A
Alder Lane Build Co.
Quotation summaryStated amount£44,800 excluding VATTax and scope details vary
Home improvement
Three extension proposals. Read the assumptions.
An invented brief describes a single-storey rear extension of approximately 3 m × 4 m. The synthetic excerpts differ on drawings, groundworks, services, finishes, tax and waste, so the amounts are not normalized.
Entirely fictional example. These synthetic offers are not like-for-like; no winner or savings calculation is implied. “Not stated” does not mean excluded.
01 / offer summaries
Three supplier proposals.
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N
North Harbour Extensions
Quotation summaryStated amount£59,600Tax and scope details vary
W
Willow & Brick Works
Quotation summaryStated amount£37,500 provisional estimateTax and scope details vary
02 / shared comparison
One criterion at a time.
Each stated value is supported by the synthetic excerpt shown for its supplier. “Not stated in this excerpt” describes only the excerpt, not the full document.
| Criterion | Alder Lane Build Co.Generated summary · interpretation The £44,800 amount is stated excluding VAT and is based on drawings supplied by the customer. The excerpt includes foundations, shell, roof, two rooflights, sliding doors and first-fix services. Internal finishes, fees, waste handling, timing and payment stages are not stated. The excerpt does not establish a completed-extension total. | North Harbour ExtensionsGenerated summary · interpretation The £59,600 fixed quote includes VAT and lists a measured survey, drawing coordination, an application-pack allowance, foundations, shell, roof, openings, first-fix services and plaster finish. Statutory fees, floor finish and decoration are excluded. The excerpt allows 14 weeks from an agreed start but does not state waste removal or payment stages. | Willow & Brick WorksGenerated summary · interpretation The £37,500 is a provisional estimate for foundations, block shell and roof structure after a site visit. Glazing, services and internal finishes are expressly excluded; tax basis, design or application work, waste, schedule and payment stages are not stated. Ask what site assumptions support the estimate and how changes will be priced. |
|---|---|---|---|
| Stated amount | £44,800 | £59,600 | £37,500 provisional estimate |
| Tax basis | Excluding VAT | Including VAT | Not stated in this excerpt |
| Drawings / application paperwork | Based on customer-supplied drawings; fees not stated | Measured survey, drawing coordination and application-pack allowance; statutory fees excluded | Not stated in this excerpt |
| Groundworks / foundations | Strip foundations included | Foundations included | Foundations included; ground-condition assumptions not stated |
| Structure / roof | Brick and block shell and roof covering included | Insulated block shell and roof included | Block shell and roof structure only |
| Doors / rooflights | Two rooflights and sliding doors included | Sliding doors and two rooflights included | Glazing excluded |
| Services | First-fix electrical and plumbing work included | First-fix electrical and plumbing included | Services excluded |
| Internal finishes | Not stated in this excerpt | Plaster finish; floor finish and decoration excluded | Internal finishes excluded |
| Waste / site clearance | Not stated in this excerpt | Not stated in this excerpt | Not stated in this excerpt |
| Schedule / payment | Start date and payment stages not stated in this excerpt | Allow 14 weeks from agreed start; payment stages not stated | Schedule and payment stages not stated in this excerpt |
Alder Lane Build Co.
The £44,800 amount is stated excluding VAT and is based on drawings supplied by the customer. The excerpt includes foundations, shell, roof, two rooflights, sliding doors and first-fix services. Internal finishes, fees, waste handling, timing and payment stages are not stated. The excerpt does not establish a completed-extension total.
North Harbour Extensions
The £59,600 fixed quote includes VAT and lists a measured survey, drawing coordination, an application-pack allowance, foundations, shell, roof, openings, first-fix services and plaster finish. Statutory fees, floor finish and decoration are excluded. The excerpt allows 14 weeks from an agreed start but does not state waste removal or payment stages.
Stated amount
Alder Lane Build Co.£44,800
North Harbour Extensions£59,600
Tax basis
Alder Lane Build Co.Excluding VAT
North Harbour ExtensionsIncluding VAT
Drawings / application paperwork
Alder Lane Build Co.Based on customer-supplied drawings; fees not stated
North Harbour ExtensionsMeasured survey, drawing coordination and application-pack allowance; statutory fees excluded
Groundworks / foundations
Alder Lane Build Co.Strip foundations included
North Harbour ExtensionsFoundations included
Structure / roof
Alder Lane Build Co.Brick and block shell and roof covering included
North Harbour ExtensionsInsulated block shell and roof included
Doors / rooflights
Alder Lane Build Co.Two rooflights and sliding doors included
North Harbour ExtensionsSliding doors and two rooflights included
Services
Alder Lane Build Co.First-fix electrical and plumbing work included
North Harbour ExtensionsFirst-fix electrical and plumbing included
Internal finishes
Alder Lane Build Co.Not stated in this excerpt
North Harbour ExtensionsPlaster finish; floor finish and decoration excluded
Waste / site clearance
Alder Lane Build Co.Not stated in this excerpt
North Harbour ExtensionsNot stated in this excerpt
Schedule / payment
Alder Lane Build Co.Start date and payment stages not stated in this excerpt
North Harbour ExtensionsAllow 14 weeks from agreed start; payment stages not stated
03 / open questions
What to clarify next.
Alder Lane Build Co.
What VAT, approval fees, internal finishes and waste arrangements apply?
What is the schedule and how are staged payments tied to completed work?
North Harbour Extensions
Which statutory fees and application steps sit outside the quoted amount?
What floor finish, waste removal and payment stages should be added to the scope?
Willow & Brick Works
Which ground conditions and dimensions are assumed in this provisional estimate?
What drawings, services, glazing, finishes, tax and waste costs remain to be scoped?
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