Explore the latest House Plans coupons, promo codes, and online sales available for September 2025, and start saving on your favorite products today.
| Discount | Details | Validity |
|---|---|---|
| 5%Off | Save 5% Off Site-Wide | 1-10-25 |
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| 10%Off | 10% Off On Qualified Orders At House Plans With Code | 28-9-25 |
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| 10%Off | Get An Extra 10% Off Site-Wide | 30-9-25 |
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| 5%Off | Extra 5% Off Your Order | 1-10-25 |
| 5%Off | Save 5% Off Your Purchase At House Plans | 30-9-25 |
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| 5%Off | 5% Off Your Order | 29-9-25 |
| $50Off | Save $50 Off Your Order At House Plans | 28-9-25 |
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| $10Off | Get $10 Off At Houseplans.com | 30-9-25 |
| $1Off | $1.99 Off Cost To Build Report | 30-9-25 |
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| $1Off | Low Prices On Barndominium Plans And Barn Floor Plans – From $1.99 | 8-10-25 |
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| $6Off | Snag Craftsman Style House Plan At $6 – Limited-Time Offer | 7-10-25 |
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| $1Off | Save On Barndominium Plans And Barn Floor Plans – From Only $1.99 | 4-10-25 |
| $6Off | Get Craftsman Style House Plan At $6 From House Plans | 4-10-25 |
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| $6Off | Don’t Miss Craftsman Style House Plan For Only $6 | 1-10-25 |
| 15%Off | 15% Off Any House Plan | 1-10-25 |
| 10%Off | 10% Off House Plans | 1-10-25 |
| 10%Off | 10% Off Your House Plan For A Limited Time | 29-9-25 |
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| 5%Off | Extra 5% Off Sitewide | 1-10-25 |
| $4Off | Are Only $4.99 With Code | 1-10-25 |
| $1Off | Get $1.99 Cost To Build Reports | 30-9-25 |
| 5%Off | Builder Advantage Program - Pro Builders: Join The Club And Save 5% On Your First Order Plus Exclusive Discounts | 1-10-25 |
| 5%Off | Membership Benefits 5% Off | 1-10-25 |
| $100Off | $100 Off For Any Order | 29-9-25 |
