mix and compost. Wash your hands after touching soil near hens.

⏱ 2 hours💲 Low🛠 Easy

9. Small Backyard Chicken Greenhouse Combo

You don’t need a big yard. A small coop for 3 or 4 hens and a little greenhouse can sit in a tiny space.

Plan about 4 square feet per hen inside, and 10 in the run. Build up, not out, with shelves in the greenhouse and a roof over everything. Check local rules first, because many towns limit the number of hens.

You’ll need: tiered plant shelf for greenhouse

Best for: small yards and starter flocks

10. Recycled Window Greenhouse Wall

Old windows can make a lovely, cheap wall. They let in a lot of light, and they cost almost nothing.

Glass is a risk near hens. Use tempered glass only, or swap in acrylic panels, and keep every pane out of the hens’ reach with a wire guard. Check old frames for peeling paint, and don’t use anything that may contain lead.

You’ll need: clear acrylic sheet

Best for: budget builders

11. Compost Corner Between Coop and Greenhouse

Coop bedding makes great compost. A bin between the coop and the greenhouse makes the whole loop easy.

Fresh droppings are too strong for plants. Compost them for several months before they go on a bed. Keep the bin covered and away from the hens’ water, and wash your hands after handling.

You’ll need: compost bin with lid

Best for: gardeners who love a closed loop

12. Predator Proofing a Coop Greenhouse Combo

A greenhouse is a new door for predators. Raccoons can pry open panels and foxes can dig under the frame.

Bury hardware cloth 12 inches deep or lay an apron 2 feet wide. Secure all panels with screws and clips. Use two step latches on every door, and close everything at night.

You’ll need: two step door latch and galvanized staples

Best for: every combo

Frequently Asked Questions

Final Thoughts on Chicken Coop Greenhouse Combo

A coop and greenhouse side by side make a lovely little homestead. Keep a solid wall between hens and plants, plan for heat and ventilation, and use polycarbonate. Start small and add as you go.

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