Work / Retrospective CGT · London Borough of Bromley
— Case study · 05 / 2026

A retrospective
valuation.

A Red Book valuation of a detached family home in the London Borough of Bromley, prepared retrospectively as at April 2015, the base date commonly used for capital gains tax calculations.

Red Book CGT · Retrospective Residential
Indicative elevation: detached suburban family home, not to scale
Instruction
Retrospective MV
For CGT · private client
Sector
Residential / detached
Family home · long-held
Location
Bromley
London Borough · Greater London
Valuation date(s)
Apr 2015 + Current
RICS Red Book · VPS 4

A private client needed a Red Book valuation of their detached family home in Bromley: not for a sale, but for their accountant.

The property had been held for a number of years and a retrospective opinion of value was required as at April 2015, the base date commonly used for capital gains tax calculations following the introduction of rebasing rules. This is exactly the kind of instruction Taylor Berlin handles regularly.

The task was to reconstruct market conditions as they stood over a decade ago, drawing on the right evidence and the right context for the date in question.

  1. 01 Comparable sales evidence from the period: transactions in Bromley in the months either side of the valuation date, adjusted for condition, accommodation and tenure.
  2. 02 Knowledge of the Bromley residential market at the time: how the borough was priced and trading relative to the wider South-East.
  3. 03 The market influence of the December 2014 Stamp Duty reforms, which had reshaped buyer behaviour at the upper end in the months before the valuation date.
  4. 04 Pre-election caution in early 2015: a discernible drag on transaction volumes and pricing in the run-up to May.

The result was a dual-date Red Book report providing both the April 2015 retrospective figure and a current market value, giving the client’s accountant everything needed to complete the CGT calculation with confidence.

— Dual-date valuation
VPS 4 · Retrospective + current

Two opinions of market value in a single Red Book report: the historic figure for the CGT calculation, the current figure for context and completeness.

Retrospective Apr 2015.
+
Current Today.
— Outcome

Everything the accountant needed, in one report.

— Context

London Borough of Bromley.

A south-east London borough with a deep stock of detached and semi-detached family housing dating largely from the late Victorian, Edwardian and inter-war periods, well-traded throughout the period in question.

  • RegionGreater London
  • BoroughBromley
  • Property typeDetached family home
  • Valuation basisMarket Value
  • Retrospective dateApril 2015
  • Current date2026