Donald Insall Associates , Heritage Impact Assessment Cost and Turnaround 2026
Donald Insall Associates. Architects plus heritage consultancy. RIBA Conservation Architect heavy. Fee: Quote-only (no published rate). Turnaround: Typical turnaround 5 to 10 weeks.
What they specialise in
Architects plus heritage consultancy. RIBA Conservation Architect heavy. Pricing model is bespoke per project. Verify on a per-case basis: heritage consultancies routinely flex fee in either direction based on scope, asset grade and the LPA's expressed expectations.
Where this vendor would typically sit on the four-band fee map
Market-band guidance, not a vendor-published rate. Sits across the Full HIA and HIA+DBA bands of the home-page four-band fee map; market observation places typical cathedral / Grade I instructions at £3,000 to £15,000. Not a vendor-published rate. See the methodology note for how the four bands are derived.
Verifying credentials before instructing
- Check the named author's RIBA, IHBC, CIfA or RICS-BCA accreditation directly on the relevant register.
- Request a recent case study where the LPA published its officer report , gives you third-party calibration.
- Confirm fee is ex VAT, and whether reasonable travel and out-of-pocket are included.
- Confirm the deliverable: PDF report, with or without sample wording for the Design and Access Statement integration.
What this site does not know
Where a consultancy does not publish per-project rates (most do not), the fee band shown is derived from market observation, comparable published quotes and case-study disclosures. Treat as indicative only; commission a quote directly. This site has no commercial relationship with the vendor.