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Caerlaverock Cluster-Wildlife and Natterjack Toad Pond Creation

Caerlaverock Estate

This public procurement record has 1 release in its history.

Tender

03 Sep 2026 at 01:00

PCS Notice - Website Contract Notice
Summary of the contracting process

Caerlaverock Estate is procuring environmental and habitat restoration works at Caerlaverock Estate near Dumfries. The project involves creating 24 ponds across the estate, covering approximately 22,000 square metres. Seven ponds will be designed specifically for natterjack toads, restoring historic breeding locations and habitat. The remaining 17 will provide general habitat and water restoration. The ponds are intended to support wider wetland ecosystems, including migratory wildfowl, damselflies and aquatic insects. They will also provide natural flood and surface-water management, diffuse pollution control and sediment catchment from adjacent hillside fields. The requirement is classified as construction work for environmental protection and nature conservation. The work is organised as one requirement covering the pond network and associated restoration activities.

The buyer invited offers through a tender using an open procedure, with electronic submission. The deadline for responses was 24 September 2026 at 17:00 UTC. Bid opening was scheduled for 25 September 2026 at 09:00 UTC, with the award period beginning at that time. The contract is scheduled to run from 13 October 2026 to 31 March 2027. Its estimated value is £55,000 including the single lot. Bids must remain valid until 23 October 2026. Submissions must be in English, and variants are not allowed. Electronic payment and ordering will be used, while electronic invoicing is permitted. The tender requires bidders to provide the names and qualifications of staff assigned to the work.

This opportunity suits contractors experienced in ecological construction, wetland creation, pond excavation and habitat restoration. Relevant capability includes designing or delivering ponds for protected or priority species, restoring breeding habitat, and constructing connected habitat networks rather than isolated features. Suppliers should be able to carry out earthworks and water-management works while controlling sediment and diffuse pollution from surrounding land. Experience of natural flood management, wetland ecology and wildlife-focused landscape works would be particularly relevant. The requirement also calls for named project staff and their professional qualifications, so bidders need an appropriately qualified delivery team and the capacity to complete multiple pond projects across an estate. Contractors combining civil engineering, drainage, environmental management and nature-conservation expertise are well placed to compete.

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Notice Information

Notice Title

Caerlaverock Cluster-Wildlife and Natterjack Toad Pond Creation

Notice Description

We plan to create a mixture of Natterjack Toad ponds (designed to reintroduce historic breeding locations/habitat specifically for this species) (NJT Ponds) and more general habitat and water restoration ponds (HWR Ponds). The HWR ponds are designed to reinstate general habitat, but also to provide natural flood and surface water management, together with diffused pollution control and sediment catchment from adjacent hillside fields - acting as a buffer zone. In winter, the ponds will reach their maximum surface area, providing large waterways for migratory wildfowl. In spring the NJT ponds will reduce in size and leave a small deepening which will heat up quicker to trigger the Natterjack spawn. In summer they will provide habitat for damselflies and aquatic pond insects. We plan to create 24 ponds, totalling approximately 22,000m2 across the estate adding to existing habitat and creating new wetland habitats. 7 will be natterjack toad specific ponds, and 17 general habitat ponds. Rather than thinking of these ponds as individual assets, we have grouped them into pond networks by holding but also layering other wildlife restoration efforts nearby to maximise the ecological benefit for the habitat. The layout of each having been specifically designed to support whole ecosystems.

Lot Information

Lot 1

We plan to create a mixture of Natterjack Toad ponds (designed to reintroduce historic breeding locations/habitat specifically for this species) (NJT Ponds) and more general habitat and water restoration ponds (HWR Ponds). The HWR ponds are designed to reinstate general habitat, but also to provide natural flood and surface water management, together with diffused pollution control and sediment catchment from adjacent hillside fields - acting as a buffer zone. In winter, the ponds will reach their maximum surface area, providing large waterways for migratory wildfowl. In spring the NJT ponds will reduce in size and leave a small deepening which will heat up quicker to trigger the Natterjack spawn. In summer they will provide habitat for damselflies and aquatic pond insects. We plan to create 24 ponds, totalling approximately 22,000m2 across the estate adding to existing habitat and creating new wetland habitats. 7 will be natterjack toad specific ponds, and 17 general habitat ponds. Rather than thinking of these ponds as individual assets, we have grouped them into pond networks by holding but also layering other wildlife restoration efforts nearby to maximise the ecological benefit for the habitat. The layout of each having been specifically designed to support whole ecosystems.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-r6ebe6-0000841766
Publication Source
Public Contracts Scotland
Latest Notice
https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=SEP563718
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
PCS Notice - Website Contract Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

92 - Recreational, cultural and sporting services

CPV Codes

45112360 - Land rehabilitation work

92533000 - Nature reserve services

Notice Value(s)

Tender Value
£55,000 Under £100K
Lots Value
£55,000 Under £100K
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
3 Sep 20261 weeks ago
Submission Deadline
24 Sep 20262 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
13 Oct 2026 - 31 Mar 2027 1-6 months
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Caerlaverock Estate
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
DUMFRIES
Postcode
DG1 4RU
Postcode Area
Dumfries and Galloway
Country
Scotland
Major Region (ITL 1)
TLM Scotland
Basic Region (ITL 2)
TLM9 Southern Scotland
Small Region (ITL 3)
TLM92 Dumfries and Galloway
Delivery Location
TLM92 Dumfries and Galloway
Local Authority
Dumfries and Galloway
Electoral Ward
Nith
Westminster Constituency
Dumfries and Galloway

Further Information

Notice Documents

  • https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=SEP563718
    Caerlaverock Cluster-Wildlife and Natterjack Toad Pond Creation - We plan to create a mixture of Natterjack Toad ponds (designed to reintroduce historic breeding locations/habitat specifically for this species) (NJT Ponds) and more general habitat and water restoration ponds (HWR Ponds). The HWR ponds are designed to reinstate general habitat, but also to provide natural flood and surface water management, together with diffused pollution control and sediment catchment from adjacent hillside fields - acting as a buffer zone. In winter, the ponds will reach their maximum surface area, providing large waterways for migratory wildfowl. In spring the NJT ponds will reduce in size and leave a small deepening which will heat up quicker to trigger the Natterjack spawn. In summer they will provide habitat for damselflies and aquatic pond insects. We plan to create 24 ponds, totalling approximately 22,000m2 across the estate adding to existing habitat and creating new wetland habitats. 7 will be natterjack toad specific ponds, and 17 general habitat ponds. Rather than thinking of these ponds as individual assets, we have grouped them into pond networks by holding but also layering other wildlife restoration efforts nearby to maximise the ecological benefit for the habitat. The layout of each having been specifically designed to support whole ecosystems.

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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