Our Prices
Project Design Fees
…We offer clear, competitive, and tailored pricing for every project. At Robert Blake Designs, our integrated approach to planning consultancy, structural engineering, and architectural design ensures a streamlined service — helping to reduce costs and delays. Our fees include an initial site visit, a full measured survey, and the preparation of your drawings, with revisions to suit your needs. We also handle the submission of your planning application, making the process simple and stress-free.
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Single Storey Extension Rear/Side/Front |
Planning drawings, including full application submission. |
Price from £650.00 |
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Building Regulations drawings excluding Structural Design. |
Price from £600.00 |
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Price excludes Council fees, Sewer Build Over Agreement fees, Party-wall Agreements, and other third-party information if required for planning or building control purposes. These fees will be included in the free detailed quotation. |
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Two Storey Extensions Rear/Side/Front |
Planning drawings, including full application submission. |
Price from £875.00 |
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Building Regulations drawings excluding Structural Design. |
Price from £800.00 |
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Price excludes Council fees, Sewer Build Over Agreement fees, Party-wall Agreements, and other third-party information if required for planning or building control purposes. These fees will be included in the free detailed quotation. |
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Loft Conversion |
Planning drawings, including full application submission. |
Price from £550.00 |
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Building Regulations drawings excluding Structural Design. |
Price from £750.00 |
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Price excludes Council fees, Party-wall Agreements, and other third-party information if required for planning or building control purposes. These fees will be included in the free detailed quotation. |
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Garage Conversions |
Planning drawings, including full application submission. |
Price from £395.00 |
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Building Regulations drawings excluding Structural Design. |
Price from £550.00 |
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Price excludes Council fees, Sewer Build Over Agreement fees, Party-wall Agreements, and other third-party information if required for planning or building control purposes. These fees will be included in the free detailed quotation. |
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Garden Outbuilding/Granny Annexe |
Planning drawings, including full application submission. |
Price from £395.00 |
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Building Regulations drawings excluding Structural Design. |
Price from £500.00 |
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Price excludes Council fees, Sewer Build Over Agreement fees, Party-wall Agreements, and other third-party information if required for planning or building control purposes. These fees will be included in the free detailed quotation. |
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