Reltic Construction Consultants Independent Commercial Advisory
Services
Project types
Who we work with
Projects Scenarios Insights Process About
Contact 020 3576 2851
Hazy view across a city skyline with tower cranes on the horizon

Insights

Commercial writing for people carrying the risk

Six subjects, written for developers, funders and investors rather than for other surveyors. No case studies dressed up as marketing and no numbers we cannot stand behind.

Latest

Most recent.

What you are signing when you certify

The application is what the contractor believes they are owed. The certificate is what an independent assessment says is due. Where those two are...

Change control on design and build

Before tender a change is priced by several parties who want the work. After signature it is priced by one who already has it. Nothing else about the...

What practical completion actually triggers

Practical completion is not a milestone in a programme. It is a switch that changes several financial positions at once, and it is usually certified...

Who can issue an instruction

A conversation on site is not an instruction. It becomes one when somebody with authority confirms it in writing, and it becomes a claim when nobody does.

Reading contractor’s proposals against your requirements

Two documents describe the building. One is what you asked for, the other is what you are being offered. Nobody is obliged to point out where they differ.

Novation, and what the client gives up

Your architect wrote the specification. After novation the same architect works for the contractor building it. That is normal, and it is worth...

What an employer’s agent is actually for

On design and build there is no architect administering the contract. Somebody has to hold the employer’s side of it, and the contract assumes...

Employer’s requirements that can be enforced

A requirement that states an outcome and a test is enforceable. A requirement that states an aspiration is an invitation to price the cheapest thing...

What a cost plan must state on its face

Two cost plans can carry the same total and mean entirely different things. The difference is in what each one says it has left out.

When to appoint a quantity surveyor

By the time there are drawings worth measuring, the structural solution, the specification and the procurement route have all been chosen. Each moved...

Why a cost per square metre fails at tender

The rate that made the appraisal work is almost never the rate the scheme gets built at. Here is where the gap comes from, and how to close it before...

Benchmarking without copying the last scheme

Every early cost figure starts from something that was built before. The question is whether the differences were adjusted for, or whether the rate was...

Every article

All insights, by subject.

Eighty one articles across six subjects. Nothing here is gated and nothing is a case study dressed up as marketing.

Cost planning and estimating

13 articles. Open the category

12 Aug 2026

What a cost plan must state on its face

Two cost plans can carry the same total and mean entirely different things. The difference is in what each one says it has left out.

Read
08 Aug 2026

When to appoint a quantity surveyor

By the time there are drawings worth measuring, the structural solution, the specification and the procurement route have all been chosen. Each moved...

Read
05 Aug 2026

Why a cost per square metre fails at tender

The rate that made the appraisal work is almost never the rate the scheme gets built at. Here is where the gap comes from, and how to close it before...

Read
04 Aug 2026

Benchmarking without copying the last scheme

Every early cost figure starts from something that was built before. The question is whether the differences were adjusted for, or whether the rate was...

Read
30 Jul 2026

Why refurbishment resists a rate

On new build, the thing you are pricing does not exist yet and is fully described. On refurbishment it exists and is not described at all.

Read
23 May 2026

Value engineering, and how it turns into cutting

The phrase describes two entirely different activities. One is design work that improves the scheme. The other is a list of things to take out because...

Read
07 Aug 2025

Professional fees and the costs outside the contract

A construction cost plan describes the building. An appraisal has to describe the development, and the difference between them is large.

Read
14 Dec 2023

Cost planning through RIBA stages 0 to 4

The same document reissued five times with better numbers is not cost planning. Each stage asks a different question.

Read
09 Nov 2023

External works, the line that breaks residential budgets

The building gets four cost plans and three design reviews. The land around it gets a lump sum and a hope.

Read
21 Jul 2022

Inflation allowances to the midpoint of construction

Inflation in a cost plan is not a percentage. It is a percentage attached to two dates, and the dates are the part that moves.

Read
16 Jun 2022

Pricing site abnormals before you buy the land

The building is the predictable part. What sits under it, around it and on the boundary is where land deals go wrong.

Read
02 Jul 2020

How to set a construction contingency that survives

Most contingencies are a percentage somebody inherited. That figure cannot be defended, cannot be released and tells a board nothing about what it is...

Read
14 May 2020

What an order of cost estimate should contain

It is the first figure a scheme produces and the one everything afterwards is measured against. Getting its contents right matters more than getting...

Read

Measurement and BIM take-off

13 articles. Open the category

26 Jul 2026

Who owns the quantities on your project

Measurement looks like a technical exercise, so it gets treated as one. In fact the question of whose quantities govern decides who carries the risk...

Read
22 Jul 2026

Measuring an existing building before you price it

You can measure a new building from drawings because the drawings are the building. An existing building has to be measured from itself, and the...

Read
18 Jul 2026

Schedule of works or bill of quantities

Both documents get a contractor to a price. What separates them is what happens afterwards, when something has to be valued.

Read
14 Jul 2026

The pricing document you will need later

The pricing document stops being a tender document the day the contract is signed. From then on it is the instrument every change is valued against.

Read
19 May 2026

What a surveyor needs from the design team

A cost plan is a measurement of a design. Where the design is not there, the surveyor either asks, assumes, or produces a figure that means nothing....

Read
26 Jun 2025

Remeasurement contracts and where they bite

A remeasurable contract gives you competitive rates and no fixed price. That is sometimes exactly right and frequently misunderstood.

Read
15 May 2025

What a bill of quantities is actually for

Bills of quantities are described as old fashioned by people who have never had to value a variation without one.

Read
14 Mar 2024

Measuring from an incomplete drawing set

Every measurement from an unfinished design contains assumptions. The only question is whether the reader can see them.

Read
01 Feb 2024

Checking a contractor's quantities at tender

On design and build the contractor measures their own work. That does not mean the client has nothing to check.

Read
20 Oct 2022

Builder's work in connection, the forgotten measure

It appears on no drawing, sits in no model, and has to be done on every project. That combination makes it the most reliable omission in construction cost.

Read
08 Sep 2022

Provisional sums, defined and undefined

Two provisional sums of identical value can have entirely different consequences, and the difference is a single word in the bill.

Read
15 Oct 2020

BIM quantity take-off, what the model does not contain

Model based measurement is faster and more consistent than manual take-off. It is also confidently wrong in ways that manual measurement rarely is.

Read
27 Aug 2020

NRM2 explained for developers

Most developers never read a measurement standard and have no reason to. Understanding what it does is another matter, because it decides what your...

Read

Procurement and contracts

16 articles. Open the category

16 Aug 2026

Who can issue an instruction

A conversation on site is not an instruction. It becomes one when somebody with authority confirms it in writing, and it becomes a claim when nobody does.

Read
16 Aug 2026

Reading contractor’s proposals against your requirements

Two documents describe the building. One is what you asked for, the other is what you are being offered. Nobody is obliged to point out where they differ.

Read
16 Aug 2026

Novation, and what the client gives up

Your architect wrote the specification. After novation the same architect works for the contractor building it. That is normal, and it is worth...

Read
16 Aug 2026

What an employer’s agent is actually for

On design and build there is no architect administering the contract. Somebody has to hold the employer’s side of it, and the contract assumes...

Read
16 Aug 2026

Employer’s requirements that can be enforced

A requirement that states an outcome and a test is enforceable. A requirement that states an aspiration is an invitation to price the cheapest thing...

Read
31 May 2026

Collateral warranties and who actually needs them

A building contract binds two parties. Everybody else with an interest in the building, including funders, buyers and tenants, has no contractual route...

Read
27 May 2026

Choosing a contractor on more than the price

Every developer knows the cheapest tender is not always the cheapest job. Far fewer have a method for working out which one it is.

Read
30 Oct 2025

Payment terms and what they do to cash flow

Payment terms look administrative until a facility drawdown cycle and a payment cycle fall out of step, at which point they are everything.

Read
18 Sep 2025

Reading contract amendments as a commercial risk

Nobody signs a standard form any more. The deal is in the amendments, and they arrive as an appendix nobody prices.

Read
06 Jun 2024

Retention, bonds and parent company guarantees

Three different instruments protect against three different things. Clients frequently hold one and believe they are covered for all of them.

Read
25 Apr 2024

Qualifications and exclusions, pricing the gaps

A qualification is a bidder telling you what they have not priced. It is the most useful page in the return and the least read.

Read
19 Jan 2023

Liquidated damages, setting a defensible rate

A liquidated damages rate that nobody can explain is a rate that will not be enforced, and the client is left proving actual loss instead.

Read
01 Dec 2022

JCT versus NEC for a residential developer

Both forms work. They fail in different ways, and they fail when a client picks the one their team is not resourced to run.

Read
24 Mar 2021

JCT Design and Build, where the risk really sits

Design and build is chosen for certainty. Whether it delivers any depends almost entirely on a document most clients never read closely.

Read
11 Feb 2021

Normalising bids before you compare them

Four bids for the same scheme are almost never bids for the same scope. Until the differences are stripped out, the totals are not comparable.

Read
03 Dec 2020

Single stage or two stage, choosing honestly

The decision is usually taken by whoever speaks first in the meeting. It deserves better, because it sets how much leverage you will have for the rest...

Read

Cost control and variations

14 articles. Open the category

16 Aug 2026

What you are signing when you certify

The application is what the contractor believes they are owed. The certificate is what an independent assessment says is due. Where those two are...

Read
16 Aug 2026

Change control on design and build

Before tender a change is priced by several parties who want the work. After signature it is priced by one who already has it. Nothing else about the...

Read
16 Aug 2026

What practical completion actually triggers

Practical completion is not a milestone in a programme. It is a switch that changes several financial positions at once, and it is usually certified...

Read
08 Jun 2026

Early warning, and the cost of finding out late

Every construction problem has a moment when it is cheap and a moment when it is not. The distance between them is usually measured in weeks, and the...

Read
04 Jun 2026

Acceleration, and whether it is worth paying for

Acceleration is one of the few things on a construction project where spending more money can genuinely save money. It is also one of the easiest to...

Read
05 Feb 2026

Extensions of time and the cost that follows

Granting time is not agreeing to pay. The two are decided under different provisions and on different evidence, and they are settled together far too...

Read
11 Dec 2025

Change control that stops a claim forming

Claims are not caused by change. They are caused by change that nobody valued while the facts were still available.

Read
29 Aug 2024

Dayworks, the most disputed line in the account

Dayworks pay for time rather than for output, which reverses every incentive measurement is designed to create.

Read
18 Jul 2024

Payment notices, pay less notices and deadlines

The payment provisions are the only part of a construction contract where being right about the money does not help if you missed a date.

Read
13 Apr 2023

Loss and expense, what has to be proved

Loss and expense is not the same as extension of time and it is not the same as a variation. It is its own mechanism with its own requirements.

Read
02 Mar 2023

Forecasting outturn while you can still act

Committed cost tells you where you have been. Forecast outturn tells you where you are going, and it is the only one of the two you can still change.

Read
12 Aug 2021

The monthly cost report a developer can use

Most cost reports describe what has already happened. A useful one tells you what is about to, while you can still do something about it.

Read
30 Jun 2021

Instructions given verbally and paid for twice

Nobody sets out to instruct work verbally. It happens because somebody needed an answer that afternoon and the alternative was to stop.

Read
19 May 2021

Valuing a variation under the contract rules

Most variation arguments are not about money. They are about which valuation rule applies, and the parties are arguing past each other because nobody...

Read

Development finance and monitoring

13 articles. Open the category

10 Jul 2026

Preparing a cost plan for a funding application

The cost plan that persuades your board is not the cost plan that satisfies a funder. One is answering whether the scheme works. The other is answering...

Read
06 Jul 2026

Headroom in a facility and where it goes

Nobody sets out to run a facility to the edge. It happens one small overpayment at a time, and the shortfall only becomes visible when there is no work...

Read
02 Jul 2026

Why lenders want your equity in first

The order in which money goes into a scheme is not an accounting detail. It decides how much of your own capital is at risk before anybody else has any...

Read
28 Jun 2026

When the monitoring surveyor disagrees with your valuation

A reduced drawdown is not an accusation. It is two people measuring the same building and reaching different numbers, and the reasons are usually...

Read
07 May 2026

Verifying the final account before the last release

After the last release the lender has advanced everything and holds nothing. Whatever is going to be checked has to be checked before that.

Read
19 Mar 2026

Reading a borrower's cost plan as a lender

You are not checking whether the number is right. You are checking whether it can be tested at all.

Read
09 Jan 2025

Why the monitoring surveyor must be independent

The borrower pays, the lender relies, and everybody works together every month. The only thing holding that arrangement together is structure.

Read
21 Nov 2024

Warning signs in the third drawdown

Facilities do not fail suddenly. They fail slowly and then suddenly, and the slow part is visible from about the third month.

Read
10 Oct 2024

The initial appraisal report, section by section

It is the only report written while the lender still has full negotiating leverage. Everything conditioned at this point is free.

Read
06 Jul 2023

Contingency adequacy from the lender's side

A borrower's contingency is the lender's first line of defence. It is also the line most often set by convention rather than by analysis.

Read
25 May 2023

Cost to complete, the only number that matters

A facility does not fail because too much has been spent. It fails because what remains will not finish the job.

Read
04 Nov 2021

Drawdown certification explained

Every month somebody decides how much of a facility can be released. The difference between doing that properly and approving an application is the...

Read
22 Sep 2021

What a development monitoring surveyor does

The role is often described as checking progress. It is closer to answering one question every month: does the remaining money still finish the building.

Read

Final accounts and disputes

12 articles. Open the category

24 Jun 2026

Closing a final account on design and build

On a measured contract the final account is largely arithmetic. On design and build it is an argument about scope, and the documents that decide it...

Read
20 Jun 2026

The records that decide an account you have not had yet

Nobody keeps records for the account they expect to be easy. The records that matter are made months before anybody knows they will be needed.

Read
16 Jun 2026

The order in which a final account settles

A final account with sixty open items is not one negotiation. It is sixty, and the order they are taken in decides how long the whole thing takes.

Read
12 Jun 2026

Contra charges and the right to set off

Withholding money because the contractor has cost you something feels like common sense. Whether it survives depends on what was written down and when.

Read
03 Apr 2025

Settling early versus fighting on

Most disputes settle. The only question is how much is spent before they do, and whether the settlement is better than the one available at the start.

Read
20 Feb 2025

When the records are thin, what can still be proved

Every contested account arrives with worse records than either party remembers. The question is what survives.

Read
28 Sep 2023

Adjudication, what it is and what it costs

Twenty eight days sounds like a long time until you are the party who has to answer a referral you did not know was coming.

Read
17 Aug 2023

Prolongation costs, proving the loss

Prolongation is the most commonly claimed head and one of the most commonly overstated, usually because the wrong period has been used.

Read
28 Apr 2022

Global claims and why they usually fail

A global claim is what happens when the records will not support an itemised one. It is a symptom rather than a strategy.

Read
15 Mar 2022

Defects, retention and the last five per cent

Retention is the client's last practical leverage. It is also the money most often released by inattention rather than by decision.

Read
27 Jan 2022

Testing entitlement before you argue about value

Two parties can spend six months negotiating the value of something one of them was never entitled to claim. It happens constantly.

Read
09 Dec 2021

How a final account is actually assembled

Most final accounts are argued rather than assembled. Building one properly takes longer at the start and settles faster at the end.

Read