Professional Fees For Extensions and Loft Conversion Projects
The below are examples of other consultant and submission costs associated with past projects we’ve worked on. Please use this as guidance for your project and note that all projects differ.
Please note that any scenario of the party wall agreement listed below could apply for each other project type.
Chimney Removal & Creation of WC
Stage 1 & 2 Fees:
- Measure and Design Fees: Contact Detailed Planning for a quote
Stage 3 Technical Fees:
- Building Regulation Drawings: Contact Detailed Planning for a quote
- Structural Engineer Fee: £408 inc VAT
- Building Control Inspection Fees: £585 inc VAT
- Party Wall Agreements: A notice was served to one neighbour as the chimney was being removed, the fee for the notice was £100 inc vat. The neighbour opted for a schedule of condition rather than a full party wall agreement costing the owner £300 inc vat rather than the typical £840 inc VAT for a full party wall agreement.
Simple Single Storey Ground Floor Rear Extension
Stage 1 & 2 Fees:
- Measure and Design Fees: Contact Detailed Planning for A quote
- Prior Approval Council Fee: £96
- Lawful Development Fee: £128
Stage 3 Technical Fees:
- Building Regulation Drawings: Contact Detailed Planning for a quote
- Structural Engineer Fee: £606 inc VAT
- Building Control Inspection Fees: £785inc VAT
- Thames Water Build Over Agreement: £299
- Party Wall Agreements: A notice was served to two neighbours as the excavation were within 3m of the neighbours, the fee for each notice was £100 inc vat. One neighbour signed the notice and the other opted for party wall agreement and agreed to using the suggested surveyor costing the owner £840 inc vat
Wrap Around Single Storey Ground Floor Rear Extension With Chimney and WC
Stage 1 & 2 Fees:
- Measure and Design Fees: Contact Detailed Planning for A quote
- Full Planning Application Fee: £231
Stage 3 Technical Fees:
- Building Regulation Drawings: Contact Detailed Planning for a quote
- Structural Engineer Fee: £950 inc VAT
- Building Control Inspection Fees: £1340 inc VAT
- Thames Water Build Over Agreement: £299
- Party Wall Agreements: A notice was served to two neighbours as the excavation were within 3m of the neighbours and shared walls were proposed, the fee for each notice was £100 inc vat. One neighbour agreed to use the suggested surveyor costing the owner £840 inc VAT. The other owner opted for their own surveyor, therefore the owner had to pay two surveyors fee, their surveyor cost £840 inc VAT, the neighbours surveyor cost £1800 inc VAT.
Permitted Development Loft Conversion (semi detached)
Stage 1 & 2 Fees:
- Measure and Design Fees: Contact Detailed Planning for A quote
- Lawful Development Application Fee: £128
Stage 3 Technical Fees:
- Building Regulation Drawings: Contact Detailed Planning for a quote
- Structural Engineer Fee: £630 inc VAT
- Building Control Inspection Fees: £783 inc VAT
- Party Wall Agreements: A notice was served to one neighbour as beams were installed within the party wall, the fee for each notice was £100 inc vat. The neighbour agreed to use the suggested surveyor costing the owner £840 inc VAT.
Large Double Storey Extension, Loft Conversion and Roof Extension (detached house)
Stage 1 & 2 Fees:
- Measure and Design Fees: Contact Detailed Planning for A quote
- Lawful Development Application Fee: £128
- Prior Approval: £95
- Full Householder Planning Application: £231
Stage 3 Technical Fees:
- Building Regulation Drawings: Contact Detailed Planning for a quote
- Structural Engineer Fee: £3906 inc VAT
- Building Control Inspection Fees: £2218 inc VAT
- Party Wall Agreements: Excavations were within 3m of one neighbour, a notice was served costing the owner £100 inc VAT, the neighbour signed the notice allowing the works to proceed.
